ATTN This might sound crazy
 

but have i mp4 mp3 that was 3.5.37 firmware but i accidentally turned it into some
s1mp3 ADFU driver :cry: that the firmware updater will not detected i used to looked at drive L: now its no drive and its some s1mp3 ADFU driver
in the device manager. so how do i turn back to what it was? :cry:
and when u turn on its nothing.

If your player is being recognised as an ADFU Device then it is in recovery mode possibly due to firmware corruption or a hardware malfunction. Unfortunately it needs a reinstall of firmware to get it working again, the problem you face is finding the correct firmware for your player. I suggest you contact the seller for asistance in locating a working firmware for you otherwise it is a bit like trying to find a needle in a haystack as there are 100's of variations most of which will not be compatible with your player.