A motherboard or a main board of an iPhone 6 plus phone or computer is the main printed circuit board. The motherboard has several components including CPU, memory and it also provides connections for other components. The motherboard of iPhone 6 Plus also has several components and provides support to many units inside the system of the phone including processor and memory.The iPhone 6 Plus is a small computer which does millions of calculations within seconds. It is more astonishing to understand that for the tasks a whole floor office was used a few decades ago are done within the palm of your hand i.e in iPhone 6 Plus. Hence, the worst harm that can happen to your iPhone 6 plus is to the motherboard. However, it is not an irreparable problem and MyCelCare has a team of experts who are always available to help you out with this.