[HD2 Android Q&A, Help & Troubleshooting and Genera] mrbox23:
DO NOT FLASH ANYTHING WITH DAMAGED VOLUME KEYS!!

I flashed a splash screen on mine after damaging ribbon to volume keys and now I have a main board that will NOT recognize these keys even after replacing the broken part, I cant say yours will do this, but mine did soo...

I have replaced two screens on mine, the ribbon to the volume rocker is very delicate i tore two of them on my first screen replacement ( i buy bricked HD2s' for screens). I have had my HD2 now almost two years and no parts are original. Just recently i FINALLY bought one with a busted out screen so i could replace just the main ribbon assembly and a main board that can use volume keys.

This main ribbon sits under your regulatory label ( with the FCC shiz and serial #'s) its integral with your GPS radio, camera assembly, and of course volume rocker keys.

This can be replaced with only moderate difficulty, there are videos even from HTC that explains how to disassemble/reassemble everything safely and in order.

Disassemble

http://www.youtube.com/watch?v=cL-jnUKufC4

Reassemble

http://www.youtube.com/watch?v=t8Q7mXdcJ54&feature=channel&list=UL

I found those after I ripped not one but two volume key ribbons....

To do this you need to pay attention to how the coaxial cables for bluetooth(white) and GPS(black thin) sit, to avoid a few hours of trial and error. getting everything to fit again.

First disconnect the coaxial from blutooth be gentle now, its the white cable at the left of my first image, that phone is nowhere near assembled remember how your cable was positioned. remove and unplug the speaker as well as the vibrator as you move the white cable out of the way, stop pulling it when you hit the screw hole at the top right corner of regulatory label.

Just above where the screw hole is you should see another plug like the blutooth coaxial only black disconnect that and leave it there. try to leave the thicker black cable that leads to camera connected, its ok if it comes out but its a pain to get connected again.

When the top right of your phone looks like my second pic your ready to remove the screw keeping the gps in place thats the top right screw, silver.

disconnect the camera cable from the main board its right next to the battery terminals, the only plug there and hard to miss behind where your simcard goes.

This is important..... right behind the volume keys is the groove thats keeping those coaxial and camera cables in place, under those is the ribbon leading to volume rocker. taking note of how they fit remove these cables from the groove 4th pic

Sorry about the detail cameras are less than perfect on ICS builds and im a terrible photographer on top of that. you must understand that there is a black tape holding those wires together near the mother board, thats right where the volume ribbon is so be careful when you get to that. i just cut/tear the tape holding wires in place, also one of the coaxial cables plugs under the main board right there as well be careful not to disconnect that, you wont hurt anything but its a pain to get it back.

after cables are free from groove you can remove volume rocker. rocker board is held with adhesive just like the camera up top. using fingernail pry the board away from its housing, when its loose from the housing its glued to just let it sit loose, be gentle while getting that loose.

now for the gps/camera, you can fit a small flat head screwdriver between edges of gps board and the plastic of the phone casing, the gps board has clip holding left side so go from the right or the same side that screw was in.

the camera is only adhered so you can put pressure to wherever you feel comfortable its actually pretty solid i have done it a few times and never harmed it.

peel it like you would a sticker down to the main board where it connects under the sdcard then pull it straight back. the last image is what the assembly looks like in tact so have an idea of where not to put too much stress when peeling it.

again DONT FLASH ANYTHING IF YOU RIPPED RIBBON TO VOLUME ROCKER!! This may wreck your main board as it did mine and you'll be stuck on sd builds until you find another main board....

HD2's with busted screens go for about $60-80 off ebay shipped. send me message if you have any q's, also that ribbon/camera/gps assembly in last picture is tested by me and fully functional, also much cheaper than a busted screen HD2 ;) ........