Throughout the manufacturing and assembly process, there are various automated and manual checks for defects that have helped the Sony plant achieve a very low return rate for the Pi.
Of the 150,000 boards the factory has made only six have been returned and only two of those related to a genuine defect.
There are hundreds of opportunities for errors during the Pi assembly process, anything from a missing component to a defective solder joint.
Photo: Nick Heath / TechRepublic







