If you enter the wrong PIN three times in a row, the SIM card is blocked and the message “PIN BLOCKED” appears. To unblock, you need to enter your PUK code (Personal Unblocking Key). NOTE: Your PUK code must be obtained from your service provider. When you have received your PUK code, follow these steps: 1. Enter your PUK 2. Enter a new four-to eight-digit PIN 3. Re-enter the new PIN to confirm

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