Before we start:
this installation is based on the chinese tutorial of darkhandz. It includes real time DSDT/SSDT patching from within clover. This is pretty easy to install. But it is NOT suited for people with no or only few knowledge in Hackintosh Systems. If you only know how to copy commands in your shell and you dont know what they're doing,...
[Guide] Dell XPS 15 (9550) Sierra (10.12.2) Tutorial