This is a reccomendation! Please build your own EFI folder for hackintoshing!! Do not use others' You can use this one, but please build your own EFI, you will never know when this breaks, and since you didn't make this EFI yourself, you will not know how to fix it when it does!! and since I am NOT OBLIGATED TO HELP YOU, and I most likely WILL NOT help!!
EFI folder for Inspiron 3542 (Working Atheros WiFi!)
@acidanthera for the Opencore bootloader, Canopy, Lilu, and other kexts featured here
Precompiled own SSDT-HPET, thanks to @corpnewt for SSDTTime
The set SMBIOS is a MacBook Air Mid-2013 (macbookair6,1) which you can change.
The SMBIOS supports 10.8-11
The KEXT for WiFi supports 10.14-14
Optionally, you can add HorDNiS to run old builds of OS X (older than 10.14)
Wi-Fi
Airplay
Audio
Screen Resolution
Battery indicator
USB
Dell Sensors
iServices
Sleep mode
Bluetooth
DVD Drive
Discrete Graphics (Definitely WILL NOT WORK!!! Don't ask me to fix!!!)
Screen output
Apple Updates
Any MacOS version over Catalina
This is information on MY hardware, yours can be different!
Intel HD Graphics 4400
Realtek ALC255
I3 4th Generation
Qualcomm Atheros 9565 (Named as Dell Wireless in Windows, Nothing is different about them except the name)