[Guide] Delete fingerprint profils via TWRP

[konzi]

After restoring an backup via TWRP I had to remove/bypass lockscreen with TWRP to access my android. Still I found my fingerprint reader not working. I fixed this by deleting the fingerprint profile with TWRP.

Symptoms of the issue I had:

• Fingerprint is not working to unlock the phone. Lockscreen gives me an error about missing fingerprint hardware.
• I can't add new fingerprints. The fingerprint wizard gives me an error message "Enrollment was not completed" and closes the wizard

How to remove the pin/pattern you can find here: https://forum.xda-developers.com/android/software-hacking/remove-lockscreen-recovery-t3530008

Solution for fingerprinter:

1. Boot into TWRP
2. Go to advanced>filemanager to acces the files in your phone.
3. Enter the folder /data/system/user/0
4. Delete following files: ./fpdata/user.db, settings_fingerprint.xml
5. Reboot to system and set up new fingerprints with the fingerprint wizard
6. Everything should work normal

Hope it helps

 

[gkornaks]

Thanks!
Only works until the following reboot. So you need to go through the procedure again. Soft reboot leave the fingerprints intact. Tested on Moto G5.

 

[igoorsoouza]

Thanks a lot man! Saved myself from clean flashing on my Oneplus 5!!

 

[stats9]

Thanks!

On my HTC A9 I had the message "PIN required to enable fingerprint reader". It is an at&t a9 that I've rooted and running the unlocked developer version. I used these steps in TWRP and my fingerprint reader was fixed.

 

[gadget_boy]

Legend! Thank you for posting this! Saved me from factory resetting my HTC 10!

 

[dewille]

unfortunatley my fpdata folder is empty... but I still get this "Enrollment was not completed" when around 80% done.... It looks like the very last fingerprint touch is needed. However the whole process still looks broken because sometimes it accept when I touch next time it roll back. It didn't behave like that on stock. Is there any way to fix this problem except flash stock ? BTW I'm now on custom 7.1.2 ROM Resurrection Remix N v5.8.5

 

[appy.79]

Go to /data/system and delete locksettings.db
And then go to /data/system/users/0/settings_fingerprint.xml and delete it.
Worked for me on AEX Oreo.

 

[StarShoot97]

I sent my OnePlus 3T in for an RMA, when I received it back and restored the TWRP backup my FP was not working anymore. Tried this fix and everything is fine again
Still works after a reboot

 

[stitchyman]

thanks konzi.. couldn't remove fingerprints (lineage os 15.1 on redmi note 4 mido)
I gave root access to my file explorer app (es file explorer) and renamed those files (to .bak) and it fixed the issue for me.

 

[BlackbirdSCV]

I did as it said on OP, but it didn't work :/

 

[goldencore]

This does not seem to work under Android Pie. Only the lockscreen.db file is present, but the fpdata folder is empty and I am unable to remove old fingerprints in settings.
Any ideas.

 

[simplepinoi177]

I hate to revive an old dead thread, but I can confirm that this DOES work on Android Pie (9.0) 181005.003 October security release. Thank you so much OP!!!
One step that may have not been included is to be sure to "mount" the "data" partition or you may not be able to properly "write" and/or delete and/or display the right files...

 

[goldencore]

The user.db file didn't exist for me, but deleting the settings_fingerprint.xml solved the problem for me m

 

[K.100]

can't delete fingerprint

thanks konzi.. couldn't remove fingerprints (lineage os 15.1 on redmi note 4 mido)
I gave root access to my file explorer app (es file explorer) and renamed those files (to .bak) and it fixed the issue for me.

Hey bro! Actually I'm using dotos v2.5 on my redmi note 4 and I'm facing problem in deleting fingerprint . plz help

---------- Post added at 08:33 AM ---------- Previous post was at 08:30 AM ----------

thanks konzi.. couldn't remove fingerprints (lineage os 15.1 on redmi note 4 mido)
I gave root access to my file explorer app (es file explorer) and renamed those files (to .bak) and it fixed the issue for me.

Hey bro! Actually I'm using dotos v2.5 on my redmi note 4 and I'm facing problem in deleting fingerprint . plz help . and also can't add more because only 5 could be added .

 

[Ph@lo]

Go to /data/system and delete locksettings.db
And then go to /data/system/users/0/settings_fingerprint.xml and delete it.
Worked for me on AEX Oreo.

Thank you, this saved me from having to do a full clean install.

I confirm this worked on Android Pie (9)

 

[Cyber Akuma]

HTC 10. Not working for me. It cleared my fingerprints, but I am unable to register any new ones. It instantly claims "Fingerprint setup was cancelled. Please try again."

 

[simplepinoi177]

HTC 10. Not working for me. It cleared my fingerprints, but I am unable to register any new ones. It instantly claims "Fingerprint setup was cancelled. Please try again."

I don't know anything about the HTC's...but have you "reset-ted" or, if you have an unlocked bootloader, maybe re-flashing the Full Factory image -- I know with the Pixel's, you can reflash the Full Factory image without wiping the device...

Good luck and hope this helps...

 

[ID_Frac]

Go to /data/system and delete locksettings.db
And then go to /data/system/users/0/settings_fingerprint.xml and delete it.
Worked for me on AEX Oreo.

can confirm working on crDroid 9.0 thanks!

 

[Cyber Akuma]

I don't know anything about the HTC's...but have you "reset-ted" or, if you have an unlocked bootloader, maybe re-flashing the Full Factory image -- I know with the Pixel's, you can reflash the Full Factory image without wiping the device...

Good luck and hope this helps...

Forgot to reply earlier. Well, I am attempting to avoid doing a reset, since I just did a backup restore, resetting the phone would be counter-productive.

Regardless, I found the issue, there was a backup file for the prints too, deleting that fixed everything.

 

[mysteres]

Following what appy.79 told solved for me too... crush on lockscreen setting and deleted fingerprints all OK now