If your guys theory is correct it's not too hard to check. All you need is one valid eeprom to sacrifice. Clone it to another (preferably non live working) xbox. then purposely get it banned put the mod on and do whatever till you get that xbox to read xbox live not found. If it is truly the serial number the xbox that you did nothing too will not be able to sign on either. Then you would know for a fact that was the case. Because if that xbox can still sign on then there is a change in the eeprom.
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