Damn, beat me to it...
this is pretty much what I did also.
I worked with Gadget to help me (thanks again dude
) and although you mention ignore the "theories", actually the process you did (which was what I did) covers nearly all of them.
- by formatting you prevent the "cookie" data (as can be seen by disk.bin)
- by installing a new EEPROM, your new EEPROM is married to your Hard Drive, as the new EEPROM hasnt been seen before, it becomes locked to your existing hard drive (assuming MS store all the data), thus your xbox is believed to be new and clean, (those who upgraded their HDDs without reinstalling an EEPROM have an EEPROM that doesnt match M$ records)
- by using a new gamer tag you prevent extended hard disk scanning thought to be linked to a "flagged gamer tag"
These are actually the 3 biggest theories out there and whether any or all of them are true, this method addresses all at once, in a straight forward mannor.
((- infact by having a hard switched Chip, you even fall outside a lot of supporters of the LPC scanning theory (something about them being able to activate your chip remotley - this cannot be done with a hard switch)))
My Xbox has been online again for a week now.
I must say that this process is fairly straight forward and covers most bases. Instead of slayers, I adapted my Evox.ini to format the HDD, and used a configmagic disk with the eeprom file (in data I think), replaced with the clean one I bought.
Other than that I think the methods are the same.
I might also add that before I did any of the above, I solved the problem that got me banned in the first place. In my case this was going on live with a chip on. (after flashing chip XB rebooted straight onto my friends list Do'h!)
I stoped this ever happening again by flashing a live blocking bios onto my chip. Now I cannot go on live with the chip on.
I would highly recomend others do the same if they are using a chip as this seems to be one of the main reasons people get banned. either way, if you want to stop yourself getting banned again, try and ensure you cannot make the same mistake again, whether accidental or not.
(For me I used the 256 Metoo M8+ bios) - slightly customised for personal preferance using the tool that came in the same folder from "the usual places".
Good work zoomer777 !