iATKOS | United Kingdom

Hi,I know that it’s an old version,but,I was trying to instal Mavericks on my Asus Laptop (Model Tp550lj: Processor: Intel i5 5200U RAM: Previously 4gb,but upgraded with 8gb GPU:Nvidia Geforce 920m ). I crated the usb installer with Unibeast and,when I try to boot the installer,the screen goes completely black. I’ve already tried with these boot flags: • -x -v • -x -v -f GraphicsEnabler=No PCIRootUID=1 • -x -v -f GraphicsEnabler=No PCIRootUID=1 nv_disable=1. Can someone help me?