Maybe this could work for you...just a suggestion
Originally Posted by PoXFreak
Still won't work. I have tried flashing stock firmwares, stock and non-stock recoveries, reflashing root.zip, restore from known good backups, nothing has worked. Phone is stuck at first HTC logo screen and will go no further, and with no USB connectivity, it's impossible for me to flash even PG58IMGs' because the phone is S-on.
Ok, from your reply i gather that even though you transferred the PG581MG to your SD card, the phone did not update when your got to the bootloader menu. I do not think being S-ON will prevent you from installing from the zip file...but maybe i am wrong. Hey now all i can think is this:
Turn off your phone, remove the battery, wait for some time(~10seconds), then put the battery back in. Now press Power +Vol down switch together. Now at the boot loader menu select Fastboot and press Power button. Connect your phone to your PC now and wait. The check if the next screen shows 'FASTBOOT USB'.
If you get 'FASTBOOT USB' in the next screen, then you have multiple options, but for you i would suggest that you download the latest RUU for the phone depending on your region and cid. Then run the ruu while the device is still in FASTBOOT USB mode. This will restore your phone's firmware recovery and rom back to stock.
But if your phone does not show fastboot usb then i'm stumped dude...maybe the experts here in our sensation community will be able to help out....
All the best ...and report if anything improves...