Hi friends, after following Herve's guide and many others tips on the forum for this specific latitude7400, I have been implemented most of the functions,but 5 features can't work which may be caused by USB ports limited (Canno Point-LP USB 3.1 xHCI Controller).
No Detecting(but Win10 works):
Bluetooth(DW1560 pin-masking 5 pins, Lenovo version, it works better on another Hackintosh)
WWAN Card (Huawei ME906C)
IR Camera
two USB 3.0 ports(only U disk works, but mouse can't)
microSD Card Reader
Working:
I7-8665u with CPUFriend
intel UHD Graphics 620 2048MB
Audio ALC295 layout-id 77
WLan with DW1560
I2C Touchpad
Screen Backlight control with Fn+F6/F7
Sleep and Wake
Thunderbolt 3 USB 3.1 Controller(test U disk, mouse, charging)
the clover and ioregistry files in attachment.
EFI.7z
ioregistry.7z
Thanks!
Dennis C