1. Find "PIN Management"
Click Advanced.

Click PIN Management.

2. Turn use of PIN on or off
Click the field next to "PIN:" and key in your PIN.
If an incorrect PIN is entered three times in a row, your SIM will be blocked. To unblock your SIM, you'll need to key in your PUK. The PUK can be obtained by contacting customer services. Please note: If you key in the wrong PUK ten times in a row, your SIM will be blocked permanently. In this case, you need a new SIM from Vodafone.

Click Apply to turn the function on or off.

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