29

There are full guides for several devices from RootJunky on YouTube. This first method works on some Samsung and LG devices. Your user can probably start at step 4. Reboot into Recovery mode (hold Home, Volume Up, and Power, releasing Power when you see the device turn on/reboot). Perform a Factory Reset (press Volume Down until wipe data/factory reset is ...


28

Theoretically, a factory-reset wipes data only while any deep seated malware that injects itself into the /system partition isn't wiped. To that extent you have a valid concern. Fortunately, you have a Nexus device. Google provides factory images for Nexus/Pixel devices (here). You can flash the factory image for your device following instructions on that ...


16

It is a Spam and it has nothing to do with your Mobile phone. There are many websites out there that use these tactics to persuade users to click on malicious link. Please do not click on "Remove risks now" Avoid visiting such links as much as possible Also, install Adblock plus As of the website, Scamadviser (it reports on the safety of web sites by ...


16

System updates overwrite /system. Factory reset wipes /data and /cache but doesn't touch /system. Simple as that.


10

If you've already allowed Google Backup to backup your apps, then changing settings before you do the factory reset won't make any difference. After the factory reset, when you next start the device, it'll go through the first-time setup steps again: where it guides you through connecting to a Wi-Fi network and signing into a Google account. On the screen ...


10

A factory reset reformats the phone's user-data partition, but it's not a "secure" wipe; it doesn't overwrite everything with zeroes. If you want to be sure everything is erased, you can encrypt the phone first (which overwrites all the data with encrypted versions of itself), then do a factory reset (which sets up a new unencrypted filesystem). (Update: ...


10

This thread on XDA has a post ....what is the aim of the "fastboot erase modemst" command? Answer modemst1 and modemst2 are storage partitions for Radio Firmware .... - and it's obviously a recommended practice to wipe these partitions when flashing a newer Radio Firmware This XDA thread is all about fastboot commands fastboot erase system ...


9

You need: Minimal ADB & Fastboot which contains ADB executable then unzip the file ADB drivers and install them A computer Steps: Open the folder where Minimal ADB & Fastboot is, launch it. Now on your phone, enable USB Debugging, then connect to the computer. On the terminal window, type adb devices [press enter]. You should see something like: ...


8

I found another solution: Have a look at /data/system/uiderrors.txt. There you will find the apps that are responsible for the trouble. You can delete them (manualy if necessary) to fix the issue. Reinstalling the apps brings the error back, though.


8

Use this code to unlock in emergency call: *#812# It worked beautifully on a OnePlus2 just two days ago: After calling *#812#** the phone unlocked and I was shown the home screen. After that I went to the setting and added a new Google account. Since then the phone works perfectly and thus is absolutely safe. If you have the same problem, just try it. If ...


7

"Device Protection" or "Factory Reset Protection" added in Android 5.1 can prevent your device from being usable by a thief even if they factory reset it. Essentially, it keeps the device locked after a factory reset until you enter the Google Account credentials that were on it before the factory reset, locking out the thief (unless they know your account ...


7

Install the Mobile MTK Engineering Mode app. This will only work on devices with a Mediatek chipset. This Application allow you to run Advanced Setup from Engineering Mode Menu of MTK phones, also called SERVICE MODE Other apps which can show the MTK Engineering Mode Menu will probably work too. If you can't find or don't know your phone's IMEI, then ...


7

If you thoroughly checked that nothing was left, that's a strange thing indeed (and I cannot imagine it returned "by itself"). But as a factory-reset usually only deletes/wipes /cache and /data, the SDCard (internal or external) are not touched in this process, so you might have missed that. Some devices offer to include the SDCard with the wipe/factory-...


7

The best way I know (using CM11 as a reference) is to go to Settings -> Backup & Reset and removing the checkmark next to Auto Restore. It may be under another heading on different ROMS so you may need to look around for it. It is best to do this before you do the factory reset.


7

There isn't an easy way, but still, it might be possible. The keyword to it is File carving (find some more links on this topic in our data-recovery tag-wiki). Make sure to not have any modifications/changes going on on your device, or at least as few as possible! Each change (written file etc.) lowers your chances of a successful recovery. A crucial pre-...


7

You can go to the ClockWorkMod Recovery by pressing VolumeUp+Power+home button (For devices that have physical home buttons. Yours does!) In that you have the option to do factory reset/wipe data. Also don;t forget to wipe dalvik cache. That way your phone will reset to CyanogenMod factory default. However if you want to restore to Samsung Factory default ...


7

No, there is not (or there shouldn't be). Factory Reset Protection uses a protected storage area located at /dev/block/*/by-name/frp that can't be wiped without special privileges or initiating a Factory Reset from Settings. If the user was able to root the device they could manually launch Settings via adb and do the reset themselves, but rooting is ...


7

Yes there is, after the phone is opened and SetupWizard is on, starting with top-left corner of the screen, all corners must be tapped once, in a clockwise direction. (Top left, top right, bottom right, bottom left to be more specific) It can be hard to do it properly at first try so if it doesn't work, just try again. Here's a walkthrough video.


7

No. Factory reset erases data stored on /data partition of your phone. It includes your preferences (what you set in Settings app), user apps and their settings/data, system apps' settings/data (including contacts and messages) and personal data stored on /sdcard including pictures, videos and some apps' data (like WhatsApp stores media and messages backup ...


7

HOW DELETED DATA IS RECOVERED? Data (un)deletion strongly depends on how a storage media (HDD, SSD, eMMC etc.), filesystem (NTFS, FAT32, ext4 etc.) and OS save and delete files. File carving / signature search / content-aware recovery identifies standard signatures values in the headers of deleted files (as file command and antivirus programs do to ...


6

You should be able to wipe via the recovery however, this will wipe all the data on the device including contacts, apps, pictures and videos. Turn the power off. If your HTC Desire is frozen, pull the battery out and reinsert it Hold the Volume Down button Press and release the Power button You are now presented with a menu that allows for Fastbook, ...


6

Titanium Backup users can also go to the batch actions and select manipulate data > remove orphaned files. As user48823 mentioned, you can also find the apps in /data/system/uiderrors.txt using a root-capable file explorer, but basically Titanium will do this for you, if you select the action I wrote above. Just fixed it this way on my OnePlus One (...


6

The answer is almost certainly yes. Someone could probably get past it in one way or another. (They could probably just use odin on a samsung device for example. Though I have never done something like that myself.) If you have sensitive data on there then a remote wipe might be the best thing. Did you report it stolen with your carrier? They could ...


6

Though you don't want to make a full backup, you might still wish to take a look at Full Backup of non-rooted devices to get an idea what is possible. That page also mentions some helpers for your issue: Simple Backup runs from your computer and, as the screenshots indicate, can also be used to backup a single app (so you could use it for each app you want ...


6

In your question, reactive might have two meanings: Reactivation/registration is a process which is one time, at the time you purchased a device inserted your carrier SIM to make handset useable. It sends a message to the Device Company that this device is now active and registered.( This process is one time, your carrier may charge this message as per your ...


6

There is only one difference — on Lollipop and higher, a factory reset from Settings will remove Factory Reset Protection from your device. It will ask you to enter your device and/or Google Account password in order to verify that you are the owner of the device. Resets from Recovery do not remove FRP since they can be initiated by anyone, such as a ...


6

I am not sure how much more self explanatory this can be... Dalvik / ART Cache - This is the runtime cache, where executable binaries are stored (after APK files are "optimized"). It is a unique partition of the system Cache - /cache partition, where temporary data is stored. These (numbers 1&2) are wiped on any clean or dirty flash of a ROM, or if ...


6

In addition to the accepted answer, by flashing the official image and applying bootloader lock you have 100% spyware-free guarantee. This because Android devices with a locker bootloader won't boot if the boot loader is not genuinely signed by the manufacturer, and the public key is buried in the firmware.


5

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). What a factory reset usually does is, ...


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