(I can’t find a way to send private messages.) @noalternative Enjoy LineageOS w/ MicroG. It sounds like we’ll never get official Lineage 15.1 on S4 because it requires some reversions (see the FAQs: https://forum.xda-developers.com/galaxy-s4/i9505-develop/rom-lineageos-15-1-t3816279 ). There are unofficial builds, but the one I’m using from Exodusnick is still a little laggy and quirky as of the Jan 1 update.