Common Troubleshooting

Problems

Possible Solutions

No Power

Music does NOT Play or Freezes

No Sound after file transfer

Video Conversion Error

Video Issues

Computer does NOT recognized

the MP3 player

*Ensure that the "HOLD" button is turned off.

*The Battery level may be too low. Charge the unit.

*Reset the unit by inserting a pin on the back of the unit "Reset" hole.

*Unknown Format (WMA with DRM). *The file(s) are corrupted or damaged. *Unsupported file format (ACC, WAV, M4A…Etc.)

*Ensure that the original file plays on your computer. If not, then you will need to obtain the codec for that file.

*Unsupported format.

*Ensure that the original file plays on your computer. If not, then you will need to obtain the codec for that file.

*Unsupported format.

*Make sure that you are using the correct output frame size and the correct output frame rate.

*For the best output frame size, set the MTV Video Converter to 160X128 or 160X112 @ 15fps (sports Video).

*Check the connections.

*Switch USB ports or DO NOT use a USB extension cable.

*Go into the player "Setup" and change the USB mode to either MTP to MSC or MSC to MTP.

If you are still having difficulty with your MP3 player, please contact Customer Care, Hours of operation, Monday-Friday 8:00 AM – 8:30:00 PM EST, Saturday and Sunday 9:00 AM – 5:30 PM EST. You can also reach us online at

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COBY electronic MPC7055 setup guide Problems Possible Solutions