my zr randomly restarts to lockscreen when in sleep

[AndreasOlsson]

When sleeping it restarts to lockscreen. The problem started like two weeks ago. With stamina mode on it cant be a problem with a 3'dpartyapp.

[_alexdon_]

Can you boot in safe mode? There are apps that can overtake stamina:

/t5/FAQ/How-to-boot-your-phone-into-safe-mode/m-p/348008#U348008

[Uliwooly]

If it still happen while on safe mode, remove both the SIM and SD card and check again

[AndreasOlsson]

Its stable for now, got it into safemode. But how do I know what app is the bad one? 

[Uliwooly]

If it's working fine on safe mode then it's a third party app acting up (not a preloaded app) 

[_alexdon_ · Accepted solution]

Most probably you have an antivirus,task killer,something is acting up.

[AndreasOlsson]

It has not restarted in a while now. Seems it was the taskkillercleaner.... haw newer had any problems with it beffore

[_alexdon_]

I hope it goes well.