PUK supplied by your service provider.
PIN2: When you access a menu requiring the PIN2, you must
enter the PIN2 supplied with the SIM or USIM card. For more
information, contact your service provider.
The battery icon is empty
Your battery is low. Charge the battery.
The battery does not charge properly (For Service-approved
chargers)
Ensure that the charger is connected properly.
Visit a Service Centre and have the battery replaced.