Intel graphics 620 no graphic accelaration after post installation

[offseal]

hi i installed mac os big sur on my laptop dell latitude 7480 but after installation the wifi,bluetooth,sound didnt work i some how managed it working by adding some kexts and configuring my efi but the graphic acellaration is not working I'd be grateful if anyone offer me some tips here i have attached my efi file below.
hoping a positive reply
Thanks in advance,

 

[EliteMacx86]

hi i installed mac os big sur on my laptop dell latitude 7480 but after installation the wifi,bluetooth,sound didnt work i some how managed it working by adding some kexts and configuring my efi but the graphic acellaration is not working I'd be grateful if anyone offer me some tips here i have attached my efi file below.
hoping a positive reply
Thanks in advance,

Your EFI is not as per the guide.

 

[offseal]

could u give me some steps that i can follow to edit my EFI as iam new to hackintosh

 

[EliteMacx86]

could u give me some steps that i can follow to edit my EFI as iam new to hackintosh

Sure. Start here: