Flash Xbox 360 drive?

mc
- in Xbox
1

I once got an Xbox 360 with Jtag as a present. Unfortunately, at this age I was too stupid and uneducated, was not informed and updated all the software via LAN. Then came a Red Ring of Death. I have now bought another 360 and a Jtag is too complicated for me. I want to flash the so change the firmware of the drive. What do I need for this and how does it work?

Za