This bug makes it so you can't boot any of the Time Machines IPLs.
Here is how to do it.
Enable the VSH menu (If you already don't have it enable)
Set the USB Output to Flash0 WHILE IN XMB
Pull out the battery, put it back in and hold down the button for loading what you want from Pandora.
It will load the firmware off the NAND.
This could be a potental problem, but I don't know.
Just wanted to get that out there.