[tadad1]

Sam-TheMaster
I can only give you advise based on my own experience. The only player I have recovered is the Nano clone. The steps I took to achieve this are all in the DPRG. The chip that I reset using the process is the memory chip in my case a Samsung 1GB nand flash.
If your player is not being recognised by windows you can not use the upgrade utility to re-flash the firmware of your player. The only way I know to do this is to short the memory chip which resets it. Windows will then recognise the player as a ADFU device and the upgrade utility will announce that the player is in recovery state and you will need to load a FULL VERSION FIRMWARE. Once you have done this you can reload a backup dump.bin.
There are so many variations of firmware and players that it is impossible to tell you which firmware is right for your player so you must try different ones until you find one that is compatible with your player.
The player will have had a driver CD with it, on some you may find a copy of the firmware as a .bin or .fw file but this is not always the case.