28
votes
Accepted
Security on a Nexus 6P purchased on Ebay
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 ...
- 41.3k
16
votes
Factory reset Android using ADB
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.
...
- 3,257
12
votes
Accepted
What fastboot erase actually does?
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 ...
- 41.3k
10
votes
Accepted
How to make a complete factory reset, without anyone being able to retrieve my data?
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 / ...
- 21.2k
10
votes
How much does a factory reset help in hiding a device's identification details?
In all likelihood, simply changing the IP address will be sufficient. Banning someone from a website is a little silly and largely pointless because it is trivial for someone to bypass that ban. It'...
- 4,768
9
votes
How to bypass Factory Reset Protection (FRP) or "Verify your account" screen?
Use this code to unlock in an emergency call: *#812#. After calling it, 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,...
- 233
8
votes
Will I lose my phone number and phone plan with factory reset?
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 (...
- 21.2k
7
votes
What are the meaning of each category under WIPE menu in TWRP?
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 ...
- 6,217
7
votes
Accepted
I factory reset my hudl2, and now it "can't connect to the Internet"
I've managed to work around this for a Hudl 1 by setting the date to before 26 June. I had to escape the set-up wizard and then find a way to get into the settings app. I don't know if a similar set ...
- 86
7
votes
Security on a Nexus 6P purchased on Ebay
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 ...
- 1,521
6
votes
Would my phone have to be reactivated after factory reset?
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 ...
- 321
6
votes
Does factory reset wear out UFS storage?
A factory reset is nothing you have to worry about in terms of flash wear out.
Modern Android devices do encrypt all user data by default, even if you have not set-up a lock screen pattern/PIN/...
- 21.7k
5
votes
Accepted
Is my Android device booting into a "stealth" partition?
Seems I’ve found the answer at https://andi34.github.io/faq.html
Quote:
I can't change my rom, wipe / format doesn't work. Nothing changed after flashing with Odin.
16 GB Tab 2 have a known ...
- 211
5
votes
Will I lose my phone number and phone plan with factory reset?
The quick answer is "No, it doesn't effect your plan or phone number".
Note: Factory reset is just a clean up process which includes permissions to clean and reset everything within device to it's ...
- 906
4
votes
How to read the data of a SD card configured as "Internal Storage"
You don't... if the SD card was encrypted adopted storage, and you removed it and factory reset the phone then you have lost all possibility of accessing any information on the SD card. You are better ...
- 6,217
4
votes
Accepted
Difference Soft Reset/Hard Reset
Soft Reset is simply powering your phone off and on by using power button - no data is lost
Hard Reset is forcibly stopping the power to phone by removing the battery ( if the battery is user ...
- 41.3k
4
votes
Accepted
How can I factory reset a European Huawei phone in China without access to Google?
To reach Google and proceed with the next steps, you need to set up a PC that's capable of penetrating through that wall (e.g. with VPN), and make it a proxy server on the local network for your phone ...
- 9,617
4
votes
Is there some documentation how exactly does the Factory Reset Protection (FRP) works?
I think much of this is intentionally kept "quiet"... in researching some of this myself a while back, this is the most I could find "in detail".
https://github.com/intel/kernelflinger/blob/master/...
- 6,217
4
votes
Should Factory Reset return the phone to the original version Android installed on it?
Factory reset only delete user data (userdata partition) and restore settings to the default values, meaning every settings will be restored to the factory state. This doesn't apply to the system, (...
- 3,257
4
votes
Unroot hacked Xiaomi Poco C40
If your phone is indeed rooted, it must have its bootloader unlocked. You can restore its factory state from fastboot if bootloader is unlocked.
WARNING: you will lose all data
write down your MI ...
- 4,259
4
votes
Do photos survive a factory reset (Android)?
I sold my old Oreo but I'm paranoid. I had about twenty old photos
(nothing special) and I deleted them, even from the trash. Then
factory reset.
That should be enough. As explained on security.SE:
...
- 386
3
votes
Accepted
Lost pin, no Google account, can I factory reset?
I think you misunderstand what it is saying here... It is referring to FRP (Factory Reset Protection) which is a method of protecting the phone from unauthorized access by third parties when it is ...
- 6,217
3
votes
Accepted
Can an Android device be remotely factory reset using any email ID on the device?
Yes, with Google's Find My Device, you can locate, lock, and ERASE, the phone. So anyone who has access to the accounts connected to your phone is able to erase all your data.
It's made for cases of ...
- 2,549
3
votes
Accepted
Factory reset protection (FRP) verification
According to Samsung support, FRP is automatically enabled when you set up at least one Google account. If you still want to check it's status manually, you will need to enter Download mode. To do ...
- 152
3
votes
Should Factory Reset return the phone to the original version Android installed on it?
Is this normal
Yes. See answers here and the linked dupe question Upgraded my phone from 1.6 to 2.2 Android version, if I restore "Factory Settings", which version it will be?
Is there a ...
- 41.3k
3
votes
Does an Android Factory Reset also clear the cache partition?
Yes, a factory reset clear's the cache, dalvik cache, along with the user data.
<string name="factory_reset1">Wipes Data, Cache, and Dalvik</string>
The information on factory reset is ...
- 2,628
3
votes
Google account was hacked: how do I get my phone working with my new account?
The hindsight version:
Factory reset protection is supposed to prevent thieves from stealing your phone and using it. To do this, the phone requires you to login with a Google account that was on the ...
- 4,231
3
votes
Accepted
Factory reset, will the os revert?
A factory reset deletes all the userdata that has been stored by the user and apps, including your personal files in internal storage.
A factory reset does not make any changes to the system and boot ...
- 25.3k
3
votes
How to create a backup image (*.ab) of Android Device that is not booting up?
The approach you are taking is not worth it for you simply because:
USB debugging needs to be enabled beforehand for using any adb command on a device. Since your mother probably would have never ...
- 25.3k
Only top scored, non community-wiki answers of a minimum length are eligible