Calls and contacts
Apps and media
Cause 2 of 3: The battery is flat
To use your phone, the battery must be charged.
Solution: Charge the battery.
Charge the battery
Connect the charger to the socket and to a wall socket.
When the battery charging icon is displayed, the battery is charging.
When the phone is turned on, you can always see the battery power level. The battery icon shows the remaining battery power.