??? About Moding an Xbox

[mnr311]

Hello to anyone out there,
If you know the answer to my question or any info that would help, please post.

Thanks

I was wondering why in order to change the bios on an xbox (at least from my understanding) you need a chip. Then you also have to flash that chip?

Why couldn't one just flash the onboard bios and change the Xbox bootable files?

If anyone knows where I am going with this lend me a hand and help me understand why I couldn't do all that.

Thanks Again

-Matt