Tap the "Backlight" icon and enter into the following interface .
Tap “Left-side” or “Right-side” button to select the duration of automatically powering off the backlight.
7.3 Language
Tap the "Language" icon and choose the language .
7.4 Date and Time
Tap the icon "Date Time" and enter into the following interface to set date , time and time zone .
7.5 Calibration
Tap the " Calibration " icon and enter into the following interface .