S9+ turns off when usinf fingerprint security

[MrElias]

My phone turns off randomly when using fingerprint as a biometric unlock.

I have sent it to a warranty repair center but I received it back with the problem still presisting.

I have done a factory reset and have used the phone on safe mode but it still reboots or turns off while the phone is idle.

I have no SD card in.

The fingerprint sensor is working for all the apps and Samsung Pay but after it goes idle it resets or turns off.

This happens constantly.  When it is idle.

[usertWmhVY9NpR]

I am seeing the same thing

[SamsungMichelle]

@usertWmhVY9NpR: Can I get the full model number of your device? 

[MrElias]

I have the Verizon 64 GB variant.

SM-G965U 

[SamsungAdam]

Thank you for the information. Does this occur with PIN locks and pattern locks as well? Also, try restarting the phone. 

[MrElias]

No my 0hone works perfectly when using pattern,pin and password only, it only restarts when using fingerprint

[MrElias]

No my phone works perfectly when using pattern,pin and password only, it only restarts when using fingerprint

[userxYe5Vr2b5A]

My phone started doing the same thing today. After a backup and factory reset, then restore, the problem persisted.

Then I did a hard reset without the restore.

Eureka! Problem solved!

As i sit here and redownload all my apps and customize my settings and security, i go to register fingerprints. In order to do this I must set a pin.  The second I do this the phone shuts down! As soon as i take the security off the phone works fine.

There must be a bug in the security system. This is a problem as I use my fingerprint to access sensitive apps.

[usermepY5Pxm6D]

Hmm this is a new problem can you really not enable just a pin and nothing else? 

Normally this problem is related to the unlock with fingerprint. 

If you simply add fingerprints and do not turn on fingerprint unlock your phone shouldn't freeze up and you can contucon using fingerprint on your apps including tap to pay 

[userZuIjSiqpiS]

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@usermepY5Pxm6D wrote:

If you simply add fingerprints and do not turn on fingerprint unlock your phone shouldn't freeze up and you can contucon using fingerprint on your apps including tap to pay 

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I just started having this problem, and narrowed it down to this solution. 

Also, if fingerprints are enabled for unlock the phone is usually fine if it's in use. Once it goes idle it takes about a minute and then reboots.