Hi there Sam,
You seem very knowledgeable regarding flashing the HD2 so I wonder if you might help me if you can?
I recently bought a second HD2 from an ebay seller. It was described as having a white screen.
On receiving the phone I powered it up it booted to the white screen, no hTC logo. I rebooted to the bootloader and was able to connect via usb. The screen showed spl 2.08.???/ and cotulla from memory. I contacted HTC, UK support and gave them the IMEI no. from which they told me that the phone was unlocked and running the 3.14 WWE software. I therefore assumed that a failed attempt had been made to flash the phone with some other software so I downloaded the RUU 3.14 and attempted a reload via USB. After around 60% the upload failed giving a 270 error and the phone rebooted to the white screen but this time with the HTC logo. Bootloader now shows spl 3.03.0000.
I have tried different roms, Task 29, radio only roms, HSPL 4 all but to no avail usually only part loading before errors halt the process. HSPL 4 tries to load the progress bar reaches say 90% then rolls back doing this a few times before giving an error and quitting. I akso n=made 2 different gold cards thanks to your image creator but again to no avail. I prepared them using my working HD2.
I then began to think about bad blocks and came across the LEOdiag.nbh rom. I ran this from the sd card, it started up but halts at Jump to Diagnostics.
I now feel I'm at a dead end would welcome any other ideas of clearing the rom and/or repairing any bad blocks, unless the rom is busted in which case it would mean a replacement main board.