1. Find "PIN Management"
Click Settings.
Click Security.
Click PIN Management.
2. Change PIN
Click the drop down list next to "PIN operation".
Click Modify.
Click the field next to "PIN code:" and key in your current 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 the field next to "New PIN:" and key in a new four-digit PIN.
Click the field next to "Confirm PIN:" and key in the new PIN again.
3. Save settings
Click Apply.
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