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BlackBerry 9800 Slider
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The PIN protects your SIM card from unauthorised use. If the PIN is activated, it needs to be keyed in when you turn on the phone. Follow the instructions to change the PIN.
You need to activate the use of the PIN before you can change the PIN. Click here to see how.
You need to activate the use of the PIN before you can change the PIN. Click here to see how.