Database Info

[Q] How can I prepare a Xoom for sale?

I have a Xoom 3g (USA) that I'm about to put on craigslist; anyone know how to reset it so that it's stock (no personal info). I know that there's files on there that are not deleted if you reset it, I'm looking for something that will reset ALL of the files back to stock (like you can do with an iPhone...).
***edit: Sorry, probably should have put this into Q+A... If an admin wants to do so, that would be OK...

slack04 said:
I have a Xoom 3g (USA) that I'm about to put on craigslist; anyone know how to reset it so that it's stock (no personal info). I know that there's files on there that are not deleted if you reset it, I'm looking for something that will reset ALL of the files back to stock (like you can do with an iPhone...).
***edit: Sorry, probably should have put this into Q+A... If an admin wants to do so, that would be OK...
Click to expand...
Click to collapse
Technically you should have put it lol..
but before you get flamed... this is how:

factory reset and hook it up to the computer then delete every folder/file off it.

Kippui said:
factory reset and hook it up to the computer then delete every folder/file off it.
Click to expand...
Click to collapse
I don't think I can delete "every file and folder" can I? Won't that mess up the Xoom?

slack04 said:
I don't think I can delete "every file and folder" can I? Won't that mess up the Xoom?
Click to expand...
Click to collapse
Just reflash the stock images and erase userdata

slack04 said:
I don't think I can delete "every file and folder" can I? Won't that mess up the Xoom?
Click to expand...
Click to collapse
no, you dont have access to files that are crucial to the xoom functioning correctly through the pc. If u dont want to mess with adb and img files then do my method. It's the same way like cellphones, you can delele everything off your sd card and the phone will still function.
I just checked nothing of importance is on the /sdcard folder so u can delete away. You don't have access to /sys or folders like that.

Yea thats another simple way to do it. Just remove all synced accounts and user installed apps, go into the sdcard folder and clean up the cache and program data folders there.

same question
I did all of the options available in recovery, and there is still data on the unit.
0/
legacy/
obb/
is my file structure.
I can't believe there's no way to wipe this thing (like new from the store) so I can pass it along.
Any ideas would be appreciated.
I'm good to use ADB or fastboot if needed.

cwizardtx said:
Yea thats another simple way to do it. Just remove all synced accounts and user installed apps, go into the sdcard folder and clean up the cache and program data folders there.
Click to expand...
Click to collapse
actually, that doesn't do it. I bought a LTE xoom from a UK buyer who did that, and when I installed MXplayer, I was greeted with some lovely videos...
best thing to do to reset a xoom for resale is described in the link below:
http://www.addictivetips.com/mobile/how-to-restore-and-relock-a-motorola-xoom-tablet/
this will completely reset the device to factory standards.

Some wiping steps in this thread..........link

your link
rvbarton said:
actually, that doesn't do it. I bought a LTE xoom from a UK buyer who did that, and when I installed MXplayer, I was greeted with some lovely videos...
best thing to do to reset a xoom for resale is described in the link below:
http://www.addictivetips.com/mobile/how-to-restore-and-relock-a-motorola-xoom-tablet/
this will completely reset the device to factory standards.
Click to expand...
Click to collapse
Thanks for link very good

Unlocking/relocking the bootloader should do it. You could do fastboot commands to wipe each partition I guess too.
Sent from my Xoom using Tapatalk HD

[Q] Lockscreen pin removal - as per posted hack

Hi All,
I've been having a nightmare with my phone, my PIN lockscreen wont accept my pin number on my S2. Now before you think i've nicked it check my posting history on the S2 forums, you'll see i've been posting there for a while.
I've CAN access the phone by removing settings.db, from
/data/data/com.android.providers.settings/databases/settings.db
the lockscreen request dissapears then, but it wont let me create a new pin as it still thinks a pin is set.
I've followed this thread:-
http://forum.xda-developers.com/showthread.php?t=1409304
regarding removing a pin, but when i try to reset my pin it wont take it, or more to the point it does take the values (i checked them using an SQL browsing tool) but it still asks me for a pin.
Reformatting System, Cache and Data via clockwork mod recovery and flashing 2different roms didnt help either as the pin screen keeps coming back for some reason.
Would anyone know if flashing back to stock via Odin would help, does that Wipe the phone completely? Or even better, anyone know why this is happening and prevailing between wipes?
The only thing i havent tried yet is wiping /emmc/ (internal memory card) and trying again.
I've been at this for 2 days now, can anyone shed some light on this?

Ok as per above a follow up:-
I have fixed this by removing cryptlockscreen* files in EFS. I can also now enter new pins or patterns etc as before.
The is a problem however when i try to create a new pin, it takes it and everything looks ok, but when i try to enter my pin on the lockscreen again it still wont take it and i have to do the same process again. (Wipe out the relevant files in EFS)
I've been able to secure my device simply by using a pattern lock instead but its not an ideal solution.
Does anyone know why, after deleting the files above i should STILL have an issue?
Remember, this went from working perfectly to not, possibly due to wavesecure and it would be good to get to the bottom of this.

TheBlueRaja said:
Ok as per above a follow up:-
I have fixed this by removing cryptlockscreen* files in EFS. I can also now enter new pins or patterns etc as before.
The is a problem however when i try to create a new pin, it takes it and everything looks ok, but when i try to enter my pin on the lockscreen again it still wont take it and i have to do the same process again. (Wipe out the relevant files in EFS)
I've been able to secure my device simply by using a pattern lock instead but its not an ideal solution.
Does anyone know why, after deleting the files above i should STILL have an issue?
Remember, this went from working perfectly to not, possibly due to wavesecure and it would be good to get to the bottom of this.
Click to expand...
Click to collapse
You cannot do this. You need to extract the password salt to quickly brute force such a thing. Use adb to extract data for sqlite. If rooted attempt a factory reset in recovery. Seriously this is some forensics stuff.
Good luck.

Recover datas after rooting my O+7 pro

Hi,
i had root my O+7 pro and didn't seen the warning that it's wip datas ...
is there any way to recover theme?
Thanks a lot in advance

You can try disk recovery from the play store and give it root permissions, but I can't say if it will recover anything. But to be fair, there were warnings given when unlocking the bootloader, etc about the wiping of data. So possibly a hard lesson learned

Always backup... Backup... Backup... Even if just doing an update. Since you are rooted now I would get titanium backup and do a backup before any update or flashing that u r not comfortable with and back up to Google drive or push to an OTG also back up ur sdcard files by manually moving to an OTG or use twrp to backup data to an OTG... Preferably before u set a pass code or pin securities. Hope u can recover bud.

i'll try the first solution.
in all the case i'll use a good backup solution after that. and i know, i usualy alaways backup but idn, this way my brain had decided it was useless *facepalml*

hallo dare said:
You can try disk recovery from the play store and give it root permissions, but I can't say if it will recover anything. But to be fair, there were warnings given when unlocking the bootloader, etc about the wiping of data. So possibly a hard lesson learned
Click to expand...
Click to collapse
can't find the app, sorry but do you have the link of the app you have in mind?
thanks a lot for your help in all the cases :good: :highfive:

Zeirman said:
can't find the app, sorry but do you have the link of the app you have in mind?
thanks a lot for your help in all the cases :good: :highfive:
Click to expand...
Click to collapse
https://play.google.com/store/apps/details?id=com.defianttech.diskdigger

hallo dare said:
https://play.google.com/store/apps/details?id=com.defianttech.diskdigger
Click to expand...
Click to collapse
Already tried DiskDigger pro (root allowed), and only finded some icone in JPG and PNG, a blank TIF, 16 .zip, and thousands of SQLITE files (don't know what it is)... i had guess it hadn't work
Any other idea? (and thanks a lot again for your help!)

Zeirman said:
Already tried DiskDigger pro (root allowed), and only finded some icone in JPG and PNG, a blank TIF, 16 .zip, and thousands of SQLITE files (don't know what it is)... i had guess it hadn't work
Any other idea? (and thanks a lot again for your help!)
Click to expand...
Click to collapse
Think you're out of luck.

hallo dare said:
Think you're out of luck.
Click to expand...
Click to collapse
No other idea? even through adb or a soft, even not free solution? :/

i don't understand why nothing work
i had almost writte no data since i had root, and my phone has 256Go
even by writte a little with the root process and install 3 app, i couldn't writte 256Go so... why nothing work? why realy no data is found? that's not strange? :/

Maybe you can dumb and pull your userdata partition to an .img file via adb to your pc and then use softwares like recuva to recover data on windows, i don't guaranty it will work , but it's Worth the shot, i tried it one time when i had the OPO (i changed to f2fs partition without backing up and lost everything) annnnnnnndddddd...... no i found nothing lol, but maybe you can find since it's a different type of format i guess" but worth a try

Chinaroad said:
Maybe you can dumb and pull your userdata partition to an .img file via adb to your pc and then use softwares like recuva to recover data on windows, i don't guaranty it will work , but it's Worth the shot, i tried it one time when i had the OPO (i changed to f2fs partition without backing up and lost everything) annnnnnnndddddd...... no i found nothing lol, but maybe you can find since it's a different type of format i guess" but worth a try
Click to expand...
Click to collapse
i had try this tutorial: https://howtorecover.me/data-recovery-internal-storage-android-phone-guide
but the list_of_partitions.txt file is blank, no matter if i do it from the phone or computer

Zeirman said:
i don't understand why nothing work
i had almost writte no data since i had root, and my phone has 256Go
even by writte a little with the root process and install 3 app, i couldn't writte 256Go so... why nothing work? why realy no data is found? that's not strange? :/
Click to expand...
Click to collapse
There is no data found because it is encrypted.
All phones that ship with Android 6 or higher have user data encrypted by default from first boot, without the user enabling encryption.
This is intentionally designed to protect against data recovery by an attacker.
Even if you don't use a PIN or password, Android creates a random encryption key to secure the data. When the phone is wiped the keys are deleted making it difficult to recover data without said keys.

KemikalElite said:
There is no data found because it is encrypted.
All phones that ship with Android 6 or higher have user data encrypted by default from first boot, without the user enabling encryption.
This is intentionally designed to protect against data recovery by an attacker.
Even if you don't use a PIN or password, Android creates a random encryption key to secure the data. When the phone is wiped the keys are deleted making it difficult to recover data without said keys.
Click to expand...
Click to collapse
I understand better now!
that's a good news that people can't recover datas from a second hand phone
but... does it mean it's impossible for me? 0% chances? or is there a maybe complicated but possible way?

Zeirman said:
I understand better now!
that's a good news that people can't recover datas from a second hand phone
but... does it mean it's impossible for me? 0% chances? or is there a maybe complicated but possible way?
Click to expand...
Click to collapse
Not possible. The encryption keys are protected by what is called hardware-backed encryption. The Snapdragon chip binds the keys to a specific device so the data can't just be copied to a computer and recovered. It would take a major security flaw (that hasn't already been patched) to get through this system.
It is designed to be very secure. It is also used to protect fingerprint data and Netflix DRM.

KemikalElite said:
Not possible. The encryption keys are protected by what is called hardware-backed encryption. The Snapdragon chip binds the keys to a specific device so the data can't just be copied to a computer and recovered. It would take a major security flaw (that hasn't already been patched) to get through this system.
It is designed to be very secure. It is also used to protect fingerprint data and Netflix DRM.
Click to expand...
Click to collapse
You don't give me good news but at least i know why i can't recover theme
Thanks a lot for your help!

Pixel is stuck at "Pixel is starting"

My bootloader-unlocked Google Pixel runs Android Pie and it uses file-based encryption. Both system partitions are unmodified.
In an effort to get TWRP to successfully decrypt my Pixel's encrypted data, I performed a combination of:
Renaming these files (i.e., appending .bak to their names):
Code:
/data/system/gatekeeper.password.key
/data/system/gatekeeper.pattern.key
/data/system/locksettings.db
/data/system/locksettings.db-shm
/data/system/locksettings.db-wal
Copying the files back to their original names.
Setting and removing a lock pattern/password/PIN.
Now, my Pixel does not move past the "Pixel is starting" page. I can access Settings, but I have no access to my applications and files. How do I fix this so that I can get it to move past "Pixel is starting"?

I once ran into this issue, it has something to do with fingerprint and encryption, somehow it unlocks but it won't decrypt.
The only solution I've found is to wipe the device. Since you can power on the device, I suggest you to backup what you can with adb or from twrp, and do an advanced wipe, with even "format data" enabled (warning: you lose also /sdcard files), then reflash the stock factory image from fastboot.
This should remove the corrupted lock files and set it up like new.

TENN3R said:
I once ran into this issue, it has something to do with fingerprint and encryption, somehow it unlocks but it won't decrypt.
The only solution I've found is to wipe the device. Since you can power on the device, I suggest you to backup what you can with adb or from twrp, and do an advanced wipe, with even "format data" enabled (warning: you lose also /sdcard files), then reflash the stock factory image from fastboot.
This should remove the corrupted lock files and set it up like new.
Click to expand...
Click to collapse
Hang on. Did you skim my post? I'm trying to get it to decrypt or, if the decryption is not the problem, just get past "Pixel is starting" and get to my things on it. Wiping it won't fix that!
Fingerprints are not used to decrypt the device.

Bump.

Anyone else? What could be the cause of this? Would it give an error message if it couldn't find the right files?

TENN3R said:
I once ran into this issue, it has something to do with fingerprint and encryption, somehow it unlocks but it won't decrypt.
The only solution I've found is to wipe the device. Since you can power on the device, I suggest you to backup what you can with adb or from twrp, and do an advanced wipe, with even "format data" enabled (warning: you lose also /sdcard files), then reflash the stock factory image from fastboot.
This should remove the corrupted lock files and set it up like new.
Click to expand...
Click to collapse
Are you there?

TENN3R said:
I once ran into this issue, it has something to do with fingerprint and encryption, somehow it unlocks but it won't decrypt.
The only solution I've found is to wipe the device. Since you can power on the device, I suggest you to backup what you can with adb or from twrp, and do an advanced wipe, with even "format data" enabled (warning: you lose also /sdcard files), then reflash the stock factory image from fastboot.
This should remove the corrupted lock files and set it up like new.
Click to expand...
Click to collapse
Were you able to recover your data?

Bump.

Unfortunately not. I just wiped the device, maybe there is some way but I really don't know. Wiped and setup again

Bump.

Bump.

Someone please help.

Master Melab said:
Someone please help.
Click to expand...
Click to collapse
Wipe your phone maybe.

what is wrong with you all you needed to do to decrypt in twrp is disable your lock screen security, none of this other bull**** lmao.

Please help.

SnowFuhrer said:
Wipe your phone maybe.
Click to expand...
Click to collapse
That won't achieve the desired result as I'm trying to recover my data.

sudoxd said:
what is wrong with you all you needed to do to decrypt in twrp is disable your lock screen security, none of this other bull**** lmao.
Click to expand...
Click to collapse
First, I got into this mess by trying to get that to work. Second, how is this a solution?

Master Melab said:
First, I got into this mess by trying to get that to work. Second, how is this a solution?
Click to expand...
Click to collapse
it is a solution, unless there is something wrong with your phone which is caused by an entirely different issue, to access your data in twrp all you needed to do was disable your lock screen security

Unfortunately I don't think there's a way you can do it. The issue the OP is facing is that the system is unable to decrypt your user data at all, regardless of whether or not you are in TWRP or Stock Android, Stock Recovery, etc.
Trying to read between the lines on the AOSP File-based encryption https://source.android.com/security/encryption, your data is always encrypted - regardless of whether or not you have some security set (pin, password, etc). It's just a matter of whether or not the pin etc is part of the metadata used in the decryption. When you altered the security files that stored the information, you lost the ability to decrypt (probably the files have additional information that is passed with your pin to unlock the encryption keys). Removal of the files needed to be done within the system by removing the security, not by removing the files whilst it is encrypted. (Sorry if this isn't exactly what happened, it's hard to tell the exact sequence of events from the OP, i.e. whether or not it was all done in system, and when reboots were done.)
I did something like this before, and got the same result. Sorry but you'll have to rely upon the latest Google backups you had...

NZedPred said:
Trying to read between the lines on the AOSP File-based encryption https://source.android.com/security/encryption
Click to expand...
Click to collapse
I've tried, but I am unable to follow all of it.
NZedPred said:
your data is always encrypted - regardless of whether or not you have some security set (pin, password, etc). It's just a matter of whether or not the pin etc is part of the metadata used in the decryption.
Click to expand...
Click to collapse
I'm aware of that.
NZedPred said:
When you altered the security files that stored the information, you lost the ability to decrypt (probably the files have additional information that is passed with your pin to unlock the encryption keys). Removal of the files needed to be done within the system by removing the security, not by removing the files whilst it is encrypted. (Sorry if this isn't exactly what happened, it's hard to tell the exact sequence of events from the OP, i.e. whether or not it was all done in system, and when reboots were done.)
Click to expand...
Click to collapse
The files I touched have nothing to do with decryption, only unlocking.
NZedPred said:
I did something like this before, and got the same result.
Click to expand...
Click to collapse
Could you please explain what you did?

Asking for help Blu G90

Forgive if I put this in the wrong section.
Q: my father recently passed away and I'm trying to recover some data that is on his phone. I physically have his phone. Blu G90. Is there a way to bypass or disable the native pin lock?
Usb debug not enabled. Default set to charge only for pc.
Pretty sure wipe at 15 is set so can't brute force.
I have a couple of forensics applications that can see it when it goes to bootloader but then they crash as soon as I try to grab an image or mount /system.
I'm literally begging for any assistance I can get.
Thanks in advance

AntiMatter2112 said:
Forgive if I put this in the wrong section.
Q: my father recently passed away and I'm trying to recover some data that is on his phone. I physically have his phone. Blu G90. Is there a way to bypass or disable the native pin lock?
Usb debug not enabled. Default set to charge only for pc.
Pretty sure wipe at 15 is set so can't brute force.
I have a couple of forensics applications that can see it when it goes to bootloader but then they crash as soon as I try to grab an image or mount /system.
I'm literally begging for any assistance I can get.
Thanks in advance
Click to expand...
Click to collapse
Since the device is locked (bootloader locked) so the permissions to change/modifiy/copy something into phone cannot obtain the internal storage files.
Only unlocking bootloader and for it is need format phone as internal storage so the device erasing all files. The pin lock can remove with adb-fastboot commands or TWRP.
But again, with locked bootloader, without chance to have internal files.

DragonPitbull said:
Since the device is locked (bootloader locked) so the permissions to change/modifiy/copy something into phone cannot obtain the internal storage files.
Only unlocking bootloader and for it is need format phone as internal storage so the device erasing all files. The pin lock can remove with adb-fastboot commands or TWRP.
But again, with locked bootloader, without chance to have internal files.
Click to expand...
Click to collapse
thanks for the reply. i was afraid of that. even after factory reset, if i root, theres a chance at partial data recovery? or is it completely gone?

AntiMatter2112 said:
thanks for the reply. i was afraid of that. even after factory reset, if i root, theres a chance at partial data recovery? or is it completely gone?
Click to expand...
Click to collapse
You can try an official unlock. Maybe it can have some result or maybe not. Trying is the attitude.
Write Google support and try to legally show some death certificate and supporting documents over your father's phone number. Write down the situation and wait for some response from them.
The only practical way would be to try a backup of the internal partition. But it depends on your knowledge with Smart Phone Flash Tool. Also you must know how to "cut" the file in the right parts.
There would be a very small possibility of restoring the internal files with a backup of userdata or in its entirety (called ROM_1).
The next step would be to unlock the phone, install TWRP and restore the file made from userdata.
Perhaps at that point you have a 1% chance of removing the PIN and booting the device without a password.
But this should only be done if Google gives you a negative answer.
Another way is with carrier company. But I think help in nothing.
Understand that despite having a userdata file with PIN, there is encryption involved and that is what makes the whole process difficult.
I know the TWRP made for BLU G90 has active decryption. But I don't know how it will behave with a userdata file made with stock ROM.
Unfortunately there is no guarantee that files like photos, docs, etc can be in userdata as this refers to internal storage. Already userdata is in ROOT storage.
So even if there is an application or software capable of restoring files, there is also the possibility that it will not be successful or have corrupted files. This will depend on your choice and risk carrying out the process.

DragonPitbull said:
You can try an official unlock. Maybe it can have some result or maybe not. Trying is the attitude.
Write Google support and try to legally show some death certificate and supporting documents over your father's phone number. Write down the situation and wait for some response from them.
The only practical way would be to try a backup of the internal partition. But it depends on your knowledge with Smart Phone Flash Tool. Also you must know how to "cut" the file in the right parts.
There would be a very small possibility of restoring the internal files with a backup of userdata or in its entirety (called ROM_1).
The next step would be to unlock the phone, install TWRP and restore the file made from userdata.
Perhaps at that point you have a 1% chance of removing the PIN and booting the device without a password.
But this should only be done if Google gives you a negative answer.
Another way is with carrier company. But I think help in nothing.
Understand that despite having a userdata file with PIN, there is encryption involved and that is what makes the whole process difficult.
I know the TWRP made for BLU G90 has active decryption. But I don't know how it will behave with a userdata file made with stock ROM.
Unfortunately there is no guarantee that files like photos, docs, etc can be in userdata as this refers to internal storage. Already userdata is in ROOT storage.
So even if there is an application or software capable of restoring files, there is also the possibility that it will not be successful or have corrupted files. This will depend on your choice and risk carrying out the process.
Click to expand...
Click to collapse
Thanks for the reply. Google was pretty useless. They told me to contact Blu and Blu said to contact Google. I successfully hard reset and root. Went through setup to try a restore from his drive backup and it wanted the unlock pin in order to restore. Google was again quite useless. Since this is a matter if his estate i served Google with a notice of preservation on the backup, since it expires pretty soon. I'm going to try next to roll back to an older version, before the unlock pin requirement to restore Google backup. Grabbed a cellebrite image earlier so I can mess around with it later tonight. I'm hoping that because of the unlock requirement that the pin file is still there after reset.