Dear @Jake Lo, thank you for all of your devotion to the whole community firstly and really appreciate！Few days ago I succeeded in installing High Sierra 10.13.6 on my Latitude e5480. Now it seems only no trackpad and hdmi signal output that I am stuck up. Trackpad can only work as normal mouse without gesture support, I am not sure if the model of my laptop support trackpad gesture. Hope you could help me with that. Thanks again!
Attachments list are specs of my laptop, EFI folder and debug file.
specs of laptop.zip