From front screen enter: *01763*6371#

The handset will reset back to the main screen

Press M button.

Scroll to Settings and press SELECT.

Scroll to Security and press SELECT.

Scroll to MEP locks and press SELECT.

Enter your Handset Code (the default code is 0000) and press OK.

Scroll to Network and press SELECT.

Scroll to Deactivate and press SELECT.

Enter Unlock Code we sent to you and press OK.

Handset should then display DONE and be unlocked.