Getting started
Basic use
Calls and contacts
Messaging
Apps and media
Connectivity
Specifications
Cause 2 of 2: The phone is overloaded for unknown causes
If the phone is slow for no apparent reason, it may help restarting it.
Solution: Restart your phone.
Restart your phone
Press On/Off.
Simultaneously, press and hold the lower part of the Volume key and keep them both pressed until your phone restarts.
Or choose...