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.
Notably, this unofficial LineageOS 18.1 based on Android 11 build comes as a courtesy of XDA Senior Members rINanDO, ChronoMonochrome, and a host of other developers.
Moreover, it is very important to keep in mind that this custom ROM is meant for the Samsung Galaxy S II GT-I9100 variant. FYI, the Galaxy S II came with Android 2.3 Gingerbread and was updated up to Android 4.1.2 Jelly Bean.
However, if you are still hanging on with the Galaxy S II model number GT-I9100, then you can enjoy the latest features of the Android 11 operating system.
Android 11 is yet to make its way to a ton of the latest devices. So, it is nice to see Galaxy S2 from 2011 can run Android 11 after 9 years from its launch is big news.
GPS, FM Radio, screencasting, & more don’t yet work yet in this unofficial LineageOS 18.1
Well, there are plenty of features that you can operate on your device after the installation of LineageOS 18.1. Apparently, Wi-Fi, camera, audio, receive calls are all working fine.
But you won't be able to place calls, sadly. Additionally, features like GPS, FM Radio, screencasting, and a bunch of other features do not work in this unofficial LineageOS 18.1 for Galaxy S II.
So, if you were to take our word, you can install this Android 11 based LineageOS 18.1 unofficial build on your Galaxy SII only if you what you are doing.
Besides, you should always take a complete backup of the data stored on the device before going ahead with this process. The installation is compliant with Isolated Recovery (IsoRec).
Meaning that you can straightaway flash this unofficial LineageOS 18.1 ROM via Odin. Data backup is important because you will have to re-partition and wipe the internal storage of your Galaxy S II while installation.
Since the phone is almost a decade old, you may not be running it as your daily driver. I hope you don't because if yes then, technology awaits you.