Getting started
Basic use
Calls and contacts
Messaging
Apps and media
Connectivity
Specifications
Cause 3 of 3: The key lock is turned on
If the key lock is turned on, you can't use the phone's screen and keys.
Solution: Turn off the key lock.
Turn on the key lock
Press and hold the Lock key until the key lock is turned on.
Turn off the key lock
Press the Left selection key.
Or choose...