Is if you reset the phone to factory defaults. I find folk that tinker often find problems like this. At the shop we get to re-flash phones back to stock as well as factory reset all too often. This can upset folk that want the tinkered thing to work as tinkered. But not always going to work.
Hey,
1 hour ago when i changed my standard resolution( from 2k to 1080p) with adb i entered on youtube and when i turned on my media volume i heard a very loud noise like in video https://www.youtube.com/watch?v=GpZ7xeqiFqU.(the video name is "iPhone 5s, 6, 6s Loud Screeching Noise Sound Static Solution Fix". I dropped one time the phone 3 months ago and exposed 1 time (in the same day like when i dropped) at water.
All was good until now. The jack is working fine.
Pls help.

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