Firmware Issue preventing any OS from being installed

Firmware Issue preventing any OS from being installed This is a continuation from my previous question: SSD Upgrade on Mid 2013 MacBook Air Not Working
Asked by: Guest \| Views: 158

Total answers/comments: 2

Comments display order:

Guest [Entry]

"press cmd with space then type terminal to open terminal

Type sudo diskutil verifyDisk disk0

enter password if asked

Type sudo diskutil repairdisk disk0

type y to start disk repair

Install High Sierra!"

Guest [Entry]

Had to install an Apple SSD and manually update to High Sierra. Then I could use the nvme drive and adapter.