First upgrade to the new fw. To do that, format usb to fat 32, unzip the file I uploaded here and put it on usb, insert usb into box-should say usb A connected, go to menu and choose dump by usb, save image file to usb (there will be a pull down menu so you can select image file), save to usb. Next, choose upgrade by usb, use pull down menu to select image file (abs file you unzipped) and save to box. Do not interrupt this process, when finished box should reboot with new file. To change satellite list to american: Put file that I uploaded here on usb (unzip first), insert usb in box and make sure it is recognized, go to menu-upgrade by usb, choose misc. on pull down menu (there will be another sub menu where you can choose your file) and save to box. Stb should reboot after fw upgrade, if not, reboot manually. Jsattv, there is a new american sat list on the UK site for X3. Although the f3 fw may work on x3, I would only use f3 fw on f3 and x3 fw on x3. At least till someone test one on the other, despite what yojiatech said. This is the best I can remember off the top of my head, so you may have to play around with these boxes to find better procedure. That is what I had to do. Yes, the v-format button works fine on the f3.