Getting started
Basic use
Calls and contacts
Messaging
Apps and media
Connectivity
Specifications
Cause 2 of 2: Your phone is overloaded for unknown reasons
If your phone is slow for no apparent reason, it may help restarting it.
Solution: Restart your phone.
Restart your phone
Press the Top volume key.
Press the Bottom volume key.
Press and hold On/Off until your phone restarts.
Or choose...