IPhone 6s Plus why an external camera like FLiR no longer charges the phone after interaction dialog?
Check to make sure there's not any lint buildup in the Lightning port. Get a wooden or plastic toothpick (do not use anything metallic) and clean the port out, swiping from one edge to the other, then pulling out any bunched up lint or dust. Even a small amount of buildup will prevent the accessory from fully seating properly, sometimes generating a "This accessory is not supported" error, or simply preventing the device from charging, even when it has worked properly before.