yeah i'm not sure what else you can do. it seems that wiping is not necessarily helping much. and flashing a rom is not working. the only thing that i think may at least getting you a workable phone is to maybe try and run a ruu. we will try a PC36IMG file and see of we can get it working. if that does not work then we will try an actuall ruu. so lets try this first:
PC36IMG_SuperSonic_S_Sprint_WWE_3.70.651.1_Radi..zip. 1.download the file
2.rename the file by erasing the "_SuperSonic_S_Sprint_WWE_3.70.651.1_Radi.." of the name so that it is just PC36IMG
3.transfer the file to the root of the sd card(no folder)
4.power off then press and hold power+vol down
5.hboot should see it and select yes to update
now once it is done you will have a stock rom. however, you will also have a stock recovery which you will not have access to. so you will need to use a custom recovery. you can get them here:
http://androidforums.com/evo-4g-all-things-root/259446-clockwork-amon-ra-pc36img-files.html. just do the same thing as you did with the ruu above. it is the same process.
hope this works otherwise you can try this:
RUU_SuperSonic_S_Sprint_WWE_3.70.651.1_Radio_2...exe
1.download it to your computer
2.run it on your computer and connect your phone when it tells you to do it. just make sure that you have usb debugging turned on.
and same thing in that you need a custom recovery so that you flash roms again.