trying to flash rom and got stuck

[jester73440]

I'm trying to flash my 6900 to enable GPS. I used the guide below to do it and got stuck loading the radio off the mem card. the rainbow screen flashes and says loading but then returns back to the rainbow screen. At this point i wouldn't mind just going back to stock. every time the phone goes to sleep i have to reset it because the power button will not awaken it nor will any calls or incoming messages. thanks for all the help i think i have bitten off more then i can chew trying this


http://www.atwistedweb.com/xv6900/index.html#unlock

-Steve