So yesterday I did my first TWRP restore. Restore worked fine, device booted without issues to the lockscreen.
Lockscreen was protected by fingerprint.
To my surprise, none of my fingers were detected. Strange I thought, but hey, thats what the backup password is for.
So I entered the backup password and ... the device unlocked.
So, no big deal I thought, somehow the fingerprint data got scrambled in the restore process but the password worked.
Next step: Disable Fingerprint lockscreen / Relearn fingerprints.
Of course here I have to authenticate myself again with fingerprint (not working of course) or the backup password.
To my surprise, the device does not accept the backup password when entered in the fingerprint settings...
Uh Oh, I now thought. Well, I CAN unlock my device but entering the backup password every time is kind of annoying.
As I found no solution on how to disable the fingerprint lockscreen I was forced to factory reset the device (strangely enough during factory reset I was again asked for the backup password and it was accepted in this dialog).
So, as a warning, disable your fingerprint lockscreen before making a TWRP/CWM backup.
If someone has a tip on how I could have avoided a factory reset, I would be grateful to learn more...
Gandhi70 said:
So yesterday I did my first TWRP restore. Restore worked fine, device booted without issues to the lockscreen.
Lockscreen was protected by fingerprint.
To my surprise, none of my fingers were detected. Strange I thought, but hey, thats what the backup password is for.
So I entered the backup password and ... the device unlocked.
So, no big deal I thought, somehow the fingerprint data got scrambled in the restore process but the password worked.
Next step: Disable Fingerprint lockscreen / Relearn fingerprints.
Of course here I have to authenticate myself again with fingerprint (not working of course) or the backup password.
To my surprise, the device does not accept the backup password when entered in the fingerprint settings...
Uh Oh, I now thought. Well, I CAN unlock my device but entering the backup password every time is kind of annoying.
As I found no solution on how to disable the fingerprint lockscreen I was forced to factory reset the device (strangely enough during factory reset I was again asked for the backup password and it was accepted in this dialog).
So, as a warning, disable your fingerprint lockscreen before making a TWRP/CWM backup.
If someone has a tip on how I could have avoided a factory reset, I would be grateful to learn more...
Click to expand...
Click to collapse
Hi there, I have same bad experience with it, even worse !
after reading your post I've trying to prepare myself so I turned off the screen lock fingerprint security and full of happiness flashed new rom, then I've noticed all my data moved before to PRIVATE disappeared so they are not stored in any more at internal sd card, but somewhere else! So i've restored my previous backup from twrp but none of my fingerprints works also my password is not recognised anymore in private mode
So it looks like I lost all my files saved in private mode, I am lucky it wasn't nothing special, just random photos I've put there for tests! but anyway we need some solution for future backups, maybe improved recovery or something
Gandhi70 said:
So yesterday I did my first TWRP restore. Restore worked fine, device booted without issues to the lockscreen.
Lockscreen was protected by fingerprint.
To my surprise, none of my fingers were detected. Strange I thought, but hey, thats what the backup password is for.
So I entered the backup password and ... the device unlocked.
So, no big deal I thought, somehow the fingerprint data got scrambled in the restore process but the password worked.
Next step: Disable Fingerprint lockscreen / Relearn fingerprints.
Of course here I have to authenticate myself again with fingerprint (not working of course) or the backup password.
To my surprise, the device does not accept the backup password when entered in the fingerprint settings...
Uh Oh, I now thought. Well, I CAN unlock my device but entering the backup password every time is kind of annoying.
As I found no solution on how to disable the fingerprint lockscreen I was forced to factory reset the device (strangely enough during factory reset I was again asked for the backup password and it was accepted in this dialog).
So, as a warning, disable your fingerprint lockscreen before making a TWRP/CWM backup.
If someone has a tip on how I could have avoided a factory reset, I would be grateful to learn more...
Click to expand...
Click to collapse
Same thing happened to me today, tried restoring Echoe rom (nandroid) then smack!! fingerprint no longer works
having to factory reset
That's weird, because i did a fully nandroid backup in TWRP on my Samsung Galaxy Note 4 (SM-N910F) like 4-5 days ago. I did that to try out another ROM, but i didn't like that so i restored the ROM i took a nandroid backup of.
After that, my fingerprint scanner works perfect or as good as it did before i did a nandroid backup.
Tom-Helge said:
That's weird, because i did a fully nandroid backup in TWRP on my Samsung Galaxy Note 4 (SM-N910F) like 4-5 days ago. I did that to try out another ROM, but i didn't like that so i restored the ROM i took a nandroid backup of.
After that, my fingerprint scanner works perfect or as good as it did before i did a nandroid backup.
Click to expand...
Click to collapse
well,I tried again (this time I disabled the fingerprint lockscreen before making the backup) and again, after restore, I cannot access the fingerprint settings.
Fingerprints are not recognized and the backup password does not work within the settings dialog.
Not that big of a problem as I did not use the fingerprint lockscreen.
But does anyone know a way to completely reset the fingerprint data/backup password other then making a factory reset?
krohme said:
Same thing happened to me today, tried restoring Echoe rom (nandroid) then smack!! fingerprint no longer works
having to factory reset
Click to expand...
Click to collapse
Backup password did not work either?
Gandhi70 said:
Backup password did not work either?
Click to expand...
Click to collapse
No it only worked to unlock the device - but strangely enough the same backup password would not be accepted by the system for gaining access to the finger print reset settings. Very weird.. I'll be holding off restoring from a nandroid until I know the reason for this bug.
I had the same issue from a cwm restore this evening. Fingerprints not recognised on lockscreen but password is. When I goto try and re-register my fingerprints I can't access the menu with either fingerprint or backup password. Did you guys wipe the cache and dalvik cache before restoring? Could this even have an effect on the fingerprint data? I can't face having to factory reset and then setting up again
my device got effed up... I was forced to delete the stored fingerprints cause I had no options, so when I did that, the fingerprint sensor came up the an error and it said to restart, I did so many times, it didn't work, got corrupted, so I odined the firmware, no luck, we had an update, so I odined the firmware, and still didn't work, this is my 2nd device and its working great.. on the tmobile thread, it stated to delete any stored fingerprints before doing a nandroid backup, or flashing a new rom,, my 2nd phone is working fine, I have flashed and tested my roms without any issues,
try to delete any stored fingerprints, then in twrp recovery, wipe system, data, cache and dalvik, I always do that 2x to make sure everything is clean,
do ODIN and use your firmware to see if it fixes your issues,
some have had success, others had to return there devices, don't know,
Any update to this issue? Returning the device not an option anymore
Well i switched from fingerprint to pattern lock screen. No problem with that one and Cwm restore works fine too
Gesendet von meinem SM-N910F mit Tapatalk
For All those suffer from a bad suprise with fingerprint scanner after TWRP restore: please visit this page and thank the great developer Dr. Ketan.
ucevik said:
For All those suffer from a bad suprise with fingerprint scanner after TWRP restore: please visit this page and thank the great developer Dr. Ketan.
Click to expand...
Click to collapse
Flashed with no luck. Still gives me error when opening fingerprint
Am I going to lose the fingerprint function forever? [emoji26]
So, what's the right thing to do if you want to install a new firmware and restore the data partition from nandroid backup?
I think:
1. Do nandroid backup
2. Unlock device, cancel all fingerprints
3. Full reset device
4. Restore nandroid of data only
5. Setup fingerprints again
Might this procedure work as expected?
Count me as another with the same problem. I even used Android Device Manager to change the backup password. It updates the screen lock password but does not update the fingerprint settings backup password. So still no solution.
There has to be a way to fix this w/ factory reset. The fact that factory reset wipes out the registered fingerprints indicates that the info is stored in /data. Where is it?
Edit: There is a "fingerprints" app. Clear data is not an option. When I select "Manage storage", I'm told that I do not have permission. If we know where the data is stored, we can wipe it and maybe start over.
Question for those who have this specific problem--do you have Xposed installed?
I started a thread here:
http://forum.xda-developers.com/general/general/25-via-paypal-to-1st-person-helps-reset-t2988027
Offering $25 to someone who comes up w/ a solution.....
Honestly I just stopped using the fingerprint scanner. I cannot access the fingerprint data but as i am using the pattern lockscreen i don't care.
Gesendet von meinem SM-N910F mit Tapatalk
Maybe one should look at the log while starting over with a pristine note 4 and setting up the fingerprint recognition.
Gandhi70 said:
Honestly I just stopped using the fingerprint scanner. I cannot access the fingerprint data but as i am using the pattern lockscreen i don't care.
Gesendet von meinem SM-N910F mit Tapatalk
Click to expand...
Click to collapse
Me also, and have converted all my other devices to pattern as well. The Samsung fingerprint implementation comes with too many baggage. I would still, though, like to know of a solution to clear up the registration.
Seem like fingerprint sensor is failing. I keep needed to unlock via drawing pattern.
Anyone experience similar ossues?
Sent from my SM-G935F using Tapatalk
s7 edge fingerprint sensor not responding
Hi this the first time i am posting on xda forums. Wanted help regarding my s7 edge fingerprint sensor. It responds just fine sometimes but most of the time it gives an error. I tried the solution of clearing cache , pressing power and volume down button together to soft reset it. But nothing worked. The funny part is that it will respond for a few while after rebooting ( restarting ) it but when it gibes the error it stops completely until restarted again. Did not drop it. Didn't place it in water. The problem did start after updating from marshmallow to nuogat and even after getting two security patch updates. Don't know what to do. Can anyone plz guide me how to use *#0*# code to check fingerprint sensor because when i check it it sometimes give that intializing failed. Sometimes if i don't put mu finger on the sensor it says it passed and when i place my finger it only shows first box passed while the rest of the boxes fail. I searched everywhere on internet for but in the end came back to xda and decided to ask u guys. As i did got alot of help from u guys on my s2 and note 4. I hope that someone might try to help.
Unless it's a hardware issue, start as follow:
1. Create 4 fingerprint profiles (maximum allowed), use different variations of your thumb.
2. Clean Cache portion in recovery mode.
If all that does not help, do a factory reset.
I do have all 4 fingerprints registered and have cleared the cache from recovery and settings both. And i do keep on cleaning it when it size increases. And i did perform a factory data reset and restored my data from note4. Do u think i should not restore the data of my note 4 after factory reset ??!? and thanku for replying ..
muhammad khizar said:
I do have all 4 fingerprints registered and have cleared the cache from recovery and settings both. And i do keep on cleaning it when it size increases. And i did perform a factory data reset and restored my data from note4. Do u think i should not restore the data of my note 4 after factory reset ??! and thanku for replying ..
Click to expand...
Click to collapse
Agree with you, don't restore any data or apps from backup, just start as a new device and create from scratch the finger print profiles and try it.
If this doesn't fix the problem, it possible that the new update broke the finger print functionality.
Thanku for your time. I really appreciate tour help. Thanku
I did use my phone after factory reset and as a new phone but it gave the same error after 1 day. What do u mean by "create from scratch the fingerprint profile"
muhammad khizar said:
I did use my phone after factory reset and as a new phone but it gave the same error after 1 day. What do u mean by "create from scratch the fingerprint profile"
Click to expand...
Click to collapse
He meant that delete your existing fingerprint saves and create new fingerprint saves
I installed a new rom on my moto g5 + and restored apps from my google account and then i made a backup in TWRP 3.1.1.0. It was a full backup with all the possibilities checked. I tested a new ROM and after that i wanted to recover my backup. I restored all possibilities and my backup booted oke and my sim pincode was accepted also. Then the question about the second pincode (the one with the fingerprint) and the i got wrong pincode (it's the same as the pincode as the pincode for the sim). So now in cannot restore my backups because of this error.
What went wrong and who knows a solution ?
This also happened to me and others, you'll see several posts here on it. Some said TWRP for other devices did this too, and that they always remove the lock screen security (just use swipe) before making their backups to avoid the problem, then re-enable it afterwards. This is my first device where I'm using fingerprint/pattern/etc security so in past I didn't encounter this or know to remove it, and I also lost several backups, so now I'm making all backups that way.
http://bfy.tw/CTPc
Enviado desde mi Moto G 2014 mediante Tapatalk
Info:
my device is a Huawei p9 lite VNS-L31
Before the problem occurred I had absolutely 0 problems with something like that
What doesn't work:
"Enrollment was not completed
Fingerprint enrollment didn't work.
Try again or use a different finger."
When trying to register any finger.
Story:
I unlocked my bootloader, tried several custom ROMS to see which one I like the most.
I ended up using Validus, and successfully registered two fingerprints.
Then I tried rooting, somehow failed and wiped everything to restart.
I reinstalled TWRP and Validus, rooted successfully. Fingerprints stopped working then.
I tried wiping everything, formatting, deleting my fingerprint stuff (which I couldn't, the files didn't exist!!!)
like this:
Solution for fingerprinter:
Boot into TWRP
Go to advanced>filemanager to acces the files in your phone.
Enter the folder /data/system/user/0
Delete following files: ./fpdata/user.db, settings_fingerprint.xml
Reboot to system and set up new fingerprints with the fingerprint wizard
Everything should work normal
Click to expand...
Click to collapse
I also tried installing a different ROM. Nothing worked.
I also tried going back to stock firmware but the update always fails and I only can use custom ROMS.
Everything else works.
Question:
What could I possibly do to get fingerprints working again?
Thanks in advance!
Have you deleted your fingerprints before reinstalling TWRP and Validus? If not, then that might be the problem.
Install any version of Elite Rom and delete your registered fingerprints.
karlorizzi said:
Have you deleted your fingerprints before reinstalling TWRP and Validus? If not, then that might be the problem.
Install any version of Elite Rom and delete your registered fingerprints.
Click to expand...
Click to collapse
Thank you for your answer!
I wasn't able to get into the os, so I didn't do that.
I will try installing Elite ROM, but I don't understand how the fingerprints would be visible to delete there, since I had Validus already when it happened, so shouldn't the fingerprints be there with Validus?
karlorizzi said:
Have you deleted your fingerprints before reinstalling TWRP and Validus? If not, then that might be the problem.
Install any version of Elite Rom and delete your registered fingerprints.
Click to expand...
Click to collapse
It worked, thank you! I'd still be interested in knowing why the fingerprints are visible in EliteROM.
Hello.
I have exactly same problem but on Huawei P10 Lite.
Unfortunately Elite ROM is not available for EMUI 8.
Any other ideas how I can delete fingerprints?
Regards.
EDIT: Never mind, I fixed it by downloading stock ROM via EMUI recovery. It wipes everything include fingerprints and install everything stock.