Owner's Manual

2-16
Basic Skills
Locking Your SIM Card (Select Models Only)
You can set a PIN (Personal Identification Number) code to protect your SIM
card against unauthorized use. (Your mobile phone network operator may
have already set a PIN for the SIM card.)
By default, your device does not enable PIN security. To enable the security
or change the PIN, tap
 Settings  Personal  Phone  Security.