First of all u need a rooted phone(KingRoot is the best root tool for Android ) Install flashify from the play store Install custom recovery like cmw/twrp(download for ur device from XDA) Flash Xpose flash file via recovery(it is different for lollipop and marshmallow) Download and install Xpose installer Install Android N-ify Now you have a system UI of android N (All the files available can be downloaded from XDA site or google it) Or here xposed*.zip Must be flashed with a custom recovery (e.g. TWRP) to install the framework. SDK21 is Android 5.0 (Lollipop), SDK22 is Android 5.1 (also Lollipop) and SDK23 is Android 6.0 (Marshmallow). I only support the latest Xposed version! xpose.zip unistall xpose