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I have a mid 2012 MacBook Air I just swapped out the battery and updated to High Sierra and upon checking specs AFTER that I noticed serial # unavailable. Which version of the Blank Board Serializer do I need to run? Thanks so much for your help!
The Blank Board burner won’t help you. Once the board is set with a S/N you can’t alter it. Just like an egg you can’t break the shell twice ;-} Lets first reset NVRAM Reset NVRAM or PRAM on your Mac You may need to re-install the OS as well for the firmware updater to fresh things.
