For those of you who miss the iPhone headphone jack, you’re definitely not alone. But Strange Parts creator Scotty Allen missed it so much that he decided to add one to his iPhone 7. He just posted a video of the project’s entire saga, with all of its many ups and downs, and in the end he holds what he set out to create – a current generation iPhone with a fully functional headphone jack. It turns out, real courage is adding the headphone jack back to the iPhone.
Source: Hobbyist gives iPhone 7 the headphone jack we’ve always wanted
-Headphone jack is an industry standard. USB C and Lightning are NOT industry standards across brands, therefore making compatibility an issue.