LineageOS 18.1 Based On Android 11 Available For Samsung Galaxy S II Advertisement Advertisement The second iteration of the original Samsung Galaxy S, the Galaxy S II still has some life left in it. Because Samsung Galaxy S II can experience the Android 11 via an unofficial build of LineageOS 18.1. Thanks to the open-source nature of Android, several older Android device owners can still experience the latest version of Android. And one of the most popular custom ROMs, LineageOS, is now available. Although unofficially, this is a great sight for Samsung Galaxy S II owners to get a taste of the latest Android 11, after 9 years of its release.