If you need to unblock the SIM PIN on your CTL® Chromebook NL71CT-L, follow these step-by-step instructions.
Ensure the device is powered on.
Enter the 8-digit PUK then tapOK.If an invalid PUK is entered too many times, the SIM card is permanently disabled.
Enter a new SIM PIN code (4 to 8 digits) then tapCONTINUE.
Please sign in to leave a comment.