<Solved> Fails, firmware problems Monterey clover 5141

[NathanYung]

Today, I downloaded latest macOS Monterey, and build a usb boot drive, after install and reboot, screen shows firmware problems.

I edited smbios file, from iMac Pro 1,1 , iMac ……, all the same.
It stuck at firmware update.Also checked bios release date 09052021.

Maybe something broken.


Update:
I changed to opencore 0.74
It continues install after first time reboot.

Now it’s being installed.

 

[mela.pera]

I had the same problem, switched from Clover r5141 to OpenCore 0.7.4, the upgrade to Montery completed correctly.

 

[huis5]

had also this problem smbios error
after smbios change to iMac16,2 problem was gone
it finished installation Monterey

then i changed smbios back to iMacPro1,1,1(mine) or your orginal smbios before

so succesfull installation with 16,2 and than normal boot with iMacPro1,1 with Clover 5141

 

[Simon70]

This is the solution for one of my problems, but I see that is a diffuse need.
Thanks.