Getting started25Once the PIN lock is enabled, you must enter the PIN eachtime you turn on the device.If you enter an incorrect PIN too many times, your SIM●or USIM card will be blocked. You must enter a PINunlock key (PUK) to unblock the SIM or USIM card.If you block your SIM or USIM card by entering an●incorrect PUK, bring the card to your service providerto unblock it.Enter textYou can enter text by selecting characters on the virtualkeypad.You cannot enter text in some languages. To enter text,you should change the writing language to one of thesupported languages. ► p. 87Enter text by selecting alphanumeric keys on the screen. Youcan also use the following keys:54123 6This screen may differ depending on applications.Number Function1 Change case.