Disabling Screen Unlock Security; Protecting Your Sim Card With A Pin - Zte Grand M User Manual

Disabling Screen Unlock Security

If you have created an unlock pattern, PIN or password, you
can disable it.
1. Press Home key > tap
Screen lock.
2. Draw the screen unlock pattern or enter your PIN/
password you have created.
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.
1. Press Home key > tap
SIM card lock.
2. Tick the Lock SIM card check box.
3. 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.
46
> Settings > Security >
> Settings > Security > Set up