Additel 686 - System Update; Power Management; Display Brightness; Battary Information

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3.3.4 System Update
The device provides a firmware update function. USB disk is needed; the USB disk format needs to be FAT16 or
FAT32.
Operation:
1. Copy the update file to the root directory of the USB disk.
2. Insert the USB disk into the USB socket on the rear side of the exact source.
3. Select the update pack in the exact source update page.
4. Click until the system starts to update automatically.
5. After waiting a few minutes for the update process to complete, the system will automatically show the update
completion message.
3.4 Power management
3.4.1 Display Brightness
Change the LCD’s brightness by adjusting the brightness bar.
3.4.2 Battery Information
Show the current battery connection status and information.
3.4.3 Screen Saver
The screen saver turns on automatically after a certain period of interface inactivity.
Select Never, 30s, 1 min, 5mins, 15mins and 30mins.
After the screen saver begins, the first press to the keypad will only activate the screen, only after this can the press
takes effect.
3.4.4 Auto Power Off
The backlight turns off after the set time of inactivity.
It is supported to select Never, 5mins, 15mins, 30mins, 1h and 2h.