Learn how to use SIM Card Lock on your Sony Xperia Tablet Z. The SIM card lock only protects your subscription. Your device will still work with a new SIM card. If the SIM card lock is on, you have to enter a PIN (Personal Identity Number). If you enter your PIN incorrectly more times than the maximum number of attempts allowed, your SIM card will become blocked. You need to enter your PUK (Personal Unblocking Key) and then a new PIN. Your PIN, PIN2 and PUK are supplied by your network operator.
To enable the SIM card PIN lock
- From the Home screen, tap Apps icon.
- Find and tap Settings > Security > Set up SIM card lock > Lock SIM card.
- Enter the SIM card PIN and tap OK.
To change the SIM card PIN
- From the Home screen, tap Apps icon.
- Find and tap Settings > Security > Set up SIM card lock > Change SIM PIN.
- Enter the old SIM card PIN and tap OK.
- Enter the new SIM card PIN and tap OK.
- Retype the new SIM card PIN and tap OK.
To change the SIM card PIN2
- From the Home screen, tap Apps icon.
- Find and tap Settings > Call settings > Fixed dialing numbers > Change PIN2.
- Enter the old SIM card PIN2 and tap OK.
- Enter the new SIM card PIN2 and tap OK.
- Confirm the new PIN2 and tap OK.
To unblock a locked SIM card
- When Enter PUK and new PIN code appears, enter the PUK code.
- Enter a new PIN code and tap OK.
If you enter an incorrect PUK code too many times, the SIM card becomes blocked. If this happens, contact your service provider to get a new SIM card.
