[aurizon]

This is not so easy. The Surface Books are made with a number of snap together modules, via fine cable runs and multi-pin connectors. Each part is made with care and subjected to detailed tests, that include a term of power-on burn in for the major parts with infra-red smart vision that looks for any hot spots (that might lead to failure). Then they are assembled with in progress tests at some points until the final productis made and it is tested after they add the SSD with all the operating system installed. There are assorted areas partitioned on the SSD that might hold an OS recovery partition, as well as other software provided by others as choice ware (since so many people like this so called bloatware not installed). Then it will be placed on a burn-in rack at a higher temperatrure than room temp and some sort of test program will be run on a recurrent basis. Those that pass are packed and shipped, those that fail are analyzed for faults and any faulty part replaced and it is re-tested. A lemon with recurrent faults will probably be gutted to find the part with an enduring fault. Once in the field, it is rare for part level test and repair to be done. Those boards are marked as scrap with dye?? and sold in the scrap boards auction in schenzen. Buyers buy these boards and perform some analysis of them, or simply remove certain high value parts and sell them to other repris shops. Often many parts are tossed because these parts lack detailed information on them abd are not worth salvage. There are board maps online, so higher value parts like inductors, crystals, GPS etc have known locations and are removed and segregated for sale to hobby shops etc.

https://hackernoon.com/the-gladiator-pit-of-hardware-startup...

https://www.youtube.com/watch?v=leFuF-zoVzA&feature=youtu.be...

https://www.youtube.com/watch?v=eUQzAhOVj70