Instruction Manual MP3 F820 PLUS Player/FM Tuner
Step 2: Press 
to choose the “SN” option to see the serial number.
Note: The SN of the software refers to the machine.
4.10 FORMAT
Step 1: Press 
to enter the menu selection.
Step 2: Press 
to choose the “FORMAT” option.
Note: All files in this player will be removed by force.
4.11 DEFAULTS
Step 1: Press 
to enter menu selection.
Step 2: Press 
to choose the “DEFAULTS” option.
Note: All settings will revert back to the player’s default settings..
SAFETY
1、Listening to the player on high volume for extended periods of time may result in permanent or temporary hearing loss.
2、Please do not dismantle or install the product by yourself.
3、Because of the internal Li battery, please do not put the product into or near fire, or place it in an environment of high temperature for extended periods of time. Doing so may result in damage to the battery.
4、Do not use the earphones while driving, cycling, or operating any motorized vehicle. Doing so may create a traffic hazard and is illegal in some areas.
TROUBLESHOOTING
Probelm | Solution |
The player is unable to play | |
music and the characters on the |
|
Page 22 of 23