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Latitude 7480: Update from Mojave to Catalina hangs


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I have a problem updating from Mojave to Catalina.
I have tried the following:
- Perform the update from Mojave. (Apple update function). Without success. (I added ECDV patch shortly before the start of the Catalina install app)
- Installation with Calatina USB stick according to instructions in the forum. (Dell Latitude / Inspiron / Precision / Vostro / XPS - Clover Guide - Dell....

There is some information in the appendix.
Which data is still needed to get support from you?
Stay healthy


Komprimierte Datei.zip

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Did you update Clover? Use the included EFI from the 2nd post, newer Clover has issue. Then copy your Config / ACPI / Kexts folder over.

Did you update the kexts?

You could try Catmater's OC bootpack here.  Just replace the entire EFI folder in the EFI partition.


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Only don't forget to change model to correct in SMBIOS: 14.3 to 14.1 fixed HDMI Out. 

14.3 have dual graphics processors -- an AMD Radeon Pro 555 with 2 GB of dedicated GDDR5 memory and an integrated Intel HD Graphics 630 graphics processor that shares memory with the system.

14.2 have Intel Iris Plus Graphics 650

14.1 have Intel Iris Plus Graphics 640


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Hi, thanks for your fast response.



i have a 7480 with i5-6300U 6.gen. with a Intel GPU HD520.


Jake Lo:

Clover is v5.0_r5122

which version do you recommend?


Use the included EFI from the 2nd post (where can i find it?)

kexts are newest Version.



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Thank you.
1. deleted the EFI folder from the EFI partition.
2. then the Generic EFI Folder from
EFI_v5119.zip copied to the EFI partition
3. copied the folder ACPI + KEXT from the EFI backup and the config.plist to the Clover folder
4. updated all kext

If change ECDV to EC is active the installation of Catalina hangs. see picture.

If change ECDV to EC is deactive, the installation of Catalina hangs somewhere else. see picture.

I have attached the dump from the Mojave.debug_22682.zip

Catmater's OC bootpack does'nt work to. Reboot again and again.



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