Protecting Your Sim Card With A Pin; Changing Your Sim Pin - Zte Skinny V812 User Manual

1. Press Home > Apps > Settings > Personal > Security >
Screen lock.
2. Draw the screen unlock pattern or enter your PIN/ password
you have created if required.
3. Tap None.

Protecting Your SIM Card with a PIN

Every SIM card comes with a PIN. The initial PIN is provided by
your mobile phone carrier. It's best to lock your SIM card as
soon as you can.
Press Home > Apps > Settings > Personal > Security > Set
up SIM card lock.
Tick the Lock SIM card check box.
Enter the PIN you've been given and tap OK
TIPS: If you enter the wrong SIM PIN more times than allowed,
your SIM card will be locked and you cannot access the mobile
phone network. Contact your operator for a PIN Unlock Key
(PUK) to restore the SIM card.

Changing Your SIM PIN

You can change the PIN you've been given to one easier for you
to remember and harder for others to guess.
1. Press Home > Apps > Settings > Personal > Security > Set
up SIM card lock.
2. Make sure you already tick the Lock SIM card check box.
3. Tap Change SIM PIN.