![Zte Z998 User Manual Download Page 79](http://html1.mh-extra.com/html/zte/z998/z998_user-manual_941285079.webp)
PIN or password.
Subsequently, you must enter your PIN or password each
time you power on your phone, to decrypt it.
Protecting Your SIM 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 as
soon as you can.
1. Touch the
Home Key > Menu Key > System settings >
Security > Set up SIM/RUIM card lock
.
2. Check
Lock SIM card
.
3.
Enter the PIN you’ve been given and t
ouch
OK
.
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. Touch the
Home Key > Menu Key > System settings >
Security > Set up SIM/RUIM card lock
.
2. Make sure you already check
Lock SIM card
.
3. Touch
Change SIM PIN.
4. Enter the old PIN and touch
OK
.
5. Enter your new PIN and touch
OK
.
6. Enter the new PIN again and touch
OK
.
Restoring a Locked SIM Card
Put all your confidential passwords in a safe place for future