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Backlight Brightness
BL means backlight. There are level 1, 2,3. Level 1 is the lowest
brightness, Level 3 is highest brightness. The default level is 1.
Press UP or DOWN to modify the backlight brightness.
Exit Setting
Shortly press MODE to confirm the input and enter into next
setting. Hold MODE to save the modification and exit the general
setting.
Password Setting
Hold both UP and DOWN for 2 seconds to enter normal setting
interface. Then hold both UP and MODE for 2 seconds to enter
power-on password setting.
On the screen shows “P 2”, this requests to input power-on
password. UP and DOWN is to change the number, and MODE is
to select digit one by one. After the 4 digits inputted, press MODE
to confirm. In case password correct, enter the Power-on
password enable interface, otherwise stays at the password