[Solved] Latitude 7480: EFI folder for Big Sur installation with Olarila image

[moshau]

Can I use the EFI folders, previously shared?
to be able to install Bug Sur with Olarila image?
thanks
My laptop:

Latitude 7480 i7 7th gen
12 Gb RAM
SSd 256
wifi / BT: intel combo
Lan: intel
microSD card reader

Best regards

[Jake Lo]

@moshau

use the file posted by Chicken07 here.

You might have to add kexts for Intel Wifi / BT

[moshau]

I have to replace EFI folder on the USB pen? to be able to install from ZERO?

or can I do an update from the olarila USB, adding the kexts to S / L / E?

thanks jake

[Jake Lo]

@moshau

Yes, replace the entire EFI folder to the EFI partition of the USB. No kexts needed to be install to /S/L/E, all can be injected from the EFI partition

[moshau]

but is it to do an update?
or to install from scratch?
thanks jake

[Jake Lo]

@moshau

I don't understand your question. 

If you have already install MacOS to disk but has some issue, then replace the EFI folder in the EFI partition of the installed drive.

If your USB installer is not bootable, then replace the EFI folder to the EFI partition of the USB installer, no need to recreate the installer.

[moshau]

Thanks Jake
it worked great !!
I preferred to do a fresh install.
Everything works except wifi, but I think it's because in mojave, I was using itlwm.

Can I use that kext file, for OC?

EVERYTHING works in latitude 7480 !!

thank you very much Jake and forum

[Jake Lo]

No, you'll need the updated beta kext for Big Sur.

https://openintelwireless.github.io