Motorola Comprehensive Guide on Unblocking and Changing Security Codes for the MTH800 Cell Phone

Incorrect Code Entered—You are prompted to try again. After failing, your MTH800 will be blocked. Please check with your Service Provider how many failed attempts are allowed.

How to unblock the MTH800

The display shows Unit Blocked. You send or receive calls an Emergency Call.

To unblock the MTH800, enter the PUK (Personal Unblocking Key). The PUK is an eight-digit master code to be obtained from your Service Provider.

After entering the PUK successfully, you will be prompted to replace the forgotten code.

At the New Code? prompt enter the new 4-digit code, and repeat the code to confirm. If the code does not match, you will be prompted to enter it again until the new code message is accepted.

Change Code

From the main menu, select > Security > Change Code.

The default PIN code is 0000.

At the Old Code? prompt, enter the 4-digit code. If the old code does not match the entered code at verification, the display prompts you to re-enter the old code.

If the entered code matches the old code, the display prompts you to enter a new 4-digit code and to repeat it for confirmation. If the confirmation code does not match the new code, the display prompts you to re-enter the new code.

When the new code is accepted, the display returns to the Security sub-menu.

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