How to add a headphone jack to iPhone 7
By: +David Herron; Date: September 7, 2017
Apple really screwed up the iPhone design with the iPhone 7 by not putting in a headphone jack. I don't care about their prescriptive ideas about this, we need a headphone jack dammit. This video is from the guy who built his own iPhone from spare parts he bought in Shenzen China. For this video, he'd bought an iPhone 7 in order to record better videos and found himself really wanting a headphone jack. So, he decided to launch into adding such a jack, knowing there are millions of others around the world chafing at Apple's preconcieved notions and wanting a headphone jack on their iPhone 7.
The process took 17 weeks of trial and error. He started with noting there's an empty space where the headphone jack belongs, and that it'd be vaguely possible to add hardware into that space. What took the 17 weeks is designing a custom circuit, on a flexible substrate, learning to solder flexible circuits and work under a microscope, and to learn how to assemble the result without breaking the parts. That last bit was expensive due to the large number of expensive parts he broke. But, he came out the end with success and a vow to release the design files to the public via his website, and a strong plea to Apple to add a dang headphone jack to the iPhone 8.