OCLP 0.6.1 not working on iMAC late 2013 '27

[Rubbere]

Hi all,

I hope you can help me out with this problem. I have been trying to get Monterey, Big Sur, Ventura on my late 2013 iMAC with OCLP 0.6.1
This did not work. I tried all 3 of them and also on my internal SSD but also on an external SSD. In all cases I get the black screen with stop sign as shown on support.apple.com/mac/startup

What am I doing wrong. I followed the complete guidance and steps as outlined by matt in his youtube video's like

 

[MBAir2010]

APFS?

 

[Rubbere]

APFS?

What do you mean? I try to install it on a working version of Catalina.

 

[MBAir2010]

okay that was the first mot popular PROBLEM
did you do to the OCLP thread?

 

[BrianBaughn]

I don't know Matt and I didn't watch but I'll bet his video doesn't cover all Mac models that can be upgraded via OCLP.

The official guide is excellent and has worked for me.

OpenCore Legacy Patcher

Experience macOS just like before

dortania.github.io

 

[Hombre53]

Mr Macintosh is a good source for things OCLP...