A SIM PIN helps prevent other people from using your cellular data connection.
Touch
Settings
Network & Internet
Cellular
.
Touch the cellular connection name.
Touch
Advanced options
.
Under the
Security
section, touch
Use SIM PIN
.
Enter the SIM PIN.
If this is the first time using it, type the default SIM PIN. If you don't know the default SIM PIN, visit your mobile operator's website to see if it is listed. Restart the tablet to lock the cellular data connection with the SIM PIN.
If you already set up a PIN for the SIM, type the SIM PIN when prompted, and then select
