Q12: After upgrading firmware, use USB to connect player to computer, showing that there is some problem with I/O devices;
A: Use corresponding upgrade firmware to solve the problem.

Q13: The screen flashes and FM doesn't work after upgrade the firmware.
A:Use corresponding upgrade firmware to solve the problem.

Q14: Under My Computer, the player doesn't show up as a removable disk;
A: Use corresponding upgrade firmware to solve the problem.

Q15: There is a window pops up asking what do I want Windows to do but no options for me to choose. Whatever you click OK or Cancel, the window disappears and no further operation can be done;
A:Use corresponding upgrade firmware to solve the problem.

Q16: Want to upload songs to the player, the computer says to set up a new hardware. Follow the instructions to start the installation but can't finish it;
A: Use corresponding upgrade firmware to solve the problem.

Q17: The player makes big noise, then shuts off;
A:Use corresponding upgrade firmware to solve the problem.

Q18: Use USB to connect the player to the computer and says can't find the hardware;
A: Use corresponding upgrade firmware to solve the problem.

Q19: Hold button is on OFF and the player shows;
A: Use corresponding upgrade firmware to solve the problem.

Q20: The player turns on and off automatically;
A: Use corresponding upgrade firmware to solve the problem.

Q21: Can't download songs to the player;
A: Use corresponding upgrade firmware to solve the problem.