Casio's G-Zone series of cell phones are designed as rugged, high-endurance devices for construction sites, industrial locations or activities where the phone could be dropped and damaged. As a security measure, the phone will lock to prevent unauthorized usage, or after a drop or other trauma. The unlock code is the last four digits of the phone's number. This becomes a problem, however, when the phone has had to be activated and therefore doesn't yet have a number assigned to it.
Before Activation
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Step 1
Go to the phone's main screen.
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Step 2
Press the key to select "Unlock."
Step 3
Enter code "0384." During manufacturing Casio installs this number as the default code for an inactive cell phone. Entering this number should unlock the phone for use.
If this doesn't work let the phone return to the main screen. Press "##7764726" and send. For "SPC" enter "000000." Write down the last four digits of the number that follows. Enter these four digits on the unlock screen.
After Activiation
Step 1
Go to the phone's main screen.
Step 2
Press the button to select "Unlock."
Step 3
Enter the last four digits of the phone's number. This will unlock the phone for use.