Hi, @Venkata Kondraju @MaLd0n
I have a Dell XPS L502X notebook, I believe it is similar to yours. Here's the configuration:
Core i5-2450M Sandy Bridge
Intel HM67 Chipset (Cougar Point)
8GB (2x4GB) DDR3 1333Mhz
Intel HD Graphics 3000
Sandisk SSD 240GB
Intel Centrino Wireless-N 1030 BGN 1x2 HMC
Lan Realtek RTL8168/8111 Gigabit Ethernet NIC
Audio Realtek ALC665
But I disabled Nvidia Optimus by changing the position of the resistor on the Motherboard. I tried to follow your tutorial but this notebook doesn't have UEFI function only Legacy (MBR).
Can you tell me if it is possible to install macOS Mojave on this model with Legacy BIOS?