You can just downlaod the original bio from the usual places -
look for you xbox version # - then look for that K number your xbox has 3944 etc.
downlaod teh bio from usual places - then send file to your C root. - flash it using Xenium OS - do not flash like TSOP - flash like a dashbord - you know.
flash it like if you flash UnleasxhX, Avalaunch, etc.
Then jusy launch it - it works 100% - works for live and everthing like normal - That is what I did, works excellent