I did not write this just found it on yahoo

Clear All Installed Game Updates and Console Cache

1. Go to the "system" blade
2. Select "memory"
3. Press Y on the HD symbol
4. Press X,X, Left Bumper, Right Bumper, X,X
5. A message will appear saying: "Do you want to perform maintenance on your Xbox 360 storage devices?"
6. Select Yes
Clear Any Failed system updates that cause the console to error.

1. With the console off, press and hold the sync up button (the small white one)
2. While holding the sync button press the power button to turn on the console
3. Continue to hold the sync button until the Console has booted up completely.
4. During the boot process the console should clear any failed updates, allowing you to use it normally.


This one work for me.
My box is up and running again

About the error you can send it in to microsoft or try to find someone local by craigslist etc. or someone on here will do it for a fee (I found someone on craigslist for my 3 red ring error)

Does the sync button thing work on jtags? Like does it revert to your last nand dump or does it just turn into a regular 9199 dash?

Sorry to bump up an old post but I reallllly need to know, thanks!

turn on your jtag with nothing in it and it should fix that problem

What do you mean? We've turned it on with no usb, disk, or harddrive but that doesn't fix it... or do you mean take out the fans and stuff?