1. Find "Set up SIM card lock"
Press Settings.
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Press All.
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Press Security.
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Press Set up SIM card lock.
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2. Turn use of PIN on or off
Press Lock SIM card to turn the function on or off.
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Key in your PIN and press OK.
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. You can get the PUK by calling customer services on 191 from a Vodafone mobile phone. If you're using a land line, you have to dial 08700 700191 (subscribers) or 08700 776655 (prepaid).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.
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3. Return to the home screen
Press the Home key to return to the home screen.
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