You have no idea what you're talking. for example, google nexus devices. They are "open" but the drivers for audio, radio, video, digitizer, etc are not. The c

You have no idea what you're talking. for example, google nexus devices. They are "open" but the drivers for audio, radio, video, digitizer, etc are not. The chip providers give source to Google but only allow compiled distribution. So Google makes two versions of Android before ignoring the device. If you want to continue using device with a third version, you either hope that loading same binary drivers work or you reverse engineer them. As you can imagine, nobody is able to do that for every version, so even though the nexus is open, you will ever only have two versions on Android on each. Same happens with Firefox phone i had, and will probably happen here because it's a midtier phone. If it was a low tier there were changes they could find some components the manufacturers didn't care about sharing source for drivers.