Resolved MacBook Pro 15" Mid 2015, macOS Sonoma!

[ExclusiveMac]

I have an issue with my MacBook Pro 15" Mid 2015, 2.8 GHz, M370X GPU. Basically, it doesn't install properly Mac OS Sonoma. I followed step by step the video of Mr. Macintosh from YouTube, starting by creating the USB until the end of the installation, precisely like in his video.

Even during the installation, the resolution is high, everything is small, and I have a white background starting from the setup of the language, etc. And never pop up the open core screen after installation.

I upgraded from Monterey.

I use Open Core Legacy Patcher 1.2.1 and macOS Sonoma 14.1.1

Can someone help, or what needs to be done? I downgraded to Monterey, unfortunately.

 

[KhunJay]

Very brave to upgrade a 2015 machine to a 2023 OS.
My 2018 MBP i7 fully maxed on 16GB RAM is still on Mojave and zips like a bullet train.
It hasn't yet been hacked or broken into due to lack of security updates.
Battery life awesome too.

 

[oasantos1]

Reinstall the patches.

 

[ExclusiveMac]

Reinstall the patches.

Already did, obviously. No luck.

 

[ExclusiveMac]

I managed to fix it with this:

Basically, it needs to be connected to the internet and run the root patches via Open Core Legacy Patcher. That's solved the issue.

Post-Installation | OpenCore Legacy Patcher