1. Press ▲/▼ button to select the option that you want to adjust in the Feature menu,then press ENTER to enter.
2. Press ◄/► button to adjust or press ▲/▼ button to select.
3. After finishing your adjustment, press MENU button to save and return back to the previous menu and press EXIT
button to exit the entire menu.
Lock
Press ▲/▼ button to select Lock, then press ENTER button to enter the sub menu with the password “0000”: