Blocked on ASRock Z170 Extreme3

[madmack81]

Hi guys,
sorry for my english.
I'm trying to install OSX ElCapitain on asrock z170 Extreme3 but i'm still blocked at
AppleUSBLegacyRoot@ AppleUSBLegacyRoot::init: enabling legacy matching

I've tryed all actions that I think but always this error.

I've built a standard unibeast usb, no custom parameters, no added configurations
On bios I make all change written on the guide (I can't find CFG-Lock, Set OS Type to Other OS, IO SerialPort, XHCI options)
I've disabled USB 3.0 and alls peripherals (lan audio thundebolt ecc ecc)

Can U help me?

 

[madmack81]

I resolved with Clover USB Menu inject usb.
wow