1. When the power is off, press and hold the SET button.

2. Press the up or down button to select a personal data number (1, 2, 3, 4). Once you reach the personal data number you wish to use, press and hold the SET button for more than 3 seconds. The unit will beep once to confirm. Clr is displayed.

3. Select YES using the up or down button.

4. Press the SET button.