Lenovo Yoga 13, Clover Menu, Apple Black Screen and REBOOT ?!

Hello,

I follow the wonderful Clover Guide with uniBEAST,... Ok :
My PC : Lenovo Yoga 13, I7, 8Go, Intel Graphic
BIOS :
Hotkey Mode : Disabled,
Wireless: Disabled,
SATA Controller Mode: AHCI
PXE BOOT to Lan : enabled
Power beep: Disabled
Intel Virtual Techno: Disabled
BIOS Back Flash: Disabled
DPTF (what is it): Disabled,
Intel Rapid Start: Disabled

SECURITY :
Secure Boot: Disabled

BOOT, EFI :
EFI USB DEVICE : FIRST

Ok, i boot on USB
I see Clover Menu and Boot on MacOSX on USB.
I see a...

Lenovo Yoga 13, Clover Menu, Apple Black Screen and REBOOT ?!