Hi, I tried your CLOVER and get the same error.
I have a 15" Yoga:
YOGA 730 15IKB
But mine is just FHD, not 4k...
You could try my (far from perfect) EFI, see attached zip.
This is NOT MY WORK, its 99% cloned from a thread dealing with a 13" YOGA 730.
I just added stuff for Bluetooth & WiFI...