after removing the sammy, after getting the key, which is such a simple process on the sammy.
i installed a hitachi drive, and even without the propper key the xbox installed the new update without any errors at all. updated from disk.
Hitachi was hitachi 79 drive. and was also flashed to 1,91 and there was no removal of firmware. i did this by mistake.
but wasnt a problem. LT+ 1.91 was still there after the new update and all working correctly.
i beleive its an error, incompatibility issue with old xbox360s with toshiba drives. i kn ow people who have been told by microsoft they have a modded console and that hasnt been true. the E66 error. is exactly that an error. it has nothing to do with modded drives.
i have seen them do it stocked. microsoft pffffffff. wasnt the rrod enough..
it was a 2006 xbox360.
with samsung TS-H943 swapped to hitachi 79.
Succesful update. YES.
Region- pal.
was modded. still modded
tools used. - jungleflasher and ck3 pro
E66 ERROR : GONE
microsoft help: hell no.
personal total num of rrod xbox360s : 26