You need a Phone Unlock Code (PUK) to unlock your phone if you've entered your SIM PIN wrongly three times.
To get a PUK, you'll need to chat to us online. Tap the button below to get started.
Once you've got your PUK, follow the on-screen instructions to unlock your phone.
If the wrong PUK is entered 10 times in a row, your SIM will be blocked permanently