thanks ahawke01.
for me, the bad thing is that i can not put any file (i searched and every unlock need to put one exe file in phone's main memory).
And can not use ActiveSync either, it always device not recongnizedable, no connection.
And for flash back Stock rom, I tried with Bell Stock Rom but it as all others, after tri-color, it only shows "loading" till battery empty, nothing changed
what's the normal display if flash could be flashed back?