Is the phone turning on at all now?
Is it boot looping or anything?
I found this on "XDA Developers"
- Download a stock Rom from htc.com
- Rename the extension to .zip
- open it with winzip and extract the RUU_signed.nbh file to a folder
- Rename it to LEOIMG.nbh and copy it to the root of a microSD card thats been formatted to FAT32
- Insert your storage card into your phone
- Enter Bootloader and follow onscreen instructions to flash
(after it is done, install hspl 2.08, radio 2.15, clk/magldr, and from cwm wipe data/cache/dalvik cache)
(
http://forum.xda-developers.com/showthread.php?t=609477)