Downgrading OS wont work

Hello everyone,

I've been trying to downgrade from Catalina to Mojave but I cannot get it to work.

My new macbook pro got shipped with Catalina and I followed all the steps (like 10 times). I create a bootable disk, Set up de correct security settings so i can also boot from it, erase catalina and reboot from my new bootable Mojave install disk. however, it wont do the trick. anyone who can help me out?

Many thanks!
Joris
You cannot install or run a version of macOS earlier than the one a Mac was shipped with.
thanks! just found that out yes...

You're welcome
Downgrading OS wont work
 
 
Q