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As a new Android user, this question has had me thinking quite a while. Is it possible to create an app or is there an app available that will do the following; Remote access to your device Impossible to remove from your phone (rooting, flashing, w/e) Turn your phone into 'Lost Mode' and make sure it can only be used r... | Google's Android Device Manager service can do all of that apart from the remote control, though unless your phone has a new enough OS to have it installed by default (instead of pulled down as part of the Google Services updates) it's difficult to remove rather than impossible. Find your lost phone with Android Device... | How can I control my phone remotely? | android |
I am used to doing a long-press-on-the-home-button to trigger the voice- search. That's a bad iphone habit. Here with Android, it is always switching to the currently-running-apps screen. I tried so many ways ( including the home2 share app) but I could not figure it out. Could you tell me an easy way to configure note... | To put Android into "listening mode", do your Long press, then click on the Google logo at the bottom of the screen. That's Google Now, your Siri counterpart. For Samsung devices with S-Voice, double-pressing quickly on the Home button will trigger S-Voice. | help me out making my transition from iphone please | android |
I am taking an exam during which any materials or electronic devices are allowed, provided that I can demonstrate that they cannot be used for communicating with others. I want to take my Android tablet and use it to display PDF files that I don't want to print out. I need to come up with a way how to temporary turn a ... | As no "bullet-proof" system is required here, and at least some level of trust assumed, possible solutions hide behind the buzz... ahem, key-words kiosk-mode and child-protection. In short: you create a "jail" you're working in, and hand it's key (password) to the teacher (let him/her set a password – of course on the ... | Provably, temporary, disable wireless networking on Android tablet | android |
I want to save some bandwidth for my mobile data plan, is there a way I can disable loading images for Google Chrome, the way I can for Opera Mini for example? I couldn't find an option in the settings. | Wikipedia mentions that this feature exists, but I can't seem to find it in either Chrome nor in Chrome Beta . | Disable images in Chrome for Android | android |
Are there any solid reference websites where I can compare benchmarkings of various Android devices? Similar to sites like CPU Benchmark and Video Card Benchmark for PC devices. | PassMark has a quite comprehensive list of Android devices with CPU, memory, storage, 2D graphics and 3D graphics benchmarks . If your device is not on the list, you can use the free app on Google Play to measure your device (and contribute to the public list). | List of Android devices benchmarks | android |
Well, accidentally ended up formatting a nexus 4 by clockworkmod, was the system and everything else, I've tried various ways to try to recover this brink, worked no more, all require the famous usb debugging, plus he has no system and windows no longer see it as an external drive to be able to put an image on it, and ... | If you can get to recovery you should be able to flash the full factory image which will restore your phone to completely stock. Download the full occam factory image , which includes the full system, bootloader, recovery, kernel (boot.img), and radio. It's a clean slate for these components - they'll flash cleanly ove... | accidental wipe android nexus 4 | android |
With Nexus 5 (Android 4.4 KitKat), Google has shipped two runtimes to run apps. What are the differences between Dalvik & ART for endusers? How can endusers be affected by this? Is there any specific reason I should choose new ART runtime? | Dalvik VM (Virtual Machine) is Google's version of a Java VM (on which apps run). VMs keep apps isolated and independent from actual hardware and other apps. But, for this to work, Dalvik needs to convert so called bytecode (designed for virtual machine) to native machine code. In order to minimize the performance pena... | Dalvik VM vs. ART (Android Runtime): Impact for end-users? | android |
I was using CyanogenMod 4.10.3. Due to slow-downs I decided to downgrade, but took a backup of all available apps using ClockModRecovery including WhatsApp. In backup/ directory, I see some img files, not individual apps. Since I changed my number and I would like to use my old number with WhatsApp, I would like to res... | Yes, it is: Titanium Backup can restore from nandroid backups (which is what CWM created) AppExtractor can extract individual apps/data from Nandroid backups Nandroid Browser lets you... guess what :) and then there's Nandroid Manager to browse them, restore single items, etc. Further readings: the nandroid stackexchan... | Restoring one application data from ClockModRecovery Backup | android |
I have a Zen Touch 2, a Cyclone Voyager and a Samsung galaxy Fame, all configured for USB debugging. I also have a laptop running Ubuntu 12.04, the standard ADB obtained from apt-get, and Fastboot obtained from apt-get. My problem is that when I plug in my Fame on it's own, I can see it in the list of attached devices ... | Maybe you are missing udev rules for the other device manufacturers? A rule for samsung is probably included by default. Look here for instructions http://developer.android.com/tools/device.html | Make a device appear in ADB | android |
In Android 4.4. KitKat, how do I move the voice input icon, i.e. the one with the microphone icon, from the alphabetic keyboard (next to the spacebar, at left) to the numeric keyboard? At least up to Android 4.3 It used to be possible to do that via an option in the settings. I checked several times the settings of my ... | The only way to achieve this is to port over the old keyboard from an older device. This might break stuff, and probably is not the safest bet. You could install MultiLing Keyboard and have a voice button on your numpad. https://play.google.com/store/apps/details?id=com.klye.ime.latin&hl=en | How do I move the voice input button to the numeric keyboard in KitKat? | android |
I have Samsung Galaxy S2, that was sent to the lab for repair. The phone arrived and all the internal memory was deleted. All the data that was on the internal memeory: Media, SMS, Contacts (actually I synchornized the contacs with my google account, but some contacs were deleted from my phone..) Is there any way to re... | There is some hope to recover data which was stored on the “internal SD card”. Samsung Galaxy S2 supports USB connection in the mass storage mode (unlike some other more recent models). This mode provides the required block-level access to the partition which holds your media and other files (but not contacts, SMS and ... | Is it possible to recover data from internal memory? | android |
My phone has got some error and I am returning it to the service center. As my phone contains my personal data, images and videos I would like to erase them so that they can never be recovered (even after being rooted). Is there any easy way to do that because I am not an Android developer. Does factory reset do this t... | As John states in stackexchange-url ("his answer"), a factory-reset is sufficient in most cases. I doubt a service technician would take the effort required to restore the data from your storage – though it's definitely possible. What John had in mind, however, is true: If flash storage is really wiped , all data is go... | How do I delete all data from my Android phone? | android |
Several times a week I have the problems where the GSM signal is lost on my phone, due to bad coverage in that area. The real problem for me is that when that happens, and when I move to a place with known coverage, the signal doesn't come back. The only solution I know is to restart the phone. Switching to airplane mo... | The following is no complete solution, but at least a work-around, avoiding a long reboot: There are apps like Quick Boot (others have things like "fast reboot" and the like in their names/descriptions). Other suggested by those names, they do not really reboot your device, but simply restart the system server (for det... | GSM signal lost - howto get signal back without restarting | android |
A friend of mine shared a Google document with me. If I use my Gmail app on my Android device to open the email that includes the link, I can see the document in the Google Drive app. However, I can't seem to find any way to mark that document using the Google Drive app so that I can get back to it easily. Every time I... | If it was shared to your Google account, you should be able to find it in <code> Shared with me </code> : | Can I make a Google Doc shared with me more accessible on my Android device? | android |
Today I installed cyanogenmod JB on my galaxy note and I found this huge directory (2.47GB) in the /sdcard partition. Can it be removed or it could be useful? Can I move it on my pc? Thanks in advance | Two times yes: Of course it can be removed, and of course it can be useful. At that place ClockworkMod stores the nandroid backups you've created with it, and from that place you can restore them when need for that arrives. In case of an external SDCard, and when space on it is precious to you, you could simply copy it... | clockworkmod/backup can it be removed? | android |
I've recently received a Nexus 5, which touts very tight Google Now integration. This weekend I've been visiting my parents. We had a discussion about a local restaurant which they went to last night. I just flicked over to Google Now and it's got a card about that restaurant, and only that restaurant. (we're in a big ... | It is possible that maybe your parents (or your friends) searched for it, or +1d it, or checked into it, and they are in your Circles! Google regularly gives you suggestions based on what people in your Circles like. Take a look at http://www.google.com/policies/terms/changes/ Feedback from people you know can save you... | Is my phone listening to me? | android |
At one point screen just become bit higher. Buttons gone, and it's not that funny, as it can seem. Phone become literally single-task and I had to reboot just to switch application. Found some software emulator that helps me to survive at the moment, but question is how to get buttons back? No, reboot obviously didn't ... | There is a mode in CyanogenMod and other ROMs called "Expanded Desktop" . If your phone is in Expanded Desktop mode, then the navbar will not be visible (The notification bar may also be hidden, depending on your settings). The easiest way to check if you're in Expanded Desktop is to try toggling it. Simply long-press ... | Soft buttons disappeared | android |
Is there any adb command to enable/disable a system app? Thanks | Yes. The command is <code> pm disable <package name> </code> . You must be root in order to do this: <code> PC> adb shell shell@hammerhead:/ $ su root@hammerhead:/ # pm list packages -e | grep 'calculator' package:com.android.calculator2 root@hammerhead:/ # pm disable com.android.calculator2 Package com.androi... | Enable and disable system apps via ADB | android |
I am getting the following error message every now and then. As far as I notice, it only happens if my phone has internet connection mostly on Wifi. <code> an application has been forced to stop for an unauthorized attempt to access system in your device. it may be safe to delete an application obtained from an unautho... | When it appears, long press on the message and it shows the app causing the problem. (It probably is Knox.) Clear data and clear cache, that worked for me. | Error: An application has been forced to stop for an unauthorized attempt to access system in your device. | android |
Is it possible to move the location of the new "Google Now Screen" in KitKat? The screen is typically left of the home screen. What I want to achieve is, that it moves 1 screen further left, giving me another screen for apps/widgets left of the home screen. | It's not possible with the Google launcher, but it's fully possible in 4.4 in general, you just need to stop using Google's launcher. The "regular" launcher is still included so you can switch to that. | Move Google Now screen in 4.4 (KitKat) | android |
For a while now my contacts quit synching on Android with an Exchange 2010 server. Calendar and Mail syncing still works, both directions. This problem is described elsewhere ( e.g. here ) and I tried all the proposed fixes: Click sync now in accounts, deactivate contacts, click again, re-activate contacts, click again... | It turned out to be a sync error for some contacts with malformed birthday field created on Android which causes exchange to silently fail. You can debug it, by getting the Exchange server-side logs , by going to your Exchange Webmail (Outlook Web Access, OWA): Login in to webmail.yourdomain.com go to: Options -> All o... | MS-Exchange contacts are not synching even though mail and calendar syncs fine | android |
I have a Galaxy Note 3, and Google Now has no speech. The "Google Search" app is up to date from the Play Store. All of my volumes are set to maximum. I have gone into Google Now settings and selected "Voice -> Speech output -> Always speak". I have gone into "Settings-> Language and input"; under "Text-to-speech optio... | Answering my own question, this seems to just be my misunderstanding of how Google Now works. I was typing the search and expecting a voice response. But apparently it only responds with a voice if you ask with a voice. If I use voice search, then a voice does indeed reply. Leaving this question/answer here in case any... | Google Now has no speech on Galaxy Note 3 | android |
I know Android is a modified linux kernel, but does that mean there is any relation between the kernel numbers? In other words, Is kernel number (for example) 2.6.xx of Android somehow based on or modified from 2.6.xx of Linux? or is it maintained separately? | Your first guess is correct: an Android kernel is a patched version of the mainstream Linux kernel with the same version number. | Relation between Linux and Android kernel versions | android |
I exported my nexus 5 contact list and it said on the phone that the contact list has been exported to 'file: /storage/emulated/0/00002.vcf.', so where is this 'file: /storage/emulated/0/00002.vcf.', and how do i access(on my phone or computer) it(as a whole file)? | It will be stored in the root of your device (/sdcard). If you plug your phone into a computer and access the phone you should see it like this: (This is on my Nexus 7 but it will appear the same) | Where is my exported nexus 5 (kitkat) contact list? How do I access it? | android |
I have already flashed the latest nightly (as of this time) and the corresponding gapps for my Samsung Galaxy S4 via CWM. But when I checked the Phone settings (About Phone), Baseband version is Unknown. I have already tried flashing I9505XXUEMJ7_MODEM.tar via Odin (as Phone), but the Baseband is still Unknown. What am... | Finally fixed the issue (old CWM): Upgraded CWM from 6.0.3.2 to 6.0.4.4 using ROM Manager. Rebooted to Recovery Mode Wipe Data / Factory Reset Wipe Cache Partition Wipe Dalvik Cache Flash CM zip (two times) Flash GAPPS Reboot phone (boot animation now showed; this was just black before) After the phone booted, (and the... | How do I flash a modem for CyanogenMod / CM10.2? | android |
I am wondering if it is necessary to buy a stackexchange-url ("USB OTG cable") to access a USB stick from an Android (4.4) phone, or if it suffices to take the Micro-USB-to-USB cable that comes with the phone (for charging) and connect it to the USB stick (via a female-female adapter)? | I would do away with a lot of connections, and just do a <code> Phone > USB OTG > USB Stick </code> connection. An OTG Cable is very cheap anyway. You can get one for a USD1 (at least here in the Philippines), or less. | Connecting a USB stick: OTG cable required or will standard USB (charging) cable work? | android |
My devices are all linked to my main Google account. This is encouraged, almost required, by Android, for example to make my Google Play apps available everywhere. However, it requires me to store my main Google password on the device, which provides access to a ton of sensitive data: all email, Drive documents, Google... | Google now has a device manager as part of Google services where you can do a remote wipe: https://www.google.com/android/devicemanager At least put a pin lock on your device so that it will be harder to access. Don't enable Developer Options / keep adb on all the time. | Protecting my Google identity in case my Android device gets stolen? | android |
What is the best place in the Android (4.4 or similar) file system to save some documents (.pdf, personal docs, other files, music, ...)? In other words, is there a specific folder where one can create a home directory and put in files without having to fear that it is wiped out by (updates of) Android? | Note that this is not guranteed to be the case with every update, and may vary from device to device. However, in every case I'm familiar with, this has held true. OTA/Automatic updates (and many but not all ROMs installed with a custom Recovery) will generally ignore anything inside the <code> /sdcard/ </code> directo... | Where to store (personal) files? | android |
I performed factory data reset of my another device "HTC Explorer". And before performing the reset Play store was there but now it disappears, and instead of play store now its Market place. So how to convert Market place to Google Play Store again? | Google Play was formerly Android Market. Your phone would originally have had Android Market (I am assuming its an old one, probably Gingerbread). When you did a factory reset all the updates were reverted back included on Android Market (aka Google Play). Android Market automatically updates itself so give it some tim... | In Explorer, after performing factory reset Google play store converted to Market place | android |
My work has blocked access to Google Docs. I need to print off something which is on there. At my laptop at home, I normally just export a google document to excel format but on the app version, it allows me to "send" it to an email address but it seems to send it only in PDF format. Is there a way I can export it into... | seems the only way to do it was to open up the document through the browser, selecting desktop mode. Then "View spreadsheet mode" right at the bottom. Then it'll load it up like it would if you loaded it from a computer. Then you can select File -> Email as Attachment. Bit of a crappy process... | Can I convert a Google Drive spreadsheet to Excel format from my phone? | android |
What does it mean when the system indicator icon (red triangle with a white exclamation point in the center) shows up next to the phone number I sent a text to? | That icon means the text is not sent. Just click on that text and it will push the typed text into compose box, you just have to press send. | System Indicator icon, what does it mean? | android |
This might be a no-brainer but I am having a hard time figuring it out. Today I got the update of Google Text-to-Speech on my HTC One X. I was able to configure it and even listen to an example. But how do I use it? The Play store description states that it can be used with Google Play Books, Google Translate and many ... | Because Google Text-to-Speech isn't really an app : it's a library app . That is, it doesn't have a user interface for you to interact with; rather, it offers an interface to other apps to use its functionality. Other apps on the phone can give text to Google Text-to-Speech for it to speak out loud. It's up to the auth... | How to use Google Text-to-Speech? | android |
My Nexus 7 died. I didn't see it happening. My son was playing, went to school and left it charging. At night it didn't turn on anymore. The screen is black. I've followed the Asus instructions . This answer says to disconnect the battery. Any other tip? Nexus isn't officially sold in my country (Brazil). I'm afraid I ... | The solution is to buy a Galaxy Tab. My Nexus is dead. Asus not even accepts it to make a diagnostic. The "global" warranty is not valid in Brazil. By a better quality product from a company that respect their users. | My Nexus 7 is dead, any suggestion? | android |
I have an old backup of the WiFi passwords on my Nexus 7. I also have a new configuration which has some passwords that are newer and some that are older. How can I merge the configuration in a controlled manner without having to entrust my WiFi passwords to some third-party app? | If you have root access on your device: Grab a copy of <code> /data/misc/wifi/wpa_supplicant.conf </code> , e.g. using <code> adb pull </code> , and save it to your computer Restore the data from your backup, and grab a copy of that in the same manner Use a text editor, and merge the entries to a new file Put that file... | How can I merge WiFi passwords from a backup and from the current configuration? | android |
So this is very odd. Last night my phone rebooted itself. Nothing unusual there - it does it from time to time. However, this morning when I try to read the news I get "Application is not installed on your phone". So I check some more apps and lo and behold I get the same message. Any app that was installed on my SD ca... | As stackexchange-url ("Manishearth wrote"), this might indicate trouble with the card (and very likely does). The boot you describe might have been "too abrupt", not cleanly unmounting the card and thus corrupting its file system; in which case the "good ol' <code> chkdsk </code> " should help (btw, Android ships with ... | All apps installed on my SD card have suddenly disappeared | android |
I have a Nexus 10 running Android 4.3. Can the Fitbit sync with this device? This compatibility page doesn't explicitly list it, but I'm guessing it may work, based on the bluetooth requirements, which I believe are satisfied by Android 4.3. But before spending a lot of money, I'd like to be sure. Has anyone used this ... | I borrowed a friend's Fitbit and tried to sync it with my Nexus 10. I enabled Bluetooth. I then installed the Fitbit app and logged in as him. There is no option anywhere to sync the device. I then logged out, and created a new account. On a compatible device, once the account is created, it prompts you to sync a Fitbi... | Can the Fitbit sync with a Google Nexus 10? | android |
I did a factory reset on a Samsung Galaxy S2 like this: switch off phone hold down buttons Volume Up, Home and Power until phone boots into "Android System Recovery" mode select wipe/factory reset and confirm all questions As expected, after the factory reset, all apps were not installed anymore. But this does not seem... | A factory reset usually doesn't touch "external storage" (may sound confusing, but that includes the "internal SDcard" as well) – unless it explicitly specifies so (some devices/ROMs have a corresponding checkbox in the system menu, usually Settings → Backup & Reset , where this might be specified to be included). ... | How to properly factory-reset a Samsung Galaxy S2? | android |
How to redirect entire phone traffic (including all apps) to a proxy (with out rooting the phone) We are developing a parental control app for Android, in that we have requirement to capture all out going traffic from Android phone for categorization. Is there a way to achieve this in Android with out rooting the phone... | It sounds like you are describing a VPN (virtual private network). A VPN directs all traffic (whether http or other tcp/ip protocols) through a specific server, usually with the intent to encrypt traffic between the device and the VPN server. However, encryption isn't necessary, and a VPN would have full control over r... | How to redirect complete outgoing phone's traffic to a proxy server? | android |
How we can compare Ultra Pixel and Mega pixel? And what is the difference between these two camara technologies. | Extracted from UltraPixel vs Megapixel: HTC One & iPhone 5 Camera Shoot-Out : Ultra-Pixels: Basically the sensor on the HTC One features larger pixels for better low light sensitivity and, on paper, better overall camera performance. [...] We have to understand that “ultrapixel” is just HTC’s marketing team saying ... | What is the difference between Ultra pixel and Mega Pixel camara? | android |
I want to try this record and replay tool , but do not want to root my device. Is it possible to run a binary which might need root access, without rooting the device? | After some searching and trial and error, I could run replay.exe from RERAN, without rooting my device. For some reason I could not copy and exectute replay.exe to/from /data/local as the original article suggests, but I could do it to/from /data/local/tmp. I tested it on 3 devices. HTC-One mobile, Google Nexus 7 tab, ... | How to run a compiled binary which writes to /dev/evdev/event* without rooting the device? | android |
My android device is quad-core . But during booting only 2 cores are up . CPU_HOTPLUG is enabled . In dumpstate i found : <code> maxcpus=2 </code> in command Line options. I wanted to make this maxcpus=4 . I have all source code with me . I wanted to set this maxcpus value in source code (especially in default settings... | I presume that CPU_HOTPLUG means hotplug cpu governor is enabled in your system. hotplug cpu governor can make cpu core online or offline based on total system load. So, It might be possible that your other two cores are offline at the moment. You can check the exact cpu cores by, $ cat /sys/devices/system/cpu/present ... | where does default setting for Command Line Switches is set in kernel source code in android | android |
I'm looking how to recognize my Nexus 4 as a drive. Actually it's like a camera. Any idea? | This is how many modern Android phones (Including all Nexus phones) work. The Nexus 4 can switch between MTP and PTP modes. To overgeneralize a bit, it can use MTP to emulate a Media Device and PTP to emulate a camera. The Nexus 4 has no way to mount as a Mass Storage Device (and thus, no practical way to mount it and ... | How to recognize Nexus 4 as a drive | android |
Consider a tablet user without data plan using only wifi connections at public places (e.g., hospital, hotel) that often die after 2 hours after accepting terms of use. (and is not running skype or other app all the time to show connected status) Is there a widget (similar to battery-big text % of battery in the time t... | ANdroid default icon provides the functionality color of the icon (gray) already indicates "sign-in required" type of connection. (credit goez to izzy) | Green/red widget icon or notification tray app to indicate if internet is available (tablet) | android |
Is there any difference between restoring an app and installing an app on an Android device, or are both the same? | As David said, you can restore an unsupported app from a previous backup, or you can restore the data of that app ( e.g. saves in a game ). when you install an app from the play store, you are limited to what's available for your country (unless you're rooted then there some ways to go around it) and even if you instal... | What is the difference between restoring and installing an app on an Android device? | android |
HTC says best feature of the device. But what exactly is Blinkfeed? | BlinkFeed—an aggregator of news and social network content [...] BlinkFeed will always occupy the leftmost page of the home screen. The default BlinkFeed home screen of HTC Sense 5 ( Wikipedia: HTC One ) To explain the second line: By default, there will only be two home screen panels out of the box: a "BlinkFeed" page... | Blinkfeed, what exactly it is? | android |
Ever since I've installed my own CA in the key store I'm getting warnings that the network may be monitored. Well, I guess that's a valid warning if I don't trust these certificates, but I really trust my own CA here; even more than the ones preinstalled. How do I get rid of this warning I see at least once per day pop... | I was looking into the same issue, and it was answered on XDA http://forum.xda-developers.com/showthread.php?t=2537794 In short - it is possible if your phone is rooted to move the certificate to the System section. Very annoying that it is not possible to exclude certificates from this warning - it only produces noise... | How do I get rid of "Network may be monitored" in KitKat? | android |
Device: Samsung Galaxy Note 3. My partner's name is not "anglo" and I have not worked out a way to pronounce it and have it understood. Are there work-arounds for this? Can I get the phone to pronounce the name so that I can try to use the same tortured pronunciation? Is there a way to set a simpler "nick name" for a c... | I would try the first approach, and have the system pronounce the name. To do so, a simple TTS app like Auto Speak Clipboard 2 will do: Install it, copy her name to the clipboard, send out all cats and your girl (to avoid their punishment), and have that app speak what it thinks the name should sound like. Have some Va... | Voice commands for contacts with unusual names | android |
I've browsed for this information and everything I've found says to hit the power button and volume down at the same time and a white line appears around the screen and you have a capture. I've tried so many times and i just can't do this. I can get blank the screen I can make the Power Off, Flight Mode, Restart dialog... | It works out that you just have to keep trying. The Power and Volume down together (for around a second) will eventually yield a screenshot about 1 time out of a hundred. Took a look at most of the apps out there and they either need you to root the device or install loads of other stuff, work for phones rather than ta... | Android 4.2.2 Screen Capture on Galaxy Tab 2 10.1 | android |
The signal indicator on my phone often shows "3G" or "H+" in the signal indicator. When there's no connectivity it doesn't show anything. I'm referring to the icons in the status bar like these: What are the different signal icons that are shown in android? I've never used an LTE/4G handset or even been on one of those... | They are referring to the mobile data connection: G : GPRS (slowest) E : Edge (enhanced GSM) 3G : UMTS H : HSPA (enhanced 3G) H+ : HSPA+ (even more enhanced/faster HSPA) 4G : LTE (thanks to eldarerathis for confirmation) The bars obviously show signal quality, and the arrows show whether data transfer is in progress. A... | What are the different signal indicators avalable on the notification bar? | android |
Device: Samsung Galaxy Note 3 The wireless tethering hotspot name is <code> AndroidAP </code> . I would like to change this if I can. | I have a Samsung Galaxy S4, but you should have something similar to this: <code> System settings > Connections > More Networks > Tethering and portable hotspot > Portable Wi-Fi hotspot </code> . | Change the name of the Wi-Fi hotspot | android |
For my own setup I use a personal CA: "Gert van Dijk CA". I'm using this for HTTPS and VPN successfully by importing the CA certificate into the Android keystore. I'm having trouble getting the Email app recognize this. Here are some notes about the current setup: The custom CA is listed perfectly fine in Settings -> S... | Ah well. It appears that the Stock Email app doesn't do SNI . This means that in the initial connection to the server it was presented with another certificate it should discard (but didn't). It seems to me that this is a feature request for the Email app, as other apps do implement SNI. Changing the Apache SSL configu... | How do I import a user CA for the Email app properly? | android |
I have a nexus 4 and had been trying to copy files with Windows 7 - but when I plug it in, it doesn't show up in my device manager but when i enable USB debugging in the developer options, it shows up under "Other devices" and Windows can not seem to find the appropriate drivers for it. What's happening here? How can I... | I've figured it out, had to enable MTP mode under Settings => Storage - > settings button on top right -> USB computer connection and then enable MTP from there. | nexus 4 not allowing me to copy files | android |
I have Cyangenmod 10.1.3 installed on my Xperia Z. When I tried to download Cyangenmod 10.2-20131101 nightly build in my phone's settings, no error but it silently failed after some time. I tried again but the problem persists. Any idea what went wrong? Am I supposed to download the zip file, copy it to my phone and bo... | You can't upgrade form 10.1.3 to 10.2 directly. You must flash it manually from recovery and you also have to wipe data. | How to update Cyangenmod 10.1 to 10.2? | android |
I have an older LG p990 that has a HDMI port, and with the right cable I am able to show movies on it on the TV. My new phone is a Nexus 4, it has no HDMI port. Based on this stackexchange-url ("question and answer"), I know how to connect it to an MHL compatible TV. But how can I use a TV without MHL capability? Is th... | MHL compatibility on a TV only means that it will supply sufficient power (500mA, 900mA, or 2000mA, depending on which version of the MHL spec it is compatible with) through the HDMI port to power the adapter and charge the phone. An MHL adapter will work just fine with a non-MHL TV. You just need to supply your own po... | How can I connect my phone without a HDMI port to a non-MHL TV? | android |
I have planned for some time to use a smartphone or tablet to give scientific presentations via projector, instead of using a laptop. I'm now thinking about buying a new Android smartphone, if I can be sure that in the end I'll be able to realize this goal with it. So my main question is: What do I have to look out for... | Make sure that the phone that you get has a micro-HDMI port, in addition to the traditional USB port. This will allow you to transfer video more easily. As you noticed, there are two types of converters- the tiny ones, and the large bulky ones with a power supply. The difference is, as stated on the link you sent, that... | How to use an Android phone or tablet to make a projector presentation? | android |
When I run an app, select a file, and choose "delete" what happens then: the file is moved to trash (and later is removed by OS when some conditions are met) the file is removed from the filesystem at once (1) or (2) depending on an app ? | There's no OS-wide "Trash" or "Recycle bin" like other shells have. However, the Android design guidelines recommend app authors to put something like that in each app as appropriate, to allow undoing deletes. Thus, in one app, a delete button might delete the content immediately, while another might mark the content a... | What does deleting a file really do? | android |
I would like to switch my Stock Android OS to Cyanogenmod with the least trouble possible on my Samsung Galaxy S3. So basically I would like to keep: My data (files, contacts, sms) My apps My apps data (progress of games) Is this even possible? What is the best approach to do this? | If your device is not yet rooted, an alternative to stackexchange-url ("Alex's suggestion") of Titanium Backup (which I'd second otherwise) would be to use <code> adb backup </code> (creating a backup file for each app separately is important here, as <code> adb restore </code> just works per backup file, not per app),... | What's the best way to switch from Stock Android OS to Cyanogenmod on Galaxy S3? | android |
While watching videos in browser it shows me options of 144p, 240p, 360p, 480p, 720p and so on. But on YouTube app for Android I only see option of HD/HQ (I assume its High Definition / High Quality). How can I watch videos in 144p, 240p, 360p, 480p, 720p on YouTube app? | You can't. Those quality settings only apply to the desktop version. Mobile apps use a different set of videos, which are already optimized for mobile devices, and have two different quality settings, regular and HD. | How to watch videos in 144p, 240p, 360p, 480p, 720p on YouTube app? | android |
Look at row 62 of this graph . It is the time taken for a quick sort integer array, on a VM for android 4.4 (KitKat). How come that ART is faster except at an array size of 62000? In fact, it is significantly slower than Dalvik, as Dalvik takes 238 seconds, but ART takes 333 seconds. The result does not even fit the pa... | Most probably the test is inconsistent. Have you tried repeating the test at least 100 times to have pseudo-valid statistic results? And are you sure the emulator is a valid platform on where to test such low-level things? It may be optimised for the Dalvik VM. Best guess is to try it on a real device, like the new Nex... | Why is the ART VM slower than the Dalvik VM, at sorting an array when the array size is 62000? | android |
I have a china tablet named Quest. I have accidentally repeated pattern lock more than 5 times. Now I have also forgotten the email address. So for a factory-reset of my tablet I simply booted it into recovery mode. But it shows an Android bot lying with red exclamation mark. After a spending hours I found a shortcut i... | I Have the same problem with etech et-7008b tablet, the USB DEBUGGING is off before they made made too many pattern mistakes. My advice is make sure USB debugging option is checked/turned on before making any security password on your devices but it would be easier to unlock for those stolen or lost devices. | can't use adb shell in recovery mode | android |
I recently rooted my device (4.1 version Asus tablet). However, when I connect my device to internet, it automatically search for and download system firmware update every time. Then it asks me to tap the notification to update the system. There is no option provided to disable that. How can I disable checking as well ... | If you are having root, use Titanium Backup to disable/freeze CMClient.apk & DMClient.apk. This will disable the tablet to check for OTA from Asus servers. If you want to update the tablet to latest firmware later, unfreeze/enable the apks and proceed with updating. | How to stop notifications of OTA update after rooting? | android |
Is there any way to delete cookies, history and other private data in the Google Chrome browser on Android? There is no such option in the Android version of the browser. | You can clear all browsing data from Settings -> Privacy -> Clear browsing data. Source : Chrome Help | How to clear cookies, history and other private data in the Chrome browser? | android |
Apparently newer versions of Android require the use of Android File Transfer. I have an older machine that doesn't require this, and just mounts as a USB mass storage device. I can't see a technical reason why Android File Transfer is now required when it used not to be. What changed in order to make this necessary? W... | Newer Android devices don't support USB mass storage because it has a big shortcoming: the phone and the PC can't access the storage at the same time that way. This is because USB mass storage is a low-level protocol giving the PC low-level access to the whole filesystem. This causes knock-on problems when you connect ... | Why is Android File Transfer necessary? | android |
I have just installed a pdf reader in my Samsung Galaxy Y mobile phone which comes with android 2.3 Gingerbread. This pdf reader has a text to speech option, but I am not able to use it and getting the error message: "No Language installed in your Default TTS Engine". What should I do? How do I fix this? | You need to install the speech synthesis data for the TTS engine. You can find it on the play store here . | "No language is installed in your default TTS Engine"? What should I do? | android |
Just got a Nexus 5 running KitKat (what else?), but I cannot figure out how to add widgets to the lockscreen! On JB, swiping right from the left edge while showing lockscreen would display a "+" widget option. This is no longer the case. Are lockscreen widgets gone?! | You have to check "Enable widgets" in Settings > Security. Then you can swipe right on the lockscreen as usual. | How do you add widgets to the lockscreen in KitKat? | android |
Now that Android 4.4 aka KitKat is out, I couldn't find out whether Samsung Galaxy Nexus will get the upgrade or not. Does anyone have any information on this? I hope it will get it, this why I bought Nexus device in the first place. | Nope, there will be no official support for Android 4.4 on the Galaxy Nexus . However, you will almost certainly be able to flash custom ROMs that are based on it. There's some supposition and explanation going on on Android Police . They make a few good points: The Galaxy Nexus is old and well outside normal support w... | Galaxy Nexus and KitKat | android |
Android 4.4 (KitKat) was officially announced on October 31, 2013. (You can review the high level changes in KitKat at the official Android Developer's site or the announcement on the official Android blog.) Of course, not all devices will get this update right away and others won't get it at all. Each manufacturer and... | This community wiki will list all of the known and rumored dates for devices. If you have an update make sure to follow the format that's been established, and the following guidelines: Keep phones in alphabetical order listing the manufacturer and model Specify if the date is confirmed or rumored and link to the sourc... | When will my device get the Android 4.4 update (KitKat)? | android |
Is it possible to only disable voice/video calls in hangouts but leave messaging? | Nope you cannot only selectively disable video calls. The least you can do is disable incoming invites from the app settings. | Disabling hangout calls for phone | android |
The middle third (long-narrow thirds way) of my digitizer seems to have crapped out. Diagnosed from having vary hard time unlocking and weird selection issues, to suspecting digitizer, to getting a drawing program installed and seeing no record of movement over that part of the screen when drawing. This makes unlocking... | I have the same model and the digitizer is also 2/3 dead. If hold vertically, the left third from top to bottom works plus the rightmost vertical pixel line. I was able to unlock it using a two finger gesture: Swipe the slider as far as possible to the right and hold it, then touch the right edge of the screen with a 2... | Partially dead digitizer - any way to change slide to unlock? | android |
My Sony Xperia J phone was in my pocket and I wanted to read an ebook, so started my reader application. It showed a black screen and when I checked the shelf, all my books were gone. I noticed a new notification icon that looked like a folded SD card. I checked its message that said: SD card is empty or its file syste... | One of my family members had the same problem, SD card misbehaving, then working for a few days, on and off. After a week or so the phone did not read the card at all and neither did the PC. Fortunately I backed up the content of the card after the first problem. The card worked for about a month after formatting, but ... | My phone suddenly shows an SD-card notification | android |
I am wondering how to best connect Android smartphones with Linux boxes. The best thing would be a program like Samsung's Kies, but Samsung seems to target Windows and Mac OS. Is there such an application like Kies that runs on linux natively (not wine), so the user can connect Android devices with linux boxes over USB... | You don't need any special software. On recent Linux distributions such as Ubuntu 13.04, all the right drivers for MTP are installed by default. When you plug your phone in, you get a file manager window that shows the contents of your phone. The phone appears as a normal directory, so you can drag-n-drop files, use <c... | Linux connectivity | android |
I have a Samsung Captivate Glide phone running 4.0.4 on the AT&T network. Unfortunately, I have pocket called 911 at least four times. To call 911 on my phone you have to: Activate the lock screen Swipe near the bottom of the screen on "Emergency Call" Press on the screen I think that this is how it happens: I unpl... | I added several additional emergency contacts stackexchange-url ("using these instructions"). Now 911 is just one of several numbers that can be called from the emergency call screen. I made most of the numbers "dummy" numbers that don't actually connect. While this probably won't prevent all emergency pocket calls, at... | How do I make "Emergency Call" harder to hit? I keep pocket calling 911! | android |
I want to use my phone with the google calender, but I don't want to upload all my contacts from my phone to google. How can I achieve this? I said in the contacts App under Settings that the App Synchronisation is off, but then I deleted some test-contacts online in Gmail and they were also deleted on my phone. I also... | In the syncronisation screen you have to turn Synchronisation on global. Only if that is on you have checkboxes next to each category inside the google account. you can uncheck the box at Contacts then. If the global sync is OFF you don't have this option. I think it is a bit dangerous the first time you enter that men... | Turn off syncronisation of contacts in CyanogenMod | android |
Ever since the 28th of October when DST has ended all of my events in my Google Calendar has moved one hour earlier. The web calendar shows currect dates and times but the one on my Nexus 4 is one hour early. I tried using 'Home time' in the calendar settings without success. Any ideas? | Have you tried setting <code> Automatic date & time </code> and <code> Automatic time zone </code> ? Source: Daylight Saving Time and Android: Sit back and relax | Google Calendar gone nuts since DST has ended | android |
I've just bought a Jiayu G4 and it came with android installed (rooted). My question is - how can I tell that nothing nasty has been installed on the phone? Or best practices to ensure that it's safe to use. I've had a look but I haven't seen any accounts of malware distributed Android OS's, but I'm sure it can happen.... | The bad news: You very probably can't. If the manufacturer decides to backdoor your phone's firmware, it's hardly detectable by individuals. Phones consist of many components of which only a tiny fraction is really authored by the manufacturer. Think of drivers and firmwares for various chips like the baseband, wifi, s... | Security Audit - how can I tell my Android Distribution is safe | android |
My iPod recently broke so I started using Google Play Music on my phone. It works quite well and today I discovered the widget, so I added it to my home screen. It's very useful, the only thing is that the title is cut off slightly and the whole widget seems too low. You can still clearly make out what it says but it j... | The problem lies in the number of rows on the screen. On the screenshot in the question, there are six rows designated for shortcuts and widgets. If the number of rows is reduced to five the music widget comes out as it should: Screenshot (click for larger variant) | Music player widget title cut off | android |
On a rooted device it should be possible to forbid certain apps to contact internet connection How is this possible in CyanogenMod 10.0? | An app like Root Firewall (needs root) should work. ☆ Block Internet access for any apps: | How do I withdraw an app rights to enter internet in CyanogenMod? | android |
i use roaming which is very expensive and I search some kind of script or way of solving my problem: there is a possibility to turn off checking e-mail when the android is connected via mobile data ? Any knows how to limit the transfer of mobile data to the minimum (disable apps which I do not want sync etc.) ? Thanks ... | If you go into Settings -> Data Usage you can see which apps are using the most data. It's possible to turn them off using data in the background by clicking on the app and then selecting "Restrict Background Data". See this and this for pictures and further detail. Also if it's just email you're using you can probably... | Checking mail on mobile data | android |
My HTC Evo 3D sometimes doesn't react when i press certain areas of the screen. I noticed it happens mostly on the part where the letter 'e' is, when i'm holding the phone in landscape mode. So, i did a factory reset, wiped out SD card as well during the factory reset, and the problem still persists. It sometimes happe... | Open your settings menu and go all the way to the bottom, open <code> Developer Options </code> . In the Input section, find the options called <code> Pointer Location </code> , and check it. This is a feature for developers that shows the raw data from the digitizer. Move your fingers around on the screen, and watch w... | Possible digitizer problem? | android |
I have an HTC One with Sprint, and I believe this icon appeared after the 4.3 update. I have gone through the list of apps (both running and total) but nothing appears to match up. Other friends with Android phones don't appear to have this icon, but they all root and customize 7893 ways. Can anybody identify this icon... | It means that you have NFC enabled. Some manufacturers (LG and HTC, I know for certain) have started adding an icon to let you know that you have NFC enabled since it can have potential security implications related to mobile payment systems. It would also be useful to know if you intend to use features like Android Be... | What is this N-shaped icon on my HTC One? | android |
I list all permissions of the new installed application on rooted Android device. But I want to detect when an application uses these permission. For example, I installed an app and it uses READ_CALENDAR permission. It is not always read my calendar data. I want to detect the time it reads my calendar data. Is it possi... | That should be possible. How to realize it, depends on the Android version used: For Android 4.0 and earlier, the IMHO best solution is installing LBE Privacy Guard , which you can configure to issue a popup whenever a given permission was requested (so you can decide whether to permit or deny access). However, do not ... | detect when application using permissions ~ Android | android |
I have a rooted Galaxy Tab 2 7.0 (p3113) that has worked fine for over a year. After draining the battery completely out (which I have done many times before), I plugged it in to find it stuck in a boot loop. When I plug it in over USB or a normal outlet, it shows a battery with a frozen spinning dial in the center. It... | After leaving it in the loop for days using 4 different wall adapters and a USB port, I found the wall-to-USB adapter that originally came with my device. I plugged my tablet in with that and it booted normally and started working; I don't know why that fixed it, but it did. | Charging Boot Loop on Samsung Galaxy Tab 2 7.0 | android |
I own a Samsung SCH-I545 Galaxy S4 and can not do update via Kies. It says: Software update is temporarily unavailable. Try again later. The phone is sent by my uncle from America and I am from Romania. The phone does not have root. I tried to update via Odin, but it fails too. What can I do to Update my Galaxy S4 to A... | The update for the Verizon S4 USA is set to come eout tommorrow not today. | Samsung Galaxy S4 SCH-I545 official updates via Kies fails with: "Software update is temporarily unavailable. Try again later." | android |
The stock Samsung dialer and contacts (developed by Samsung) is waaay too laggy for me to use it. Actually it takes seconds to navigate through the tabs of logs, favorites or the contact list. (Got about 10 pictures and 10 custom ringtones in 70 contacts, so there's not that much data to handle.) It was actually laggy ... | The Samsung ROM doesn't have the stock AOSP dialer and contacts app. It has Touchwiz themed dialer and contacts app. This is one of the most glitchy and slowest of dialer apps out there. Try the Swipe Dialer if you care to. It has good reviews and seems to be working fine across the board. Another option will be to por... | Set native Jelly Bean dialer and contacts for Samsung Galaxy S3 | android |
When exporting contacts from the standard contacts application to the disk and importing them to Thunderbird - the pictures are missing. I'd like to export all contacts with pictures though. Is there a way to get a 100% backup of my contacts? Where are they stored and how can I back them up? | User stackexchange-url ("@Izzy explained") that encoded pictures are actually included in the <code> .vcf </code> created from the export. This led me to think that the issue is actually with Thunbird's contacts import and not with android's contacts export. As it turns out this is right. Since the default way for Thun... | Export or backup contacts with pictures | android |
I want to watch streams of a TV channel . That channel also offers an unfree app to do that. When I visit the site with my tablet I am forced to download the app to use the site. From my PC I can access the site normally. How can I set my tablet browser to behave as a PC browser? I tried the default Android and Chrome ... | In case of Android browser (AOSP) and Chrome there is an option called Request desktop site . This can be accessed via the options menu for the browser. That would change the browser user-agent to desktop and display the website as displayed on PC. But this has to be done for each tab I believe, there is no permanent s... | Behave as a PC browser | android |
I setup my GMail account as a Google account on my phone. When email comes in I can tap the notification to go to the Gmail app. I can use S Voice to go to the Gmail app. However the Gmail app is not on the home screen. I am not using the "Email" app though. Where is it and why is it hidden? EDIT: It's in the app folde... | It's in the app folder Google. Shame on you Samsung for not making the difference between folders and apps obvious. Well the folders look like this: | Where is GMail app on Galaxy Note 3 app list | android |
How do I update the video driver for my Droid 2 Global? I have a custom Cyanogenmod installed but YouTube videos have a green bar, green tint, or are garbled. | By installing a different version of Cyanogenmod. Android is not like Windows, where you have to install each driver separately: all the drivers come integrated in the ROM. Sometimes, with third-party ROMs like Cyanogenmod, they don't quite manage to integrate the drivers properly (because only the manufacturer has all... | How do i update the video driver? | android |
In "Settings"-> "Data Usage" there is a "Restrict background data" checkbox. How does it work, exactly? What does "background" mean here? And is this setting enforced by the OS, or is it a hint that the apps stackexchange-url ("are free to disregard") if coded improperly? | First, that setting is enforced by the OS (so it's not for the app to decide whether to observe that setting). Put in easy words: Android won't let an app access the network unless it's running in foreground (i.e. the user is interacting with it) with the restriction enabled for it. Explained with a plastic example: Re... | How does "Restrict background data" work? | android |
UPDATE: This was fixed in the 4.3 update that came out for my phone lately. No need to think about it anymore, also I can't give any further details. I have a quite new Samsung Galaxy S3 4G (GT-I9305). It is running an unmodified & unrooted version of Android 4.1.2. It works mostly perfectly fine, but there is a sl... | This was fixed in the 4.3 update that came out for my phone lately. All done. | Samsung Galaxy S3 4G notification center NFC button doesn't work | android |
I close the Skype app in my Android phone (samsung s3 mini) If Skype is open on my pc and I receive a call it also starts automacically in my phone without my input! How can I avoid such a strange behavior? Thank you | Are you sure that you really closed Skype (not only hide it to background) ? In Skype main menu press "menu" button and then - logout. If that doesn't solve your problem I see two possibilities : Install a firewall (a good firewall is in avast! Mobile Security) and block access to newtork for Skype, unlock it only when... | How to stop Skype from starting automatically? | android |
How do you re-install an app without losing personal data? In this case its Plants vs. Zombies 2 that hangs when loading the game. I thought a re-install might solve the issue. But I don't want to need to redo everything I've done so far. | For the following procedure you'll need adb installed on your computer (if you're not already have that, see: stackexchange-url ("Is there a minimal installation of ADB?")). Alternatively, a terminal emulator app should do as well. Android apps are managed by the "Package manager", which as a command-line interface cal... | Re-install app without losing personal data | android |
I believe the Windows OS in general makes the Fall DST change at 3.00am on the last Sunday of October, and the Spring change at 2.00am on the last Sunday of March. Could someone enlighten me on the exact times that the Android OS, in general, (or 4.3 specifically) makes the DST changes? | As far as I know, every OS makes the change at the officially scheduled time for your timezone. This is different in different timezones, but if you've previously observed your Windows clock changing at a particular time, you'll see any other OS changing at the same time. The exact time is set by the government: progra... | What exact time do Android devices execute the Daylight Saving Changes? | android |
I wanted to use an app called TimeWise to have a timer ticking and showing how much time is left in a time-boxed task. However, I am not sure, if having the screen turned on like this (even with very low brightness ) for 25 minutes without changing its content other than the counter, cannot damage it. These 25 minutes ... | No. Both versions of the Nexus 7 use IPS LCD displays, which are not vulnerable to burn-in or other detrimental effects from displaying a fixed graphic. Burn-in in currently used display technologies is a problem limited to organic light emitting diode (OLED) displays, such as those used on the Samsung Galaxy S3 and S4... | Can I damage screen (Nexus 7) by having it turned on and not change for longer periods of time? | android |
Is there a way to (at least approximately) check if an application I have found in Google Play store would work on friend's phone. I'd rather not suggest an app that would not work on friend's phone. For example is there a way to check if an application would work on Android 2.3, when my phone has Android 4.1.2? Nowada... | Let him try installing it via Playstore. If it's "incompatible by design" (e.g. requires Android 4.x while he has only 2.3), Playstore would refuse to install it and give the hint "not compatible with your device". Apart from that (and if the app description doesn't give a clue): check the comments for hints (take care... | How to check if application on Google Play would work on other (not own) phone? | android |
Is it possible to assign an animated image to contacts in my address book? So when a person from my contacts calls me it would play an animated image instead of a static image. I have tried using animated GIFs, but it doesn't seem to work. I was wondering if there is a work-around. Preferably without having to root my ... | It simply doesn't seem possible. On Android, pictures are shown in ImageView components, and this component does not support displaying gifs. On most Android versions, you can't do it. Maybe a custom Contacts app can have the capability. | assign an animated image to contacts | android |
How say the title I can't find where the sms are stored. I see this stackexchange-url ("similar question") but the replies haven't helped me. I have gosms and I want delete all messages, but if I do this option with gosms the app crashes because are a lot of messages (about 6000). I found: <code> ./data/data/com.androi... | SMS messages are stored in <code> data/data/com.android.providers.telephony/databases/mmssms.db </code> . If you can't see it in your root explorer (or it is to small), try rebooting your device or simply - connect your phone to the computer and copy that file (using e.g. ADB) on it and I'm sure you will be able to rea... | What is the path where GoSMS stores the SMS messages | android |
I am stuck during the boot process, at first before entering the passphrase for <code> /data </code> and now at the SIM PIN screen. At this point, adb is inaccessible (normally adbd would start up after unlocking <code> /data </code> , etc.). How can I start <code> adbd </code> during boot? This is a CM 10.2 userdebug ... | Since Android 4.2.2, [USB debugging requires authentication], something that is not possible during boot. To disable this, set the following property in default.prop (inside initrd): <code> ro.adb.secure=0 </code> This enables adbd for a short time. It seems that some process is setting <code> sys.usb.config=mtp </code... | How can I enable adbd during boot on Cyanogenmod? | android |
on the android shell, when I executed following <code> >ls /sys/class/power_supply/battery </code> was expecting, current_now, power_now, charge_now or energy_now but I didn't find any *_now attribute other than voltage_now. Could anyone help me to configure kernel in order to enable these (current_now, ..) attribut... | No one answered my question, but I found the answer. I earned a badge Tumbleweed..lol Because, battery drivers do not implement the same. | Why the battery attributes are missing in android phones? | android |
Lately i'm having some problems with my HTC EVO 3D. It freezes all of a sudden, sometimes the screen doesn't respond well to touch etc, and i have to do a hard reset. Since i believe it is due to a lot of apps i've installed etc, i decided to reset everything, and do a factory reset. I don't care about the data of my a... | You're absolutely correct with your assumption a factory-reset will delete all your apps and data (as you also can find in the stackexchange-url ("factory-reset tag-wiki")). If you want to backup your contacts and SMS, I'm afraid there's no native way. While the contacts you could sync with Google, the same cannot be s... | What happens with my messages and contacts after factory reset | android |
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