You probably won’t ever want it now but there is an unofficial LineageOS v19.1. There is an unofficial PixelExperience 13; however Stock Firmware, it’s now
Category: Firmware ROMs
It’s not particularly elegant, but modifying the binary directly is nothing if not universally applicable, so long as you know the details of the file
This ROM is based on the latest Android 7.1.1 Nougat OS and is completely stable according to the developer. Since Galaxy A5 has some amazing