Explanation: Netflix officially realeased for 5 devices because those are the ones that the devs tested with. They knew there would be issues with untested devices (fcs, crashes, no video/sound, etc) so they coded the app to refuse to play on anything but the tested 5. All this hack does is circumvents that restriction by making the app think you are on one of the supported ones. There some devices which seem to work fine with the app but were never tested by the devs. Such devices as the nook color, the LG optimus S/V. These work perfectly after this while others still may have problems.