This only works for a couple of years; eventually, the pocket lint permanently reduces the springiness of the contacts, such that the cable is "loose" in the so

This only works for a couple of years; eventually, the pocket lint permanently reduces the springiness of the contacts, such that the cable is "loose" in the socket, and the connection can therefore be lost by shifting the position of the phone. Fortunately, it's a simple (if tedious) fix with a $15 part.