Default [Q] Phone is Dead :(

Ok, first off i was soff unlocked.. i then updated my phone to the latest OTA sense 6. I then tried to install customs roms which ended up not booting and forcing my phone to have no OS. so not being able to access the OS or sideloading roms, i tried RUUing but couldnt get the side to side error fixed. so then i continued to try and downgrade my firmware so i can ruu the official htc 3.xx one. as soon as i downgraded to hboot 1.55, my phone isnt recognized in fastboot anymore. so i can not access my phone from either adb or fastboot. anyone have any suggestions?