Installation macOS on dell latitude E5250

[UtterDisbelief]

View attachment 570872what zipped EFI? this is all i have in the usb!

Hi there.

@P1LGRIM has explained the 1689 error clearly. If you search the site you will find that you need to install an SSDT-EC.aml, or similar, in your EFI's ACPI folder.

@Feartech explained that if you wish us to help you further you need to archive your EFI folder as a ZIP file and attach it to a post (after having blanked your serial-number for privacy reasons).

For my part, there should not be a file called "boot" in the root of the EFI partition, only inside the EFI folder structure.

 

[Feartech]

View attachment 570872what zipped EFI? this is all i have in the usb!

you have to zip the EFI and upload it here

 

[Xander8421]

Ah ok... however, i think i m done with the installation, but when I try to start the os this appear

 

[Feartech]

Ah ok... however, i think i m done with the installation, but when I try to start the os this appear

graphics issue

 

[Xander8421]

even if i've activate the intel graphics?

 

[Feartech]

even if i've activate the intel graphics?

yes, that should work

 

[UtterDisbelief]

even if i've activate the intel graphics?

It would seem the iGPU is not properly recognised yet.

 

[Xander8421]

in the config.plist in "model" i've setted "intel HD graphics 5500". Is this the right model name?
my notebook have a 5500 hd graphic

 

[Feartech]

in the config.plist in "model" i've setted "intel HD graphics 5500". Is this the right model name?
my notebook have a 5500 hd graphic

yes, that is correct

you may have an issue with your ig-platform-id etc

read post 1 and 2

[Guide] Booting The USB Installer Using OpenCore

A guide in setting up your USB installer using OpenCore. You must have either a built-in ethernet or compatible Broadcom Wifi in your laptop for this guide to work. Built-in Intel Wifi can also work if set correctly...

www.tonymacx86.com

 

[Xander8421]

this is my efi folder... I entered everything as in the guide you linked me XD