I use this post
https://github.com/AktasC/Hackintosh-Elitebook-840-G2-Broadwell/find/master?q=
With the combination of Jake file in first page
Thanks to Jake Lo
Everything is working on Mojave and the latest Catalina 10.15.1 I will post my efi in the morning
Pls help I installed mojave on HP 840 G2 with clover uefi Intel HD 5500 is working with USB WiFi but I can't get others driver working like, sleep, sound, brightness control, mouse gesture and battery percentage. Thanks
Intel HP Elitebook 840 G2 i7-5600u8
Intel HD 5500 1080 * 1920
8GB ram