Stuck at first screen

[lauwry]

After unsuccesfully trying to change my rom my prophet is stuck at the booting screen. Soft reset, hard reset.. Noting works :S
can someone please, please help :(

[LCfD]

Have you made USPL? (Case yes) Was it Ok?

Might you check out this thread here:
xda-developers > Artemis > Artemis upgrading etc.>Orbit Stuck On Booloader
http://forum.xda-developers.com/showthread.php?t=344733

[lauwry]

I tried to update to ProphetTouchVIII. First step, using the RUU worked. but after the second step, upgrading the rom to ProphetTouchVIII and hard reboot I got a short message (less than 1 sec) "format FAT partition
Format is completed!!" and now it returned to bootings screen and got stuck there.
I will read the recommended thread but so far I havent found anything helpfull there. The big problem is that my computer wont find the m600 anymore so I cant flash the rom back to a working one, i guess..?
further suggestions are welcome..