One of the more popular developers who is into the development of custom ROM is Resurrection Remix and it has come up with an Android 5.1.1 Lollipop-based ROM that brings additional gesture controls, LED density changer, and theme chooser to the Samsung Galaxy S4.
It should be noted however that the Resurrection Remix Android 5.1.1 Lollipop ROM is specifically meant to the international version of the Samsung Galaxy S4 with model number GT-I9500.
Another custom ROM that enables Samsung Galaxy S4 users to take on the Android 5.1.1 Lollipop is developed by Bliss Pop which brings with it a lot of customization options. The ROM is based on the even more popular CM12.1 ROM from CyanogenMod, clever enough to take on the base and loaded it with even more features.
Samsung still cannot commit as to when it can officially roll out the Android 5.1 Lollipop and the Android 5.1.1. Lollipop on its Samsung Galaxy S4 but sources from the company hinted that the update will be coming even though it was not approved for the Samsung Galaxy S4 mini.
However, the same sources said that the Android 5.1 Lollipop may only be approved for the Google Play Edition of the Samsung Galaxy S4. But other sources claim that other standard models of the 2013 flagship smartphone of the Korean tech giant will also get the update as well very soon.