Manage Fingerprint / crash / blank white page / error message

[katerpanne]

I have a problem, since the update from 9.1.10 to any newer version I cant update my fingerprints / 3D face on MI8 EE.

If I chosse the menu "Manage fingerprints" / "Add 3D face data" / "Set Screen lock" then there is a blank white screen or there will apppear this error message:

Also local Backup is not working -> eg when I have to type my password / pin in a menu -> then it will crash

java.lang.RuntimeException: An error occurred while executing doInBackground()
at android.os.AsyncTask$3.done(Unknown Source:27)
at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:383)
at java.util.concurrent.FutureTask.setException(FutureTask.java:252)
at java.util.concurrent.FutureTask.run(FutureTask.java:271)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
at java.lang.Thread.run(Thread.java:764)
Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'int com.android.internal.widget.VerifyCredentialResponse.getResponseCode()' on a null object reference
at com.android.internal.widget.LockPatternUtils.checkCredential(Unknown Source:13)
at com.android.internal.widget.LockPatternUtils.checkPassword(Unknown Source:4)
at com.android.internal.widget.LockPatternUtils.checkPassword(Unknown Source:1)
at com.android.settings.dH.a(Unknown Source:0)
at com.android.settings.dT.b(Unknown Source:7)
at com.android.settings.dT.doInBackground(Unknown Source:2)
at android.os.AsyncTask$2.call(Unknown Source:20)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
... 3 more

I have tried different languages, wipes, reboots ... on version 9.1.10 everything was working.

Anybody else with this error or does anybody have a workaround ?

Thank you, Kater

SOLUTION: Format Data and install everything new .... the error occurs after a downgrade of the rom ...

 

[Karpfenhai]

Probably your theme
Remove it and reboot.

Sent from my MI 8 Explorer Edition using Tapatalk

 

[katerpanne]

Hi ... I have the standard theme ... no special. I removed every 3rd party apps. Flashed again, same error. I dont want to format all data

 

[ko3st68]

I am experiencing the same problem. I too do not want to do something drastic...

Did you solve the problem? And if yes how?

Cheers,
ko3st

 

[moonlight1563]

performing a clean flash fixes that issue. also it could be happen due to updating from stable to weekly (meh, sorry for necroposting)