G935F pin and fingerprint no longer work - Samsung Galaxy S7 Edge Questions and Answers

hello, i flashed the lightrom in twrp and started having some issues, when setting up the phone i can no longer setup any fingerprints also when setting up a pin it will accept it then keeps saying try again when entering the pin or just will not accept any pin. i've had a good look online as to see what the problem is but cannot find anything about the problem i am having. I have the viperOS installed and the pin and fingerprints works great. Been using lightrom for months so not sure why this has happened. would be great if someone can help me out with this problem. thanks
Still having this issue with not been able to set a pin and not been able to setup my fingerprint scanner. Does anyone know what's up with this. I have viperOS installed and have both pin and fingerprint set. But once I install lightrom I can no longer set any screen lock apart from swipe or no lock. Hope someone can help.

well after a couple of days i have now managed to fix my problem. my /efs must of been corrupted, after looking online i found out no working pin or fingerprint and many other problems can be caused by /efs corruption, also i could ring out but my mobile data was no longer working either. all this because of /efs corrpution. luckly i had my efs backed up. after again installing light rom both my pin and fingerprint and mobile data or now fully working.

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A very unusual issue with the fingerprint scanner

I've had my phone for a few months now
I flashed the Skydragon 6.0.1 ROM yesterday and I wanted to move back to 5.1.1
So I did, I flashed the TWRP for 5.1.1 and I flashed the Stock OOS 2.2.0
But now, my home button works and Im able to register my fingerprint but after I selected use fingerprint to unlock it doesn't unlock
I've tried every solution on the Internet such as
1) Force stop com.oneplus.fingerprint and hard reset
2)Use software nav buttons
3)Factory reset
Nothing seems to work
I love the fingerprint feature in the OP2
Someone please help me out.
When I dialled *#808# and checked the finger print auto test and it said PASS
So Im sure its not a Hardware error
You should probably flash the old modem back. Can you please get into the security settings inside settings and tell me if you have a force close. If you get a force close you have to flash the old modem.
By saying modem I mean firmware. You can find it in OnePlus 2 Android development > taker18's cyanpop's second post.
Or in blissmallow thread second post.
Sent from my ONE A2003 using Tapatalk
I have the exact opposite issue. My FPS works with all ROMs except H2OS 6.0.1. Let me know if you find a solution. Might help me fix my problem.
kane1234 said:
I've had my phone for a few months now
I flashed the Skydragon 6.0.1 ROM yesterday and I wanted to move back to 5.1.1
So I did, I flashed the TWRP for 5.1.1 and I flashed the Stock OOS 2.2.0
But now, my home button works and Im able to register my fingerprint but after I selected use fingerprint to unlock it doesn't unlock
I've tried every solution on the Internet such as
1) Force stop com.oneplus.fingerprint and hard reset
2)Use software nav buttons
3)Factory reset
Nothing seems to work
I love the fingerprint feature in the OP2
Someone please help me out.
When I dialled *#808# and checked the finger print auto test and it said PASS
So Im sure its not a Hardware error
Click to expand...
Click to collapse
I had the same problem. Do a wipe then flash this it worked for me
https://drive.google.com/file/d/0B97c1b2UXMxCZkh3T0VzSmlCWms/view?usp=docslist_api
Sent from my ONE A2003 using Tapatalk
Thanks guy, I fixed the problem by flashing a persist.img

Finger print locking bug on Oxygen 3.0.2 MM

Hi Guys,
I've been noticed of annoying bug on the lastest version of Oxygen 3.0.2 MM.
Sometimes when im opening the phone with the fingerprint sensor, its opening a dial pad..
Does anybody notice this bug? how can i solve it?
Thanks,
Afik
support.google.com/nexus/answer/6285273?hl=en
"Sometimes you might need to use your backup PIN, pattern, or password:
When your fingerprint isn't recognized after a few tries
After restarting your device
After switching to a different user on the device
After more than 48 hours have passed since you last unlocked using your backup method"
KooBee said:
support.google.com/nexus/answer/6285273?hl=en
"Sometimes you might need to use your backup PIN, pattern, or password:
When your fingerprint isn't recognized after a few tries
After restarting your device
After switching to a different user on the device
After more than 48 hours have passed since you last unlocked using your backup method"
Click to expand...
Click to collapse
This is not what i meant, it is not asking me for any password, when i use the finger print sensor sometimes its opening a dail pad...
This happens to me to, usually after a failed attempt at reading my fingerprint it will then open the phone app after second successful attempt (and this with official CM13 and not OOS so it's ROM independence).

Fingerprint enrollment problem

Hi guys,
Recently, I have installed Arrow OS 9.0 and I was unable to enroll my fingerprint (But I can use my fp sensor as home button).
Currently I have flashed stock ROM and restored IMEI. I was able to use both my SIM slots and device name shows xt1643. Again, I was not able to enroll my fingerprint. The error message reads "INTERNAL ERROR, Sorry your fingerprint can not be enrolled due to internal error". But, after rooting my device i was able to use it as home button.
Is there any thing that i have missed? Or is my fp sensor gone?
askreddy2 said:
Hi guys,
Recently, I have installed Arrow OS 9.0 and I was unable to enroll my fingerprint (But I can use my fp sensor as home button).
Currently I have flashed stock ROM and restored IMEI. I was able to use both my SIM slots and device name shows xt1643. Again, I was not able to enroll my fingerprint. The error message reads "INTERNAL ERROR, Sorry your fingerprint can not be enrolled due to internal error". But, after rooting my device i was able to use it as home button.
Is there any thing that i have missed? Or is my fp sensor gone?
Click to expand...
Click to collapse
I am using Redmi Note 4 and facing same problem after flashing Aosp Extended Pie ....The fingerprint sensor wouldn't just work. As if it is dead
Tried deleting these files
Root/data/system/users/0/settings_fingerprint.xml
And
Root/data/system/users/0/fpdata/users.db
Now the files are gone and sensor is dead ....Works when Miui is flashed but dont know what is going wrong in custom Rom
marzipan sasquatch said:
I am using Redmi Note 4 and facing same problem after flashing Aosp Extended Pie ....The fingerprint sensor wouldn't just work. As if it is dead
Tried deleting these files
Root/data/system/users/0/settings_fingerprint.xml
And
Root/data/system/users/0/fpdata/users.db
Now the files are gone and sensor is dead ....Works when Miui is flashed but dont know what is going wrong in custom Rom
Click to expand...
Click to collapse
Thankyou brother for the info. But even after reverting back to stock rom, my fp sensor was not working properly. Maybe some of my vendor files were messed up.

Password and decryption issue

For starters, ive been using the same lockscreen pin on ALL of my devices for the past3 years, I know im using the right one. I recently installed the Evolution ROM and set it up with fingerprint and PIN. Fingerprint was working just fine, I rebooted the phone after installing a magisk module and now its telling me the pin for the lockscreen and TWRP is wrong. Again, I only use ONE pin and its telling me its wrong. Tried deleting the locksettings.db file to take off the screen lock and that worked but now phone just stays on "Phone is starting" and TWRP is still excrypted but lets me see all of my files, correct storage amount, and install zips.
When you installed did you format data?
I know this says Lineage, but it works for most custom ROMs, post #2 has the cliff notes version: [Guide]Installing Lineage
As for the locksettings.db, this isn't like older Android devices. You can't just do that, it doesn't fix the problem here.

wierd screen lock problem

hi all,
Just got my 6t, come from 5t. as usual unlocked then latest twrp from @mauronofrio "thnx" and on defaul 10.3.4.
had strange problem with screen lock section. ive tried with pin, password, pattern all the same, its asks for 2 times as usual then i am setting up all is ok till here. then it never accepts i had to delete password db things under system with twrp file manager.
does any one had the issue?
any solution?
thnx

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