Tried the Search, still in a bind

[Toney]

I loaded the bootloader 2.4, updated the radio to 3.35 via the Sprint upgrade (and I think that's where i made the mistake)

My VZW 6800 goes to the 2nd splash screen (past the radio version screen) straight to a blank VZW splash and just sites there forever.

Tried Soft, Hard and battery removal resets.

Windows XP will not recognize it on the USB connection for me to
try anything else.

I could not find any help through the search function. any advice?
thank you