Finding that your and requires a PUK code can be stressful, but it is a standard security measure designed to protect your mobile data. A PUK, or Personal Unlocking Key, is a unique 8-digit code assigned to your specific SIM card. Why is My SIM Blocked?
Your SIM card may become blocked if you enter the wrong PIN code multiple times. This is a security feature designed to protect your SIM card from unauthorized use. If you enter the wrong PIN code three times in a row, your SIM card will be blocked, and you'll need to use your PUK code to unblock it. sim blocked puk code