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.
Trust me you don't want to mess with the SSD portion of these boards
If you are EU based go and complain at Apple and get a CS number. Or if it is <2 years from purchase they will fix it under warranty.