Yes mate, you can. All you need is a usb Blaster. Oh and a brain, from the looks of this post, you do not.

TGK wrote

RC4 wrote

TGK wrote It's possible, but no one has ever done it. Running unsigned code is all software hacking, but getting to that software requires hardware modding. You would need some extensive coding knowledge if you ever want to do this, lol.

The bootloaders have signed checks.
How do you expect to get passed those with a usb?

If I knew I would tell you. Xbox was made by man and man is not flawless, so when there is a will, there is a way. I've been working with trying to use modified XNA packages to run Flash360 and such. Not sure how I'm going to get hypervisor privileges, but it's just some side stuff I'm doing.

Even if you are successful at writing such a thing, you will get a e71 error since there is no jumpers