I Having An Issue No One Has Been Able To Fix Macbook Pro 15 Retina
Chosen Solution Can anyone help me. I having an issue no one has been able to fix. I have a 15” MacBook Pro retina (A1398) with the speakers on top next to the keys. it’s a 2nd hand laptop. I changed the SSD on the inside and I need to install the macOS onto it. I have installed the OS onto it from another laptop using external USB. I know the SSD works because it boots up just fine when I boot from USB on another laptop but it will not boot on this system probably because it didn’t install from this system it doesnt have the neccessary software/files or whatever to boot....