First of all, I have uninstalled xposed framework to try and get back into my privacy mode. Secondly, for some reason my fingerprint scanner cannot recognize any of my prints anymore, it just stopped working all of the sudden. Only on the lock screen will my phone let me choose the alternative password. I have tried multiple times to change my fingerprint settings.
I am thinking about factory resetting, but I do not want to lose my images saved in privacy mode. Could I use root explorer to find those and move them to a folder on my SD card? Anything else I could do to try and get my fingerprint scanner working properly again so I don't have to factory reset?
Thanks
This is the message I get when trying to reset my alternative password. And yes, I have tried restarting but I still get the same error message.
Did you install SU?
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
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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.
I have a nexus 6P running rooted stock rom and I wanted to try out a new rom. Before flashing the new rom, I made a nandroid backup via TWRP. Now, the rom that I was backing up had fingerprint security setup with backup passcode for unlocking the phone.
So I tried new rom and it didn't work (read-too many issues and too many crashes). Decided to revert back to my original setup. Went back into TWRP and restored the backup.
After booting the phone up, I can't log in to my phone anymore. As you know after every reboot, fingerprint sensor doesn't work unless you enter the backup passcode. So I am entering my passcode and its not accepted. I have tried entering passcode many times but to no avail. I know my passcode so possibility of me forgetting it is not valid.
Has anybody else seen or ran into this issue yet?
The step folks are missing is Prior to installing a backup you Must Change security to None before you even start a backup This clears password, pin and saved finger prints. I believe once security is changed it is safe to backup and then install backup. You will need to reenter Pin and Fingerprints.
Born<ICs said:
The step folks ...
... is changed it is safe to install backup.
Click to expand...
Click to collapse
You mean clear the security before making a backup ... right?
if not, how would I change security on a backup file of rom that had security enabled.
I have never used lock screen security before so never ran into this issue.
No, dig through this forum for tech details. But my understanding is anytime you make/install a backup or reflash rom or go back to stock you must reset you Security options in settings to None. You have security now, probably Fingerprints, and the required Lockscreen Pin.
If you try to install backup or Rom or whatever without doing so you get what you experienced. There is a path out of it if you read further.
Pin or Pattern on boot after restoring Nandroid
Born<ICs said:
No, dig through this forum for tech details. But my understanding is anytime you make/install a backup or reflash rom or go back to stock you must reset you Security options in settings to None. You have security now, probably Fingerprints, and the required Lockscreen Pin.
If you try to install backup or Rom or whatever without doing so you get what you experienced. There is a path out of it if you read further.
Click to expand...
Click to collapse
The interesting thing is, I intentionally chose to enter pattern/pin on rebooting. The strange (actually may not be strange .....but strange to me) thing is that even when I move on to different Roms, that initial choice is remembered and embedded since even after choosing not to require pin/pattern when rebooting, I get prompted. Also the pin/pattern works during recovery, it also works on the initial startup after restoring a backup but then fails after successful fingerprint use (it will actually say "wrong pin" or "wrong pattern") at the end of the booting process. The thing is, I have only used one pin and at other times one password ever with this device. Eventually I had to do a factory reset to solve this issue (thank goodness I was able to back up my internal storage to my computer in TWRP recovery mode).