The answer is yes a man named scotty from youtub attempted to revive the headphone jack which in the course when he was taking apart the iPhone he had realised the space which the headphone jack would have had was taken up by a vent in the iPhone 7 he removed and designed his own circuit board and put a headphone jack which the whol project went well but what puzzles everyone is why did apple remove it well Tim cooks last year explained that they wanted to move on and try something new and be modern