Why Do Iphone Lightning Cables Stop Working. If there is a pocket lint or crud in the lightning port it will obstruct charging. Sometimes there is a circuit in the end that gets damaged or the wires come disconnects in the ends.

For many people the charging issue originates from the port itself which has a tendency to collect dust dirt and other debris. Hence make sure to clean up the port frequently. If there is a pocket lint or crud in the lightning port it will obstruct charging.
Something is Preventing the Cable Charger or Port.
In this case dry the cable ports or replace it altogether. These are not cables purchased from Apple but they have worked until a few days ago. Even on Ebay the best you can do is about 8. If your charging cable has been submerged in water or damaged following repeated use or is corroded it wont work.
