I bought 2 of these units from ebay. both of them came in boxes marked live plus and were sold as live plus but when I set them up the sys info says they are live per the model number. I wanted to try a firm ware upgrade and decided to do it via usb so I downloaded the most recent firmware and then put it on a clean usb stick and inserted it. When I go to firmware upgrade it just says firmware is most recent. it doesnt give me an option to look at the drive or force an upgrade or for that matter force a downgrade. Is there something I am not seeing ro am doing wrong?