Calls and contacts
Apps and media
Cause 2 of 5: There are problems activating iMessage
The first time you activate iMessage, it may take a while before the activation is completed.
Solution: Turn off iMessages and try setting up your tablet for iMessaging again after some time.
Turn on sending of iMessages
Press the indicator next to "iMessage" to turn on the function.
Return to the home screen
Press the Home key to return to the home screen.