Skybox have released a new firmware for the F3S/F5S with the release note that it is to fix the Epg XMLTV download bug. This is the official release which can also be obtained from their website. This software should also work on the Memobox/Openbox etc sister brands of the same models, bearing in mind that it will change the bootup logo to Skybox. It is untested by myself at the present time and as with all upgrades they should be carried out at your own risk