Cable joints is not strong emergence of the problem, there will be occasional electronic products Weld, which is supposed to individual cases, the ratio should be very few, if, there can service customers
Connection wire there is a problem of not fast welding points, electronic products occasionally appear virtual welding, this is an individual case, the proportion should be very small, if, the customer side can repair
The connection line has the problem of weak solder joints, and electronic products occasionally have faulty solder joints. This should be an individual case, and the proportion should be small. If the customer can repair it there