Galaxy S7 FingerPrint error after update. - AT&T Samsung Galaxy S7 Questions & Answers

So i have recently updated my phone to the latest 7.0 software on my galaxy s7. ever since the update, my fingerprint scanner doesn't work. When i go into the system settings to try and setup new fingerprints it gives me the error "An error has occurred with the fingerprint sensor. If this message appears repeatedly, restart your device." I tried restarting the device, clearing the app's cache and data, as well as clearing the system cache in the boot menu. When i go into the FingerPrint test under the HwModuleTest(*#0*#) and perform a normal scan, everything comes back as failed. Is my only option to backup my phone and do a complete reinstall?

sandman817 said:
So i have recently updated my phone to the latest 7.0 software on my galaxy s7. ever since the update, my fingerprint scanner doesn't work. When i go into the system settings to try and setup new fingerprints it gives me the error "An error has occurred with the fingerprint sensor. If this message appears repeatedly, restart your device." I tried restarting the device, clearing the app's cache and data, as well as clearing the system cache in the boot menu. When i go into the FingerPrint test under the HwModuleTest(*#0*#) and perform a normal scan, everything comes back as failed. Is my only option to backup my phone and do a complete reinstall?
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Click to collapse
Try completely reinstalling QA6. I highly doubt the update caused the fingerprint scanner to start working though since it works perfectly fine on my phone.

VenomMOD said:
Try completely reinstalling QA6. I highly doubt the update caused the fingerprint scanner to start working though since it works perfectly fine on my phone.
Click to expand...
Click to collapse
How do i go about reinstalling the latest android version on my phone?

sandman817 said:
How do i go about reinstalling the latest android version on my phone?
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Click to collapse
Flash PK1 with Odin and take the ota again. When the ota is done, factory reset the phone to make sure any software issues are gone.

Should I be using smart switch to backup my contacts/messages/etc to my computer?

I recently updated my phone and am having the same problem. Have you found a solution for you that worked (I also tried wiping my cache partition and a soft reset)

aizq29 said:
I recently updated my phone and am having the same problem. Have you found a solution for you that worked (I also tried wiping my cache partition and a soft reset)
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Click to collapse
I also just updated my SM-G935FD via OTA to Android version 7.0.
Since then, fingerprint scanner is not working. Like for OP, all tests fail under HwModuleTest.
I tried to remove all fingerprints, but it is impossible to add new fingerprints - the error message is "Make sure that the Home key is clean and dry, then try again." Obviously, the fingerprint sensor is as dry and clean as it was before the update (when it worked perfectly).
Since then I tried, unsuccessfully:
- removing old fingerprints and adding new fingerprints (does not work, cf. above)
- formatting cache partition
- performing a hardware reset
Please advice, thanks.
P.S. I do not have access to Odin, since I do not have a Microsoft OS.

I had constant issues with the ATT firmware's fingerprint reader performance (6.x) -- wouldn't recognize my fingerprint when I tried to unlock and would often get the forced timeout.
It works flawlessly for me on the u firmware (still 6.x unfortunately). Night and day.

Same issue with me here in the UK. Just did the Nougat OTA update, having no end of issues, including the "dry home button" stuff with the fingerprint scanner. Also, the stock browser seems to have lost it's secret / incognito mode.... why can't they just leave stuff alone? Seems like my only option at this point is to downgrade back to marshmallow and put up with the annoying update notification.

Same here what do we have to do ?

Wildarmtins said:
Same issue with me here in the UK. Just did the Nougat OTA update, having no end of issues, including the "dry home button" stuff with the fingerprint scanner. Also, the stock browser seems to have lost it's secret / incognito mode.... why can't they just leave stuff alone? Seems like my only option at this point is to downgrade back to marshmallow and put up with the annoying update notification.
Click to expand...
Click to collapse
Downgrade doesn't help

https://forum.xda-developers.com/tm...t-s7-edge-g935t-t3567502/page120#post72332585
CHECK OUT MY POSTS BETWEEN PAGES 116 AND 120.

Has anyone had, conversely, an *overactive* fingerprint sensor?
While the phone is unlocked, at times when my finger is only resting on the scanner, I'm taken to the accessibility settings with an alert asking "Grant Permission: Please, grant permission to allow this feature".

Related

Fingerprint hardware unavailable? Enrollment didn't work?

Recipe:
TWRP 2.8.7.2
TWO Nexus 6Ps on 6.0.1
One N6P systemless rooted
Official Android SDK (fastboot)
So I got a replacement N6P from Fi as I noticed some slight bending on my original, and I was working on moving my data over using TWRP so I could keep all my app data, etc. When I backed up my original 6P, I forgot to remove screen and boot security, so when I flashed on to my new 6P, I was locked out (as expected, known bug). I tried this fix to get in to my system, and it worked! I was able to log in. However, I noticed that my old fingerprints were still enrolled and I wanted to start those fresh, so I tried to remove them. When I selected "Delete" for each enrolled fingerprint, nothing happened. This was the first clue. I then tried to enroll new fingerprints and got the following message:
Code:
[B]Enrollment was not completed[/B]
Fingerprint enrollment didn't work. Try again or use a different finger.
The other odd thing is that on the lockscreen, I was getting a red text error message that read something like "Fingerprint hardware not available."
So I figured something got messed up security wise from the fix I tried after flashing a locked nandoird. I then went back and made a new nandroid backup (boot, system, data) on my old phone making sure that all security was turned off. Same thing!
Wondering if the hardware did actually get messed up somehow, I flashed back to official stock 6.0.1 from Google. Fingerprinting then started working!
So nothing I have done since then has made any difference when trying to restore my userdata from my old phone. I've tried wiping cache/dalvik, and removing the locksettings.db file, but these didn't change anything either.
Has anyone had this issue before? It seems really bizarre to me. I'm probably going to end up flashing stock and restoring userdata via TB, but that is a headache compared to nandroid so if possible I'd like to get this to work.
Tried wiping userdata then flashing userdata from my old 6P and that did not work either.
Have you tried wiping data, setting up the device again, and then checking if you can add a fingerprint?
I tried restoring data from a device I had to RMA too, and got that exact message every time - I gave up in the end as I tried wiping everything but the only thing that worked was clearing userdata & restoring my apps from the nandroid via TiBu.
All in all, I presume it's something to do with the fingerprint scanner having a different hardware key/serial to the new one and retaining that info somewhere in the data partition when you back it up.
DanielF50 said:
Have you tried wiping data, setting up the device again, and then checking if you can add a fingerprint?
I tried restoring data from a device I had to RMA too, and got that exact message every time - I gave up in the end as I tried wiping everything but the only thing that worked was clearing userdata & restoring my apps from the nandroid via TiBu.
All in all, I presume it's something to do with the fingerprint scanner having a different hardware key/serial to the new one and retaining that info somewhere in the data partition when you back it up.
Click to expand...
Click to collapse
Yup I did try that, didn't work either. I'm right where you were too, currently restoring apps for TB. Your hypothesis seems plausible to me, I hadn't thought of that. Kind of a bummer for swapping devices if that is the case. I wonder if we could find where the fingerprint key is stored in userdata and back it up prior to flashing the nandroid?
Thanks for the reply!
No problems & yes, it is, though I presume it's either been done for some sort of security, or as a complete oversight - I can't see Google deliberately doing so, especially on a Nexus device.
I think it's probably highly likely that someone will find the hardware/serial file soon and find a way to stop it from being overwritten when TWRP restores the data partition, though it is annoying that it hasn't been discovered yet... Thankfully restoring from a nandroid through TitaniumBackup isn't too bad nowadays!
Srry for necro but I think I might have found a workaround solution to this problem or at least the problem which is very similar to this one. Please check "symptoms" in the description of the solution to make sure we are talking about the same issue.
Here's the link to the solution: http://forum.xda-developers.com/showpost.php?p=68374321&postcount=1446
erikem said:
Srry for necro but I think I might have found a workaround solution to this problem or at least the problem which is very similar to this one. Please check "symptoms" in the description of the solution to make sure we are talking about the same issue.
Here's the link to the solution: http://forum.xda-developers.com/showpost.php?p=68374321&postcount=1446
Click to expand...
Click to collapse
Sorry for another necro, but this doesn't work for me on Android 7.1.1
Edit: Correct fix here: https://forum.xda-developers.com/showpost.php?p=68199207&postcount=9

Issues After Root - Rotation and Encryption

Howdy,
I got a new Note 4 from Bell Mobility about a month ago...
I updated the software, rooted it and installed the Wanam modified Xposed framework.
I have lost the automatic rotation, except for the built in camera software. Nothing else will auto-rotate. Checked the gyroscope and checked a few 'leveler' applications - all tests pass. Oddly I noticed the camera software still auto-rotates, no idea why it is special.
I tried the Wanam Xposed module to 'Enable all rotation angles' it has made no difference. With screen rotation software, currently have "Rotation - Orientation Manager by Pranav Pandey" installed. Auto-Rotate On and Forced Auto-Rotate neither option will rotate the screen when I turn my phone. If I choose Forced Landscape, it will go into Landscape mode. The only way to return to Portrait though is to use one of the Force Portrait options though.
My other issue is with turning on Device Encryption... Using SuperSU Pro for su..
If I just go through the prompts without changing anything, it reboots but doesn't encrypt.
First I tried installing as a system app so I could use the Disable function in the Android Application Manager, as I did with my Note 2, SuperSU tells me "Not (currently) available in system-less root mode".
If I turn off "Enable Superuser" in SuperSU, encryption enables properly, but I am unable to turn the "Enable Superuser" again, it says it has to update, but the fails. Suggests a reboot and try again. Sadly, this did not help.
I had success with one of the exploit root methods, KingRoot. While this worked when my phone was encrypted, it wasn't stable and kept popping up stuff. I tried to replace it with SuperSU, there are a few guides written to do just that, but they all indicate that it is very hard to get rid of, regardless, none of the guides worked for me. I ended up resetting the phone and starting over...
I tried the CLI command to start the device encryption from a # prompt..
vdc cryptfs enablecrypto inplace password 1234567890abcdef
The phone rebooted a couple times, but took a very long time (hour plus) to come back to the Android Lock-Screen.. But still a non-encrypted device. If I intrupted the process because I thought it had crashed, it started up and immediately told me something when wrong with the encryption and I need to use Recovery to reset the device..
As for root methods, I was using the CF-Auto-Root at first, trying to look for solutions to both issues, I tried a few ways of getting SuperSU installed.. The last time I reset I tried the "SkipSoft Unified Android Toolkit" method. 'Grasping at straws' to get SuperSU installed into /system so can use the Applicaiton Manager to disable and enable it...
My mobile's specifics, if it matters..
Samsung Galaxy Note 4
Model number - SM-N910W8
Android Version 5.1.1
Baseband version - N910W8VLU1COK3
Build number - LMY47X.N910W8VLU1COK3
Currently have the Team Win Recovery Project v2.8.7.0 recovery software installed.
I am looking for suggestions for both issues, but really want to avoid resetting the phone if I can at all possible... Yes, I have Titanium Backup Pro installed, but have never actually gotten a restore to properly restore all my applications and data... I rely on it now just for the Uninstall and Freeze features.
For an update,
I also noticed that rotation works on the Lock Screen and in the camera applicaiton.
If I rotate my screen on the Lock Screen, the red handset picture and camera icons rotate.
If I rotate in the camera application, nothing changes position, but all the icons rotate as well.
I'm still completely stuck though, open to suggestions...
For rotation, it is likely caused because you removed the com.thingy.facebook system app. I tried removing it because I thought is was bloatware but read somewhere that messing around with it cause the auto rotate and pedometer to fail. I fixed it by reflashing the rom without data wipe then never removed it again. Page Manager is safe to remove though.
uchihakurtz said:
For rotation, it is likely caused because you removed the com.thingy.facebook system app. I tried removing it because I thought is was bloatware but read somewhere that messing around with it cause the auto rotate and pedometer to fail. I fixed it by reflashing the rom without data wipe then never removed it again. Page Manager is safe to remove though.
Click to expand...
Click to collapse
Thank you,
I had it frozen for a while, completely uninstalled it, trying to see if lack of space was why I couldnt' get SuperSu to become a System App..
I will try to put the facebook app back to see if that helps. Hoping I don't need to do a ROM reset, but if that is what it takes.
kevinds said:
Thank you,
I had it frozen for a while, completely uninstalled it, trying to see if lack of space was why I couldnt' get SuperSu to become a System App..
I will try to put the facebook app back to see if that helps. Hoping I don't need to do a ROM reset, but if that is what it takes.
Click to expand...
Click to collapse
Thank you http://forum.xda-developers.com/member.php?u=5047956
I tried installing FaceBook from the PlayStore, no change.. So I uninstalled it again.
Took a backup in Titanium Backup and in TWRP.
From the stock image, I extracted system.img.ext4 and used SkipSoft's application to make just this file Odin flashable..
Flashed it.. When I got back to Android, my phone hadn't reset (what I was going for ), rotation is working, SuperSU still giving root access
I went back into Titanium Backup, the freshly installed apps were listed on top, because there was no backup of them.
Froze each, one at a time and checked the rotation after each.. Froze all the apps with no backups, and rotation stayed working, which I thought was odd for what fixed it.
So.. The Facebook applications are all frozen, as they were before I erased them the first time, and rotation still works. Hurray..
Now for the device encryption, I will keep messing with it.. Trying FlashFire to mount System as RW and to write the newest version of SuperSU, hopefully it will install to System this time.
Thank you again.
kevinds said:
Thank you http://forum.xda-developers.com/member.php?u=5047956
I tried installing FaceBook from the PlayStore, no change.. So I uninstalled it again.
Took a backup in Titanium Backup and in TWRP.
From the stock image, I extracted system.img.ext4 and used SkipSoft's application to make just this file Odin flashable..
Flashed it.. When I got back to Android, my phone hadn't reset (what I was going for ), rotation is working, SuperSU still giving root access
I went back into Titanium Backup, the freshly installed apps were listed on top, because there was no backup of them.
Froze each, one at a time and checked the rotation after each.. Froze all the apps with no backups, and rotation stayed working, which I thought was odd for what fixed it.
So.. The Facebook applications are all frozen, as they were before I erased them the first time, and rotation still works. Hurray..
Now for the device encryption, I will keep messing with it.. Trying FlashFire to mount System as RW and to write the newest version of SuperSU, hopefully it will install to System this time.
Thank you again.
Click to expand...
Click to collapse
This is amazing, can you please post the odin flashable file? I am having this exact problem right now because I removed it in TB. Is it just the facebook file that are flashed? Thanks so much in advance, you're saving my life here

Fingerprint misbehaviour

Hi,
I've recently updated my N910F to Marshmallow (official). It's not the latest version but I wasn't able to download that one yet.
I made a fresh install with it (factory reset via TWRP, flashed it through ODIN, rooted via CF Autoroot, installed TWRP 3.0.2-0 and XPosed v84, restored Apps trough Titanium) and even reflashed it with a wipe of system, cache and dalvik cache before because of problems with auto rotate.
But the Fingerprint API or something like that seems to be not working how it should. I can't set screen lock to Fingerprint (I get asked "Enter a backup password.", wenn I enter one, it just says "Sorry, try again" without saying why it failed), even after going to security settings and deleting the credeintially, which fixed such problems on 5.1.1 it doesn't work.
I also had read, that you could use your Fingerprint for authentication in PlayStore, but at least in version 6.7.12.E I can't see that option.
PlayStore should use the API of Nexus Imprint for that and I thought that this is required by any OEM that want's to get a license for M, so I don't really see why it doesn't show up.
The sensor itself seems to be working, I was able to register my fingers and with FingerLock, an app locker designed for Samsungs proprietary Fingerprint API form earlier versions, I also have no problems.
I think, Samsungs own implementation is working (accept for Lock screen but they´could have changed it here for the official one), only apps for Googles standardized one are failing. But I can't really prove it. An app, that should be using the official API in M is failing, but the developer says it's a problem only with the Note 4 and he hopes he can publish a fix later this month.
The app locker MaxLock, which I thought would use fingerprint authentication with the official API doesn't show up an option for that but maybe through problems with the implementation.
Is there any way to test what's going wrong?
PS: sorry for the long text
I now have this..... Any solution?
Get a (non-TW based) custom ROM. It's the only thing that's works since Samsung most have screwed up the whole API. Their own is only useable partially and the standard one by Marshmallow is completely messed up and not worrying at all.
I was so pissed off of Samsung's incompetence that I switched to emotion ROM. It's a bit tricky to set up the fingerprint reader, but once it's done, everything using the official API is writing flawlessly. Never gonna switch back.

S7 Edge Fingerprint to unlock

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

Stuck on 'Phone is starting' after updating to Android 12

Hello!
I tried to update my phone (SM-G975U) via Odin from Android 9 to Android 12, got the firmware from SamFw.com. Everything went fine until the phone rebooted, after unlocking the phone gets stuck on 'phone is starting'. I CAN access the Set Up Menu, Uninstall apps, move some settings here and there, connect to Wifi/Bluetooth, receive calls, install apps using ADB. Also, theres a notification all the time that reads 'Phone restarted Unlock your phone to get app notifications', I'm assuming that the phone thinks it is not unlocked and that's why it doesn't fully boot up.
Some things that I've already tried:
Intalling another Launcher (Pixel Launcher)
Reinstalling the firmware (ver G975USQU6IVC7) / Trying with different CSC with no results
Wiping Cache in Recovery Mode
Deleting/Adding Fingerprints
Changing from Lock Pattern to NIP to Password
I don't really want to do the full wipe, I would like to keep my data or be able to export the photos (Device not Recognized by Smart Switch also)
Is there anything else I can do?, has anyone been through the same issue?
Is your phone rooted?
Vatt`ghern said:
Is your phone rooted?
Click to expand...
Click to collapse
No, it's not rooted
Hi !
@DannOsnaya have you found a solution to the phone problem other than restoring to factory settings?
I have the same problem at the moment, almost identical to what you experienced.
If anyone has some advice on how to fix this problem, please share your advice.
My phone is not rooted.
Racer512 said:
Hi !
@DannOsnaya have you found a solution to the phone problem other than restoring to factory settings?
I have the same problem at the moment, almost identical to what you experienced.
If anyone has some advice on how to fix this problem, please share your advice.
My phone is not rooted.
Click to expand...
Click to collapse
Sadly, I have not
My phone is still like that, I tried updating to the newest security patch but didn't work either, haven't lost hope in avoiding factory reset tho
Hi. Did u find any solution to it. Am facing the same issue. Although I tried to factory reset but doesn't work.
DannOsnaya said:
Sadly, I have not
My phone is still like that, I tried updating to the newest security patch but didn't work either, haven't lost hope in avoiding factory reset tho
Click to expand...
Click to collapse
Any way to factory reset. I tried every possible way following YouTube but nothing works. It's just stuck. I've a backup of my data so not worried.
No, I still have the same issue.
Have you tried to install a launcher?
DannOsnaya said:
No, I still have the same issue.
Have you tried to install a launcher?
Click to expand...
Click to collapse
Nothing works. Now decided to show it to anyone. I guess the mobile shops have an option to erase everything. I don't understand how did it happen because it's usually with my toddler, he might have done something.
DannOsnaya said:
Hello!
I tried to update my phone (SM-G975U) via Odin from Android 9 to Android 12, got the firmware from SamFw.com. Everything went fine until the phone rebooted, after unlocking the phone gets stuck on 'phone is starting'. I CAN access the Set Up Menu, Uninstall apps, move some settings here and there, connect to Wifi/Bluetooth, receive calls, install apps using ADB. Also, theres a notification all the time that reads 'Phone restarted Unlock your phone to get app notifications', I'm assuming that the phone thinks it is not unlocked and that's why it doesn't fully boot up.
Some things that I've already tried:
Intalling another Launcher (Pixel Launcher)
Reinstalling the firmware (ver G975USQU6IVC7) / Trying with different CSC with no results
Wiping Cache in Recovery Mode
Deleting/Adding Fingerprints
Changing from Lock Pattern to NIP to Password
I don't really want to do the full wipe, I would like to keep my data or be able to export the photos (Device not Recognized by Smart Switch also)
Is there anything else I can do?, has anyone been through the same issue?
Click to expand...
Click to collapse
I followed a video and wiped out. Finally successful. I wasn't worried about data as Google has a backup.
I followed this method and finally it's factory reset.

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