There is the repack, and then there is the firmware with 83850c in the filename. I've read lots of places that you're supposed to use the repack when modding but the date on the 83850c firmware is like 3 months newer.
Can someone please clarify so i can proceed with modding the drive?

I have successfully modded 4 or 5 hitachi and one Benq so far... not expecting it to be easy but should be do-able. I hope.