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Dell latitude 5480: Big Sur installing - EFI folder required


Alex Kranich

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???

Did you add / replace with the files I attached above?

And NO, your EFI+TRY is still missing the patches in the Config file.

I've added them in my files above, have you tried them?

Compare them to see the differences?

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Update:

This is the efi folder i made following dartania guide.

https://easyupload.io/ap23tl

 

As i said keyboard and touchpad/mouse are not working 

( using a keyboard and mouse usb external, they are working)

 

here a video showing you what happens

https://streamable.com/djbz4g

 

-------------------------------------------------------------------------------------------------------

Following your corrections (Here, replace config, add SSDT to ACPI, kext to Kexts folder) @Jake Lo

here is the folder  with efi correct.

https://easyupload.io/1sg36h

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what's the status with the updated files?

From the video, looks like you have Legacy Option ROMS enabled in the BIOS. You can disabled that.

Can't read what the error said at the end of the video. You probably need to format your drive to GUID / Journal Extended. 

Select the drop down to show all devices, then selecting the root of the drive to format. Warning, this will wipe out your whole drive.

If you have Windows installed, and the format is MBR, you'll need to convert it to GUID. Also make sure the EFI partition is at least 200MB, windows create 128mb as default.

 

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This is how rebooted my notebook using the modified files as suggested.

https://streamable.com/sfc3uh

 

Regarding the error at the end that you were asking, after the page "Mac Os Catalina" i press continue and says that for install it i need internet connection.

 

Here how is actually my bios status. If can be helpful to you @Jake Lo

 

 

 

 

photo5893338520964150691.jpg

photo5893338520964150692.jpg

photo5893338520964150693.jpg

photo5893338520964150694.jpg

photo5893338520964150695.jpg

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Regarding internet i used ethernet and Miracle!

I booted and installed macOS Catalina as you can see 

 

https://streamable.com/2t8tsg

 

At the end I find those bugs.

 

_ if I unplug keyboard and mouse usb, the keyboard and touchpad/mouse of notebook are not working just the light of the keyboard.

 

- I have no WiFi icon and I don't know how to connect.

 

- if I reboot notebook i have to use all the time the pendrive for start macOS?  

 

 

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looks like you still didn't disable Legacy Option Roms in Bios...oh well up to you

for MacOS to boot from drive, you need to copy the EFI folder to the installed drive. 

Post new IOReg file with IORegistryExplorer.app v2.1, not 3.0

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