How to unbrick a HTC Magic?

I have bricked my HTC Magic. Now when I try to boot it normally or in hboot or in fastboot or in recovery, it only shows a white box with an arrow and a bugdroid then a blank screen. It's not detected by adb or fastboot in any mode. Is there a way to unbrick it? I think I flashed a bad radio. At least, it was after flashing a radio but I thought it was a good one. The old radio version was 2.22 and the new one was a 6.35 and I used ClockworkMode recovery to flash it.