Retrieve PUK code and unblock SIM

If the wrong PIN is entered three times in a row, your SIM is blocked. To unblock your SIM, you'll need to key in your PUK. You can get your PUK on Telstra's web page.

1 of 3 steps Key in the PUK and press OK.
2 of 3 steps Key in a new four-digit PIN and press OK.
3 of 3 steps Key in the new PIN again and press OK.