AGPtek U3 Mode D'emploi page 8

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Backlight timer: set the backlight time with / button.
Note: To let the screen stays on all the time, set the backlight time to "0".
Languages: Choose your language.
Power off Off time/Sleep time: Set the sleep time and display settings
according to your need. Click button to save.
Memory info/ Firmware version: View the memory and firmware details.
Do format: Format the device.
Help and Troubleshooting
 Can't turn the player on
Please check whether the battery has been run out, maybe you can connect
the player with computer and try again after charging.
 Can't download the file from the computer
- Please confirm whether it's connected properly.
- Please check whether the storage space of the internal memory is full.
- Please check whether the USB cable is damaged.
Specifications