My XZ restart itself

[Drive7726]

When i video call on Facebook messenger. It will restart itself. After use for a little while but not all the time.
And the trouble about adaptive brightness when I use line application the brightness turn contrast too much then it's make the screen (I use black theme in line application) in to gray and alphabet usually should be white but now it overlap mean it's hard to read
Sincerely
Drive

[CameronT]

Hi @Drive7726,

Welcome to the community.

Because these are third party applications it is difficult to troubleshoot. You may wish to contact the application developers for more assistance, especially with the Line issue.

Do you get any error message before your phone shuts down?

[Drive7726]

No, sir. I didn't get anything before my phone shut it down.

[CameronT]

@Drive7726,

Try your phone in safe mode and see if you experience the same thing. Safe mode will start your phone with only the pre-installed applications loaded so you will be unable to use Line, but it will isolate if the issue is caused by an app or by the phone.

[Drive7726]

I cannot get the phone in safe mode, sir.

How do i do?

[Thelastofus]

http://talk.sonymobile.com/t5/FAQ/How-to-boot-your-phone-into-safe-mode/m-p/348008#U348008

[Drive7726]

Thank you, sir

Now phone get in safe mode.

[Drive7726]

First of all, problem with the lock screen. When I play music with JOOX application or other music applications by connecting to Bluetooth device and turn off the screen while playing music, when I unlock the screen, it automatically unlocks without asking for the password or finger print.
When play in safe mode, the lock screen works normally.

[CameronT]

@Drive7726,

Again you're in a situation where it's third party apps that are causing the issue. I recommend you contact the developers of the apps you're having problems with. You can do this from the apps store page.