I'm with Heinrich on this one. It was a fairly abrupt response, yet it couldn't have been said much more politely, really.
EvoX M7 DOES NOT DESTROY XBOXES.
The BIOS didn't do anything. M$ spotted you logging on to Xbox Live whilst using a hacked BIOS, and M$ banned you for it.
If you'd read the pinned topics on the Xbox Live forum you'd have known about this before attempting it.
And you don't need a new EEPROM. You need new CONTENTS for your EEPROM. Heinrich wasn't quite correct in his answer to your exact question, but he was bloody close!
BTW, you've got to be a SERIOUS asshole to get banned here! Compared to some, your stroppy response barely registers on the assholeometer.