Thanks guys for trying to help me.
When I flashed my drive in Windows XP it was detected ok, firmware utility also detected it ok, and seemingly flashed it correctly, but as I said before, now I'm left with dead drive.
My main question is what are other methods of rescuing bricked drive, except those I've tried. Are there any other tools able to flash this particular drive except official Samsung tool (in any operating system, DOS, Linux, ...)? Is there some hidden recovery mode? Maybe some hardware access to flashing firmware (requiring physically opening the drive).
To be honest I don't believe there is any way to revive bricked drive when its not even detected by the system in any way. I just though it's a good idea to ask more knowledge people on the interwebs first, before I throw my drive away. Anyway thank you once again for looking at my case.
Is there a newer version of TSDNDOS.EXE than version 1.01.2 2008.06, that I found on Dell's support site? Is windows tools the only option now to upgrade firmware on our drives?