Part three - temp root and Rom Manager backup
Download the PC36IMG.zip file from here
http://link.geekfor.me/rootedromzip and place it on your SD card. Don't put it inside any folders, just put it on your SD card.
Download the recovery tools from here
http://link.geekfor.me/evorecovery and unzip the folder to your desktop.
Turn off your phone, and reboot it to the bootloader by holding volume down while turning it back on. Don't let go of the volume down button until you see three Androids on skateboards.
The bootloader will ask if you want to flash the image (the one you put on your card above). Say yes. Also say yes when it asks you to reboot after it's finished.
When your phone reboots, take the PC36IMG.zip file back off your SD card. Leaving it there will cause problems, so don;t skip this part.
Next download a custom ROM. I recommend RvU, cause it rocks.
http://forum.androidcentral.com/htc...orking-4g-sync-fixed-rom-manager-support.html . Put it on your sd card, again -- not inside any other folders.
Plug your phone into your computer, and go back to your command prompt. At the prompt type in
your phone will boot to a black screen that looks like this:
When you get to that point, open the evorecovery file you put on your desktop and double click the recovery-windows.bat file. This will reboot your phone again, to a different recovery -- the good kind.
Inside custom recovery, flash a zip from the sd card is what you're looking for. Select it, and choose the ROM you downloaded earlier, and flash it. When that's finished, reboot.
Go through the setup after the phone reboots, and don't worry -- we're backing all this part up so you won't have to do it again. Once your phone is all setup, download ROM Manager from the market. Run it, and follow directions to install clockwork recovery, then back up your current rom.
This is like gold. Keep that backup safe.