

Make sure the cIOSes are in the correct slots and the correct versions.(it sounds like you have already done this so feel free to skip it) I think they have a factory default option. I'm just including what you've done here to try to make the answer as complete as possible in case anyone else needs help in the future. I think you've already tried some of them so skip suggestions 1 and 2 (and any others you have tried).

I might suggest the following trouble shooting steps. It usually seems to relate to the settings in USB Loader GX or a corrupted file on the SD card or usb drive.

I've had some similar issues with USB Loader GX in the past.
