Getting started
Basic use
Calls and contacts
Messaging
Apps and media
Connectivity
Specifications
Cause 1 of 4: There's an error in the operating system on your phone
If there's an error in the operating system on your phone, it may help restarting it.
Solution: Restart your phone.
Restart your phone
Press the Side key.
Simultaneously, press and hold the lower part of the Volume key and keep them both pressed until your phone restarts.
Or choose...