Follow your tutorial, iMessage, FaceTime, iCloud work right out of the box, no need to modify anything, but im stuck at step where you copy your EFI file from USB installer stick, then shutdown then boot it again, it should boot but mine keep saying that there is no bootable drive, even Windows partition is now undetectable, any suggestions?
Thank you, im newbie,sorry if i say something wrong
Edit: my device is also Dell G7 i7-8750H 8GB of RAM,1060 Max-Q and single 512GB Intel 760p, no HDD