"Due to a lot of people asking me what they are lately,I have decided to add this new section to explain it.

A KeyVault (KV) is basically a file that holds information about your Xbox and is what Microsoft uses to identify your Xbox when you attempt to connect to Xbox Live.

When Microsoft ban your Xbox they basically use the details of the KV and make it so a console with that KV in it is not allowed to connect to Xbox Live.

The method used in the past to ban your console was extracting a KV from an unbanned console and replacing the current KV in your banned console with the new one.

This made Microsoft think that it is a completely new Xbox and thus,it is not banned.

You can ONLY replace a KV in a JTAG and it cannot be done on a retail Xbox 360.

The KV of a console is stored on the console's NAND chip.

Please Note: You can ONLY extract a KV from a console which can run unsigned code. This would be a JTAG.

The purchase and sale of KV's used to be a big business for modders but now is practically dead due to Microsoft's new server checks for unsigned code.

A JTAG runs unsigned code and Microsoft's new checks instantly ban anyone trying to connect to Xbox Live with a console which is using unsigned code.

So it is no longer practical to unban your console as you cannot to connect to Xbox Live for even half a minute. "

Dvar wrote Its what the guy said above and i am trying to find a kv seller right now not much luck.