AT&T Z331 Keypad LayoutMaster Reset
NOTE: A "Master Reset" changes the phone's settings back to default. This process does not erase contacts or downloaded content (ringtones, games, graphics, etc.)
- From the standby screen, press Menu.

- Select Settings.

- Select Phone.

- Scroll to and select Master Reset.

- Enter the Phone Lock Code, then select OK.
NOTE: The Default Phone Lock Code is 0000.

- Read the Warning displayed, then select Yes to continue.

Master Clear
NOTE: A "Master Clear" not only changes the phone's settings back to default, but also erases contacts and downloaded content (ringtones, games, graphics, etc.) This process cannot be undone.
- From the standby screen, press Menu.

- Select Settings.

- Select Phone.

- Scroll to and select Master Clear.

- Enter the Phone Lock Code, then select OK.
NOTE: The Default Phone Lock Code is 0000.

- Read the Warning displayed, then select Yes to continue.
