All taken from EEPROM.cfg file of my Xbox. As you can see when you replace the EEPROM you change the HDD key and HDD online key, but the HDD serial number remains all the time the same and it's not stored in EEPROM. It's stored only in the HDD, so it means that M$ is using some new spying technichs- but that was a sure thing when we've heard about for the first time

. You got banned so many times beacause you had the same HW all the time. And M$ detects it somehow.
So actually there are few solutions: EEPROM change and back to the stock HDD. Try it if you can. My friends were so dumb that they've forgotten to unlock thise 8-10 gigs, and they have changed EEPROMs 2-3 times, and forgot to make a backup of the first, stock configuration. Too bad, heh

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The second solution is to buy a new xbox.
But I don't fucking get it. Doesn't M$ loose any money on every produced and sold console? I've heard that it's about 20$ of lost these days for MS. We all use original games and bios, but they're banning us. What's the point M$? You can't find the scene and piracy, but XBL was a good argument to buy original games. There are about 9,5 months of my subscription left, and I think that I won't continue it if they will be banning me and pushing me to buy another Xbox.