[unseen]

I have found a Fw with version 2.600.100
I did the upgrade, windows recognized as mass storage device, but now nothing appears on LCD, nor I cant switch it on.
I found another similar fw version 2. 611.101, but after update my player almost died completely. I was not able to put in recovery mode anymore, no matter how long i kept pressed the play button, nothing.
I was absolutely sure, that it was completely dead. In my desperation i've tried everithing, and with a huge luck, dont know how tho, i've started the FW download tool, and while it was searching for a device, i made the recovery procedure, and it came back alive again. I uploaded again the 2.600.100 fw, and works as a mass storage device.
I still need some help please, if somebody has a similar player, or knows some link.
Which of the files are for the play mode? Coz i dont want to mess anymore with the other ones.
Thanx!