Fingerprint sensor stopped working after manually deleting password files. - Galaxy S6 Q&A, Help & Troubleshooting

Hi there,
I have recently had to root my S6 (running stock Android 6.0.1) in order to delete the password files under /data/system (all the .key files and the locksettings.db) as I had forgotten my password and fingerprint unlock was not enabled. After doing this successfully, I was able to unlock my phone and when trying to remove/add finger prints in the settings app, I get the error message saying:
An error has occurred with the fingerprint sensor. If this message appears repeatedly, restart your device.
Click to expand...
Click to collapse
Even after restarting my device, I am still unable to remove fingerprints or sometimes even access the fingerprint management menu in the settings. I cannot see how this could have happened and would really appreciate any help in fixing this issue.
Thanks

rodit said:
Hi there,
I have recently had to root my S6 (running stock Android 6.0.1) in order to delete the password files under /data/system (all the .key files and the locksettings.db) as I had forgotten my password and fingerprint unlock was not enabled. After doing this successfully, I was able to unlock my phone and when trying to remove/add finger prints in the settings app, I get the error message saying:
Even after restarting my device, I am still unable to remove fingerprints or sometimes even access the fingerprint management menu in the settings. I cannot see how this could have happened and would really appreciate any help in fixing this issue.
Thanks
Click to expand...
Click to collapse
Have you tried clearing dalvik cache/cache via recovery?

sofir786 said:
Have you tried clearing dalvik cache/cache via recovery?
Click to expand...
Click to collapse
Thanks for the reply.
I have cleared both the caches using TWRP, unfortunately, to no avail.

rodit said:
Thanks for the reply.
I have cleared both the caches using TWRP, unfortunately, to no avail.
Click to expand...
Click to collapse
Only thing I can advise now is to backup and do a full factory reset, if you still have issues try a new rom or firmware

sofir786 said:
Only thing I can advise now is to backup and do a full factory reset, if you still have issues try a new rom or firmware
Click to expand...
Click to collapse
Thanks for the advice. It is likely this is what I'll do if I find no other solution.

Related

Can't disable encryption

Hi all,
Title says it all: I can't seem to disable the device encryption on my Transformer. In the Encryption menu the Encrypt tablet option is greyed out and just says Encrypted beneath it.
How do I disable this?
Thanks,
Casey
Do you have a exchange account set up? Some accounts force encryption.
Sent from my Transformer TF101 using XDA Premium App
I do, but the odd thing is that I manually chose to encrypt through the encryption menu - it wasnt a forced policy.
cant be undone. When setting up encryption (manual or through policy) the device says explicied that only way to undo is to hardware reset to default.
You ignored that so its staying encrypted or reset.
I have also encrypted my eeepad and dont notice any performance issues. I like it encrypted because i also use it for work/studie
jumper123 said:
You ignored that so its staying encrypted or reset.
Click to expand...
Click to collapse
Well, dunno about ignored... more like didn't notice...or maybe didn't read the instructions properly....lol.
As for performance issues, the boot takes longer and we have to enter the passcode twice, which is a bit of an annoyance.
Thanks.
jumper123 said:
cant be undone. When setting up encryption (manual or through policy) the device says explicied that only way to undo is to hardware reset to default.
You ignored that so its staying encrypted or reset.
Click to expand...
Click to collapse
How is that possible to make an hardware restet? I can't even do a factory reset...
profete162 said:
How is that possible to make an hardware restet? I can't even do a factory reset...
Click to expand...
Click to collapse
Same with my Nexus 4. I m using TWRP to upgrade roms:crying: If u find any solution pls let me know.
You should be able to do a factory reset from TWRP directly.
Lethe6 said:
You should be able to do a factory reset from TWRP directly.
Click to expand...
Click to collapse
I had this problem awhile back. Neither TWRP nor CWM could do a factory wipe while encrypted. If you run into that search for the superwipe script, it worked quite well to get me back on track.Should find the script here http://forum.xda-developers.com/showthread.php?t=1245892

how do manually delete fingerprints

hi,
recently i had to reinstal my rom and only restored my data partition.
But now i have the problem that i cant use fingerprints. Seemingly something in the data partition tells him that there should be fingerprints but since he cant find them he gives an error.
I hope somebody can help.
ken2802
The only way that I know to clear them if they are not on the list in the finger print area...
Settings -> Lock Screen and Security -> Other Security Settings -> Clear Credentials
I can't understand what you are trying to say...
bloodrain954 said:
I can't understand what you are trying to say...
Click to expand...
Click to collapse
well after the data restored i cant use fingerprints anymore. it just says something like error, there was an error with the fingerprintsensor.
ken2802 said:
well after the data restored i cant use fingerprints anymore. it just says something like error, there was an error with the fingerprintsensor.
Click to expand...
Click to collapse
If there's an error with the Fingerprint Sensor, then clearing the fingerprints won't help. You did something you probably shouldnt have and screwed up the Senor itself.

[Q] notifications not showing on edge after updating to 5.1.1

Tried security and application notifications as well as notification access, text messages do not show on the edge as they did on kk help?
same problem
5.0.1 has a specific setting for showing notifications on the edge under settings>Edge Screen> Show notifications on edge screen. Not there in 5.1.1?
with 5.1.1 then have notifications showing up on the Edge screen also with lock screen as 4.4.4 , but change settings
settings->sound and notification->notification application -> app and set two and three option
arbit12 said:
5.0.1 has a specific setting for showing notifications on the edge under settings>Edge Screen> Show notifications on edge screen. Not there in 5.1.1?
Click to expand...
Click to collapse
It is there but it isn't working.
leomaxi said:
with 5.1.1 then have notifications showing up on the Edge screen also with lock screen as 4.4.4 , but change settings
settings->sound and notification->notification application -> app and set two and three option
Click to expand...
Click to collapse
Tried that, option 2 is there, but option 3 isn't, and it still doesn't show notification on edge.
Thanks for the help so far :good:
Lemagex said:
Tried security and application notifications as well as notification access, text messages do not show on the edge as they did on kk help?
Click to expand...
Click to collapse
Lemagex said:
It is there but it isn't working.
Tried that, option 2 is there, but option 3 isn't, and it still doesn't show notification on edge.
Thanks for the help so far :good:
Click to expand...
Click to collapse
1) wipe partition cache
2) into settings->sound and notification->lock screen-> set show messagge/notification
and return to >notification application -> app and view three option
Found something odd ... after wiping cache it doesn't re optimize apps like on all my other devices ...
Wiped cache or Dalvik?
---------- Post added at 11:32 AM ---------- Previous post was at 11:31 AM ----------
Else try a factory reset. Cleared some edge issues for me when I moved from Kitkat to 5.0.1
Here's my options on 5.1.1 no third options.
cnote74 said:
Here's my options on 5.1.1 no third options.
Click to expand...
Click to collapse
my app google
uhmm, into settings - > screen edge-> checked flag on "notification message"? and on "feed information" checked?
my options on 5.1.1 with no third option when i set "hidden messagge" on lock screen. after i partition cache, choose "show messagge" and i after new cache partition and re odin install rom 5.1.1. After i have three option
wiped cache and dalvik, still no fix. I think data is the last thing to do. oh well.
Same issue here...
I have had this same exact issue for a couple months on my sprint edge. Ive done multiple factory resets and Ive found that the edge notifications work perfectly until the phone is restarted. Once the phone turns on and off for the first time after the reset, all edge notifications are broken.. This has happened every time I factory reset it!!
We need an update addressing these 5.1 issues
use odin for rewrite 5.1.1, I as Ive that the edge notifications work perfectly until the phone is restarted. Once the phone turns on and off for the first time after the reset, all edge notifications are broken.. with recovery i wipe partition cache and reused odin 3.10.7 for update 5.1.1 stock and the edge notifications work perfectly also the phone is restarted.
Do the people with broken notifications have fingerprint unlock turned on? If you disable it, is it resolved?
Sent from my SM-N910F using Tapatalk
AMoosa said:
Do the people with broken notifications have fingerprint unlock turned on? If you disable it, is it resolved?
Sent from my SM-N910F using Tapatalk
Click to expand...
Click to collapse
i have fingerprint unlock turned off
Tried with fingerprint lock and off, no difference. Not working.
I will try rewriting the update with odin. Ive tried downgrading with odin before I realized it wasn't possible, but hopefully it will work if its the same firmware.
Tried reflashing the update. Bricked the phone, It said "firmware update encountered an issue" then I flashed the 5.1.1 file that I downloaded to fix it and the phone was working again, except nothing was deleted, the phone was the exact same as I left it and notifications still don't work.
Edit: tried again and it passed on the first try. Phone keeps booting up like nothing happened, all my apps and data and settings are untouched. Doesnt flashing stock firmware wipe everything?
george9 said:
Tried reflashing the update. Bricked the phone, It said "firmware update encountered an issue" then I flashed the 5.1.1 file that I downloaded to fix it and the phone was working again, except nothing was deleted, the phone was the exact same as I left it and notifications still don't work.
Edit: tried again and it passed on the first try. Phone keeps booting up like nothing happened, all my apps and data and settings are untouched. Doesnt flashing stock firmware wipe everything?
Click to expand...
Click to collapse
Nope, Depends if you flash the all-in-one file or the broken up rom - PIT, BL, AP, CP & CSC.
All-in-one rom doesn't seem to delete your data, broken up rom does.

android.process.media has stopped, help?

Hello guys, I have this s7 duos (gt-g9305fd) (UAE), I rooted it about a week ago and everything was going okay, but yesterday while I was playing with developer options I turned on OEM lock/relocked it, and then after the phone restarted I got this message "Custom binary blocked by FRP lock", I searched for solutions online and I read that I have to flash the stock rom to fix the issue, so I did (Indian Stock Rom). After that, I booted it up and got several "x is responsive messages" (android.process.media, my files, Google x, Google y, Google z) so I thought it's a permission issue so I rooted it again, but that doesn't seem to fix the issue .. Is there a way to fix this?
AndroNueb said:
Hello guys, I have this s7 duos (gt-g9305fd) (UAE), I rooted it about a week ago and everything was going okay, but yesterday while I was playing with developer options I turned on OEM lock/relocked it, and then after the phone restarted I got this message "Custom binary blocked by FRP lock", I searched for solutions online and I read that I have to flash the stock rom to fix the issue, so I did (Indian Stock Rom). After that, I booted it up and got several "x is responsive messages" (android.process.media, my files, Google x, Google y, Google z) so I thought it's a permission issue so I rooted it again, but that doesn't seem to fix the issue .. Is there a way to fix this?
Click to expand...
Click to collapse
Hi
Try factory reset...
Factory Reset..
MAX 404 said:
Hi
Try factory reset...
Click to expand...
Click to collapse
Factory reset is my last resort - I'm just trying to avoid installing all the apps again..
AndroNueb said:
Factory reset is my last resort - I'm just trying to avoid installing all the apps again..
Click to expand...
Click to collapse
Did you clear dalvik and cache from recovery? maybe it helps
AndroNueb said:
Factory reset is my last resort - I'm just trying to avoid installing all the apps again..
Click to expand...
Click to collapse
Try to go in and force stop android.process.media and cmlear its data and reboot. If that does not work jreinstall stock firmware with odin.
MAX 404 said:
Did you clear dalvik and cache from recovery? maybe it helps
Click to expand...
Click to collapse
I did clear dalvik cache/cache, that doesn't see to fix the issue
jdoggawesomex900 said:
Try to go in and force stop android.process.media and cmlear its data and reboot. If that does not work jreinstall stock firmware with odin.
Click to expand...
Click to collapse
How can I force stop android.process.media, what app is that? Also, I did flash stock firmware and that's the only reason I'm getting these errors.. I'm guessing it has to do with Google * apps or some stock app(my files gets unresponsive too, also can't see anything from gallery/my files)
AndroNueb said:
I did clear dalvik cache/cache, that doesn't see to fix the issue
How can I force stop android.process.media, what app is that? Also, I did flash stock firmware and that's the only reason I'm getting these errors.. I'm guessing it has to do with Google * apps or some stock app(my files gets unresponsive too, also can't see anything from gallery/my files)
Click to expand...
Click to collapse
Maybe try to reflash gapps. It wont reset your phone

Screen lock was already changed, try again with the new screen lock

Hi,
After unlocking the bootloader with the latest official app, I cannot change the screen lock method of my Zenfone 6 with a message saying "Screen lock was already changed, try again with the new screen lock" and I can only choose "None" or "Swipe". The fingerprint breaks as a consequence because it relies on PIN/password/Gesture.
The phone comes with a fingerprint + password authentication before the unlocking, which seems to cause my issue due to mess-up of the TEE. Factory reset / Reflashing the whole image doesn't work.
Anyone experiencing similar issues? Is there any way to re-enable other unlocking methods?
Thanks!
Same happened to me,
I got back the pin option only when I relock the bootloader.
I used the official asus application, I'm gonna try the adb unlock option
Same thing here. Unlocking the bootloader breaks it. I fixed mine by flashing the downgrade to P zip, setting my phone all back up and then updating to Q. You might be able to just reflash Q and have it work, but if that fails go to P and then upgrade. Haven't had an issue since.
Did you downgrade to P being bootloader unlocked? If so , did you use the official asus method with their apk, or did you unlock with adb?
Thanks for your response !!!
[Removed]
DaConcho said:
Same thing here. Unlocking the bootloader breaks it. I fixed mine by flashing the downgrade to P zip, setting my phone all back up and then updating to Q. You might be able to just reflash Q and have it work, but if that fails go to P and then upgrade. Haven't had an issue since.
Click to expand...
Click to collapse
I can confirm that reflashing stock Q image doesn't work.
joesa said:
Did you downgrade to P being bootloader unlocked? If so , did you use the official asus method with their apk, or did you unlock with adb?
Thanks for your response !!!
Click to expand...
Click to collapse
I could never get the adb unlock method to work at all. I used the app to unlock, stayed unlocked and flashed back to Pie, then updated to Q
DaConcho said:
I could never get the adb unlock method to work at all. I used the app to unlock, stayed unlocked and flashed back to Pie, then updated to Q
Click to expand...
Click to collapse
Thanks,. A will try your method this weekend and let you know :good:
DaConcho said:
I could never get the adb unlock method to work at all. I used the app to unlock, stayed unlocked and flashed back to Pie, then updated to Q
Click to expand...
Click to collapse
It worked !!!!
Did exactly what you did and now I got back the screen lock options,
Thanks !!!!
So, I am on a custom ROM, but I understand that you solved this on stock. Does anyone have experience how this can be solved on a custom ROM? Thanks!
Hey, I was having the same problem and tried doing several things without success (Like deleting files in the /data/misc/keystore, changing different ROMS, etc). What fixed it for me was restoring the vendor partition, the problem was that I removed the enforced encryption flag and that was causing problems with the GSIs I was installing.
Xanderco said:
Hey, I was having the same problem and tried doing several things without success (Like deleting files in the /data/misc/keystore, changing different ROMS, etc). What fixed it for me was restoring the vendor partition, the problem was that I removed the enforced encryption flag and that was causing problems with the GSIs I was installing.
Click to expand...
Click to collapse
how did you restore the vendor partition? did you use the backup on twrp or something? is there a flashable zip?
also did this happen after you unlocked or after you installed a custom ROM with encryption disabled?
Did you guys manage to fix it? I actually have the same problem with my Redmi 8A after flashing Magisk on Havoc and Stock ROM. I tried to delete the locksettings. db and .key files but i still can't set a pattern or PIN
redm4227 said:
Did you guys manage to fix it? I actually have the same problem with my Redmi 8A after flashing Magisk on Havoc and Stock ROM. I tried to delete the locksettings. db and .key files but i still can't set a pattern or PIN
Click to expand...
Click to collapse
Do This It will Work Tried and Tested
Remove /Bypass Lockscreen With Recovery
Recently when i restored my data using TWRP i faced a problem at lock screen. I was not able to unlock my phone with the pin i set Earlier..So after so many attempts i was able to find a solution for that problem.(works with pattern,pin etc)...
forum.xda-developers.com
Do This It will Work Tried and Tested
for video reference -https://www.youtube.com/watch?v=WOsUbcTQhrY
Above link is not my video so
What worked for me was re-locking the phone with fastboot. I didn't have to mess with any files.
drish malhotra said:
Do This It will Work Tried and Tested
Remove /Bypass Lockscreen With Recovery
Recently when i restored my data using TWRP i faced a problem at lock screen. I was not able to unlock my phone with the pin i set Earlier..So after so many attempts i was able to find a solution for that problem.(works with pattern,pin etc)...
forum.xda-developers.com
Do This It will Work Tried and Tested
for video reference -https://www.youtube.com/watch?v=WOsUbcTQhrY
Above link is not my video so
Click to expand...
Click to collapse
Spot on !
Removing the .key and lockfiles from /data/system works !
I can set PIN again
....
Swipe TWRP on your phone, enter the system, and delete 2 locksettings....file in the DATA\ SYSTEM\ folder directory.. The file at the beginning can be successfully protected by restarting and setting a password or fingerprint.
abprie said:
So, I am on a custom ROM, but I understand that you solved this on stock. Does anyone have experience how this can be solved on a custom ROM? Thanks!
Click to expand...
Click to collapse
just aslo wipe vendor before flashing the rom it will help u. If doesnt work just ping me.

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