If you enter an incorrect SIM PIN three times, your phone will lock. You’ll need to enter a Phone Unlocking Key (PUK) to unlock it.
To get a PUK, you’ll need to contact us by calling 191 (free from any Vodafone mobile) or 03333 040 191 from any other phone (standard call charges apply), or through Live Chat.
Once you’ve got your PUK, follow the on-screen directions to enter it and unlock your phone.
Please note: If the wrong PUK is entered 10 times in a row, your SIM will be blocked permanently