Coby MP822-4G Instruction Manual page 52

Troubleshooting
I cannot transfer files to the player.
Ensure that your computer is running a supported

operating system.
If using a USB extension cable, ensure that it is
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securely attached to the player and the PC, or try
using another USB cable.
If you have connected the player through a USB

hub, try connecting the player directly to your
computer.
Ensure that the player's memory capacity is not full.
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Ensure that the Hold switch is disengaged.
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There is no sound during playback.
Check the volume level.
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Ensure that the headphones are attached securely
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to the player.
The sound quality of the music is poor.
Try playing the file on your computer. If the sound

quality is still poor, try downloading the file again or
re-encoding the file yourself.
Ensure that the bit rate of the file is not too low. The

higher the bit rate of the file, the better it will sound.
The minimum recommended bitrate is 128kbps for
MP3s and 96kbps for WMAs.
Try lowering the volume of the player.
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Page 52 Coby Electronics Corporation