Upgrade corrupted the disk

Just to avoid any problems THIS is the proper fw for a Hub. 

I have also read that a 4gb usb pen drive worked when a larger 8gb wouldn’t. Also saw that fw will install with no internal drive present. HERE I would assume it gets installed into a ROM. REAR USB port seems to be 1st choice. 

I can’t find the thread but I know I read someone had a USB hard drive they put the fw on and flashed from it when it was stuck at 0%.