Chosen Solution

So, I have this case that has dust cover for the headphone jack. One day, it broke and got into the jack. A few weeks later, I forgot about that and tried to plug in my headphones and it only got deeper into the jack. Now my phone is stuck in audio output “Headphones” and nothing can be heard, even with headphones in

You can use a GripStick to extract the stuck piece: GripStick Headphone Plug Extraction Tool