Hi everyone. I tried OPCore Simplify, and nothing worked for me. In any case, I had to tweak the entire configuration myself using Dortania's guide. But I learned a lot and everything works for me. I posted a thread about my EFI here on the forum. I also have a B550 motherboard. So, you were right: don't rely on it, study it and do it yourself. There are no universal methods. Sorry for my English, if I wrote something incorrectly.