finally!
see here:
RIFF JTAG – HTC Desire Unlock, Unbrick, IMEI repair supported 
R-Team, can Riff Jtag repair or revive my dead boot HTC Desire?
i have one here, accidentally disconnected when updating ROM
now it's totally dead..
and i've been waiting NEWS from Riff JTAG to support this Model..
please confirm if RIFF Jtag can Repair/Revive my HTC Desire?
More Power RIFF JTAG Rocker Team!
Br.
Jap