A bit of a fiasco for me because I wiped the drive before updating the firmware, since I didn’t realize it was going to be an issue. Both recovery methods wouldn’t work ( original OS or latest OS ). So I needed to get an old OS on the drive somehow. Short answer I booted the wiped laptop in target mode and Carbon Copy Clone an old OS onto the wiped drive. After that I had control of the machine again, which allowed me to run the firmware app. Long Answer: All other machines in the house are macOS 11 so I couldn’t clone any of those because the firmware app won’t run under macOS11. LAPTOP 1 ( with accidentally wiped OWC drive) (1) power off (2) power up in Target mode ( boot while holding t key) LAPTOP 2 (1) install vm fusion (2) create a macOS 10.10 virtual machine 10.10 virtual machine (1) mount external drive (2) Carbon Copy Clone virtual drive to external drive (because virtual machine does not recognize Target Drives). (3) unmount external drive LAPTOP 2 (1) mount external drive (2) mount Target drive...