Chosen Solution
So I used the dosdude1 patcher on my MacBook to get Catalina running on it but I was experiencing some issues (not logging in, infinite loading while logging in), recovery mode doesn’t work (tried cmd + r, cmd + option + r, etc) tried removing ram and disconnecting battery and HDD, won’t show boot options when you hold option at start up. I can’t use it at all…. any ideas?
Let’s disconnect the battery as well as the internal drive and all other external connections, now press the power button for a good 15 secs. Now with your system on its side plug in the MagSafe charger and the power button again, did the fan startup? Give it a few minutes do you get the blinking question mark in the folder? If you did plug in the bootable USB drive did it grab?