Hi licoLFC, the YouTube video you linked to won't play. It just says just says "This video is private". Just in case my experience is useful to anyone, I've just tried (and failed) to repair the USB interface on my son's PODHD500.
His PC started saying "USB device not recognised" and he saw the USB port on the pod was damaged, so I replaced that but it didn't make any difference. (That was pretty much as I expected since the PC was able to connect and see there was a USB device present but it wasn't able to identify what it was.)
Having done some searching online, he ordered a USB chip from a supplier on eBay and asked me if I would fit it. It's a CY7C68013A-56PVXC. I changed the chip but found that the pod would not now start up. It got stuck in a cycle of constantly rebooting, just flashing up the "Line 6" splash screen over and over.
I removed the new chip and tried repowering with no chip in place. That gave the same behaviour of constantly rebooting.
Finally I soldered the original chip back in and now the pod starts up as normal, but of course the USB interface is still not working.
I don't know why it didn't work but there are various possibilities. It may be that my soldering wasn't flawless. It could be that the chip was faulty or not as labelled. It could be that the new chip needed programming to give it an identity as a PODHD500 but I have no idea how to do so.
I'm not sure if any of that will be useful info but having desoldered and resoldered these tiny 56-pin chips twice over, I think I'm done experimenting. If he wants it repaired, I think it'll have to go to a service centre who will presumably just replace the whole board.
