Standby of the screen freezes the device

1564

7

2017-08-12 15:55

Hello,
my M3s has some problems. When I install some apps or "light stress" the phone, it stucks after the screen goes in standby. I can use it while the screen is on, it works fine, but when the screen goes in standby the phone stucks. It reboots after 10-15 mins or I must force the reboot.

I tried to reinstall the OS and downgrade to Flyme 5 but nothing changed.