How to upgrade your MacBook Pro with an SSD - CNET
How to Upgrade MacBook Pro Hard Drive (Unibody, 2009-2012): EveryMac.com
How to upgrade your MacBook Pro with an SSD - CNET
HELP] I'm trying to install patched Catalina on a Early 2011 MacBook Pro 13", 120gb SSD, 8GB RAM This error pops up. I've tried directly updating and using the bootable USB option.