For $29/mo, we provide access to advanced level technicians who will answer your questions on any Macbook board related matter to the best of their knowledge promptly & walk you through how to solve your problem so you can deliver a working board to your customer.
The high sierra update? Boot from USB and check in Disk Utility if SSD hardware is recognized. Board needs BIOS update for APFS so install 10.11 and then update to latests OSX.