Sequoia 15.4.1 Upgraded from Sonoma 14.7.2

[keef247]

Upgraded from Sonoma 14.7.2 to Sequoia 15.4 via USB, then updated to 15.4.1 via System Settings.

For some reason I had a nightmare reusing my existing perfectly working Sonoma config.plist, despite updating everything inside the EFI folder...

So after wasting around 7 hours across yesterday/today, I decided to just make a fresh config.plist and EFI folder, updated OpenCore/Kexts, used the latest HeliPort/itlwm for Wifi - works perfectly
For bluetooth, I used the latest 8th April 2025 BlueToolFixup, then the 24th June 2024 IntelBluetoothFirmware/IntelBTPatcher - as these were as new as I could get and worked perfectly, initially I used the 2024 version of BlueTooLFixup and that didn't work, as soon as I swapped it out for the 8th April 2025 version, bluetooth worked on boot

So if anyone has any hassle, just give up and make a fresh config.plist and a new EFI folder and start from scratch - by the time you waste hours fighting with your existing config.plist, you may as well have made a fresh one and eliminated any issues!

I did reference my previous Sonoma config.plist side by side when I found certain things not working such as my internal NVME showing as external, and copied the required fixes using ProperTree.

I'd highly recommend JUST using ProperTree/GenSMBIOS and not messing about with OCAT etc, they simply aren't needed - nor is making sure XYZ kext is in a certain order, that makes zero difference from experience, and I've even loaded up a fully working config.plist in OCAT and found the order is all over the place, so it clearly doesn't effect anything moving them up/down and is pointless IMHO!

I hope this helps someone, spec if anyone cares is:
MacOS Sequoia 15.4.1 ~ Windows 11 Professional, MITX Build:
| SAMA IM01A | Corsair SF750 | MSI B450i Gaming Plus AC | 5700X | PA120SE |
| 2x8GB 3200MHz C16 Corsair LPX | XFX SWFT 319 Speedster RX 6800 |
| 2TB Crucial MX500 | 4TB Lexar NM790 | LG 32GN600-B 165Hz |
| Corsair IronClaw | 2010 iMac full-size keyboard |

 

[AMDPUSH]

Hi, Eventually would you share your EFI by message ?
I was able to install sequoia from Sonoma 14.7 OC 1.0.3 directly to Sequoia 15.4.1 OC 1.0.4 but no ethernet ( i dont need WIFI) Bluetooth is working

 

[keef247]

Hi, Eventually would you share your EFI by message ?
I was able to install sequoia from Sonoma 14.7 OC 1.0.3 directly to Sequoia 15.4.1 OC 1.0.4 but no ethernet ( i dont need WIFI) Bluetooth is working

My EFI has different hardware to yours, you have a X570, I have a B450i, your best bet is to just make an EFI from scratch, it isn't difficult, you just need to use the guide and have ProperTree installed, that's it.
It takes around 45mins to an hour the first time you do it.

Use this https://dortania.github.io/OpenCore-Install-Guide/AMD/zen.html#starting-point