once again just do JTAG if you have only blue led..
if you can still power on your phone with screen works,maybe a good things happen..
if nothing you can do,with fastboot,adb,sdcard,or blue led only..only JTAG can help..
search on this site, a lo...
tested by me with 2 T-Mobile Mytouch 3G
Ezterry you are genius, as i follow your guide,with a lot of pain process,trial and error, i built my own JTAG wiggler interface and with a little mods.
everything has working..Good Job Ezterry..
now i can smile .