Board: QS20K21_B-KEY V0.3
Firmware 9.5.54
Memory: SAMSUNG 901 K9GAG08UOM PCB0 CAK074AC
Chip: ak2025 SA40LBA 0GA
Accumulator: FT382028P 170mAh 3.7v
Memory was faked to 15,9GB; Actually only 1,88GB
I put a small video (about 50MB) on it after the copying ended I heard that the hardware was disconnected. Now I got the mini-USB-Plug out of the player and pluged it again in. There came a new information buble: "New Hardware found" then it was installed as "Unknown Device". After that I went to the Device Manager und tried to update it to the ADFUupdate.inf, because I thought the player is dead. But there came an error so the driver wasn't accepted. (I tried on Windows Vista HomePremium x64 and Windows XP Home (32 Bit)). I already wrote a "Paypal Dispute" against the seller but I also want to get the Player to use. I tried to short-circuit some contacts of the memory block but I don't understand where I can see the result because nothing happens or changes.
Later I will make some photos of the Player. It is an Nano clone from this auction:
New 16GB 1.8" 4th Gen MP3 MP4 FM USB Player Video Rec B
I please you to help me!
I don't know how to repair it 
. That player should become a gift but now it's only worth some trash.