iATKOS | United Kingdom

My friends, I have an old MacBookPro from early 2011, model in the case states A1278. It is a 13 inch. I had a fresh install on it, but the os version doesn’t support OpenCoreLegacy. So I’ve installed the app on a newer MacBook Pro I have to make sure I can install something newer to it. I’ve download BigSur and Sequoia to give it a try. In settings, I changed the model to “MacBook Pro 8,1”, I believe it’s the correct for my computer. Popped the usb in, created the installer, it passes the integrity checks. Create the boot EFI and I use it to boot on the old MacBook. Then I choose “install Mac OS”. I get the Apple logo with a progress bar but it simply doesn’t start. It stays on zero. Nada. Doesn’t move. So I come to your help. Is there something I’m missing? Do I need an older version? More potent usb? Is there a trick I can try? Many thanks in advance.