Smoother animations and icon shortcuts on supported launchers.
Whichever path you choose, always back up your data, download only from official or well-established community sources, and understand that Android 7.1.2 is an out-of-support operating system best suited for testing, development, or dedicated offline use rather than daily critical tasks. android 712 download zip file link
A custom recovery installed (like ) if you are flashing a custom ROM. A high-quality USB data cable. Method A: Flashing Official Factory Images (Via Fastboot) always back up your data