Bad Xbox360 flash?

Hey yall i couple days ago i flashed my xbox 360 with benq ixtreme 1.41 and it was working fine. but then i heard that it runs better with updated versions. but i wasent in the mood to boot into the DOS using iprep so i used jungleflasher and that just made it worse. i heard that to update firmware u need to revert to original firmware so i stupidly pressed erase and it erased the firmware on the drive. DO NOT tell me there is no hope because there is hope i just need to find out how to put a firmware on there now. i cant use jungleflasher because whenever i turn on my 360 and its connect to the computer my computer freezes. i know the command in DOS fBen *serial 7* *serial 5* or whatever and im doing it right and it gets to writing bank 0, 1 , and if im lucky 2,and then the thing freezes. i think its because of incorrect DVD key, i can easily get my correct DVD key into the firmware that i placed in usb drive/BACKUP/serialcode/serialcode/BENQ-OFW
BUT HOW DO I OPEN IT?!?!? no version of jungleflasher OR firmware toolbox will open it for me so i cant get the DVD key in there..... How do i open it and how do i reflash the xbox360?!!?!?!?! PLEASE HELP

 

wrong forum. perhaps you should check out the 360 section.