I messed up my MacBookPro

[aeric]

Today I take out my dusty MacBookPro 2015, cleaned it up and boot it.
I saw there is an update to MacOS Tahoe.
The current version is MacOS Ventura.

I was too excited and download the update.
After reboot, the MacBook become unusable!
After login in, mouse and keyboard are not responding.
Graphics and Wifi Adapter are not working.

I found a YouTube to boot to a nightly build EFI boot using OpenCore Legacy Patcher.
Now I remembered that I installed the previous version using this app.
With the guide I could barely login to the desktop and able to access the USB drive.

After trial and error I think I need to reinstall the OS (slightly older than Tahoe - which is Sequoia)
I found some Github repos and the following repo is quite interesting.
https://github.com/LongQT-sea/macos-iso-builder

I am now downloading the dmg file. Hopefully I can recover the OS.

 

[Filippo]

Hi @aeric ,

I recommend using Time Machine; that way, you won't have those kinds of problems again.
This time machine has saved me from such problems many times.

 

[aeric]

So...
OpenCore Legacy Patcher can also use to build hackintoch.
If anyone hate Windows 11, install MacOS on the PC.
Then running B4X IDEs using Crossover or other Wine products.

 

[aeric]

Just to continue the story...
I was sleepy and my brain must be not working correctly.
I wiped the whole ssd and I can't even boot into the OS.

The solution is to download the last official version that the model supported. Monterey.

Using Balena Etcher, I flashed the Monterey.dmg.img into an USB and install successfully a clean OS.
Once I am inside the macOS, I can install OpenCore and create a Sequoia installer. After updated to the new OS, apply the root patch.

 

[hatzisn]

Just to continue the story...
I was sleepy and my brain must be not working correctly.
I wiped the whole ssd and I can't even boot into the OS.

The solution is to download the last official version that the model supported. Monterey.

Using Balena Etcher, I flashed the Monterey.dmg.img into an USB and install successfully a clean OS.
Once I am inside the macOS, I can install OpenCore and create a Sequoia installer. After updated to the new OS, apply the root patch.

I tried just for fun to download the Tahoe and tried to install it in VirtualBox. I failed drammatically. It was searching for UEFI cd rom and the EUFI hard disk. I then searched for a solution in YouTube. Most of the videos are for installing Tahoe in VMWare.