There are numerous BGA reballing methods that use to reball BGA components. Read here the different methods available to reball BGA which is available in the electronics industry. These methods are like BGA reballing using a preform, BGA reballing using mechanical fixturing, and BGA reballing using an automated solder jetting machine. Each of these methods has its place depending on the volume of the device requiring reballing. Check out more details of these methods here.