tadad1; thank you for paying attention to my problem;
i have progress but not too far ... unfortunately...
With MP3 Player Upgrade Tool
i arrived till the step when the window open saying that "it is a recovering mode , please select a
firmware"
then , i selected the firmware 3.5.37v2.1bFM (the only which make react my mp4!!)
The screen turns on (white light) when the transfer of firmware is in progress and suddenly turns off and my pc shows me message :
"Error
Read or write device information failed!
please exit the program and check if device is connecting!"
The device is connected and is recognized but when when i retry the recovery without turning off the mp4 , windows shows me that " device not detected"
With MP3 player disk tool,there is a message like : " not detected removable disk ! please check the disk connecting , or reboot the system
Can you help me i try quasi all other firmware but the only one who makes react my mp4 is 3.5.37 v2.1b FM
thank you and CUsoon
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