macos monterey update not found the requested version of macos is not available

[sounderson]

Open your config.plist with an editor like PlistEditPro app and then type in the new SMBIOS where you now have iMac15,1. Note that if you switch it longer term for Monterey you have to generate new serials and SMUUID as well.

Trs96, thank you, a question: changing it to Mac 16,2 will I get problems running MacOS Big Sur for now?

 

[trs96]

Trs96, thank you, a question: changing it to Mac 16,2 will I get problems running MacOS Big Sur for now?

Probably not as that SMBIOS is for the late 2015 iMac.