I just picked up a cheap Galaxy S5 for use mostly as a media player, particularly when traveling (replaceable battery, 256 MB SD card capability and ability to output via HDMI). It’s running 4.4.2 and there doesn’t seem to be any updates available. Are there any newer OS versions available, and if so, do I really want to upgrade? So far it’s doing everything I need it to do, although I am still searching for a good music player. Should I just leave it as-is? Whatever shell Samsung put on it is kind of annoying, so I wouldn’t mind ditching that if I have the option.