After i finished updating macOS High Sierra on HP x360 15-u011dx Haswell HD4400 i7-4510u, I started to update my daughter Dell Inspiron 7352 Broadwell HD5500 i7-5500u. It was a little harder but it works quite nicely. The new Clover is Buggy with the cache that cause "Error loading Kernel Cache..." that I had to re-install the OS. Kernel Panic all the time until I got the config.plist and kexts correctly. Now it's a perfect little 13" MacBook Air7,2. If you have anything thing with a "u" at the end of the CPU, don't use macbook pro, it doesn't do you any good.
I'll have full tutorial soon.
Make sure to have en0 built-in without Ethernet Built-in