iPhone 7 Modded to Include Fully Functional 3.5mm Headphone Jack

Former software engineer Scotty Allen has posted his second video to YouTube this week, in which he decides to modify an iPhone 7 in order to add a functional 3.5mm headphone jack into the smartphone. On the Strange Parts website, Allen explained that he spent four months on the project, working in Shenzhen, China assembling the tools, going through 7 custom circuit boards designs, and 3 disassembled iPhones to finally arrive with a working unit.

Allen said that the hardest part of creating an iPhone 7 with a headphone jack centered on the electrical design and fitting the new parts inside of the smartphone. Upon the release of the iPhone 7, Apple said that the removal of the 3.5mm headphone jack was needed to make room for the internals of the new camera system -- as well as increasing water resistance -- but Allen found that "there was inexplicably a lot of extra room" near the lower left hand corner of the iPhone 7, where he added the component.

iphone 7 headphone jack video

The modded iPhone 7 (above) compared to an iPhone 6s (below)

While Allen's feat is notable due to many iPhone users' ongoing complaints about losing the headphone jack on the newer iPhones, it isn't a practical solution for everyday users. Allen pointed out that he went through designing numerous circuit boards that were "more complex" than anything he's ever done, as well as spending money on "lots, and lots, and lots" of spare parts and advanced disassembly tools.

I’m pretty proud of the final implementation. I took apart an Apple lightning to headphone adapter, put that inside the phone, and hooked it up by man in the middling the lightning jack with a flexible PCB. The PCB has a switching chip that switches between connecting the headphone adapter to the phone by default, and then disconnecting it and connecting the lightning jack when something is plugged into it. I have a couple other timer chips that briefly disconnect everything from the phone when something is connected/disconnected to improve the reliability of the phone detecting when something is plugged/unplugged (otherwise it sometimes gets confused).

The full 30-minute video goes into detail of Allen's project, and he reveals the successful final product at the 30:00 minute mark. One downside is that the modded iPhone 7 can't listen to music and charge simultaneously, which Allen admitted would require a "pretty serious engineering effort."


Earlier in April, Allen built his own functional iPhone 6s entirely by finding spare parts in Huaqiangbei, China. His final homemade iPhone 6s was a like-new 16GB device with full functionality, including a working Touch ID Home button.

Allen ended his new video telling Apple that he "really wants to buy an iPhone with a headphone jack from you," hoping that Apple will return the 3.5mm headphone jack into an upcoming iPhone model sometime in the future. Apple is holding an iPhone reveal event in Cupertino next week on September 12, and all three new smartphones -- the iPhone 8, iPhone 7s, and iPhone 7s Plus -- are not expected to have a headphone jack, although Apple might continue to include a Lightning to headphone jack adapter in the box.

For more information about Allen's project, check out the Strange Parts website here.

Top Rated Comments

Hustler1337 Avatar
65 months ago
Great, next project: add a few ports to the MacBook Pro
Score: 75 Votes (Like | Disagree)
vvs14 Avatar
65 months ago
Not this nonsense still :rolleyes:
Not nonsense at all. I think removing all the ports that all the people use is nonsense.
Score: 70 Votes (Like | Disagree)
sracer Avatar
65 months ago
That video clearly lacks courage.
Score: 68 Votes (Like | Disagree)
obiwan Avatar
65 months ago
I'd buy it. I use the headphone jack every day on my iPhone 6 and won't upgrade it until it eventually dies a death and I'm forced to replace it with something else.
Score: 27 Votes (Like | Disagree)
bladerunner2000 Avatar
65 months ago
People are still using the headphone jack? Plebeians.
The sound quality is still superior to wireless headphones.... and they never need to be charged. And they cost way less.
Score: 24 Votes (Like | Disagree)
thebeans Avatar
65 months ago
He really HAD so be in Shenzhen to make this..... NOT.

And such a pointless waste of time..
Sooo.... he traveled to China. Met interesting people. Conducted a successful experiment to install a working headphone jack in an iPhone 7. In the process, he greatly increased his knowledge of the inner workings of the phone and adapters. Maybe made some money with views, etc. Got his name out and demonstrated his considerable skill. And you call all this a waste of time? Compared to what??? Surfing Macrumors and playing video games and picking your nose? Give me a break.
Score: 23 Votes (Like | Disagree)

Popular Stories

iPhone 14 Dummies 1 Feature

Everything Rumored for Apple's September Event: iPhone 14, Apple Watch Pro and More

Friday August 12, 2022 2:34 pm PDT by
There's just about a month to go until Apple holds its annual September event focusing on new iPhone and Apple Watch models. We thought we'd take a quick look at everything that's rumored for Apple's September event to give MacRumors readers a rundown on what to expect when the first fall event rolls around. iPhone 14 The iPhone 14 can probably be described more as an "iPhone 13S" because...
z fold 4 1

Hands-On With Samsung's Latest Foldable Smartphones, the Galaxy Z Fold and Z Flip

Friday August 12, 2022 12:46 pm PDT by
Samsung this week launched its fourth-generation foldable devices, the $1,000 Galaxy Z Flip and the $1,800 Galaxy Z Fold. Though there's no sign of a comparable Apple foldable device on the horizon, rumors suggest prototypes are in the works, so we thought we'd take a look at Samsung's newest smartphones to see what Apple needs to measure up to when a foldable iPhone does come out. Subscribe ...
iPhone 14 Pro Purple Rear Flat MacRumors Exclusive

iPhone 14 Pro: Analyst Believes Storage Will Continue to Start at 128GB Despite Rumored Price Increase

Friday August 12, 2022 7:04 am PDT by
It wouldn't be the month before an iPhone launch without a few back-and-forth rumors, with the latest debate concerning iPhone 14 Pro storage. iPhone 14 Pro render by Ian Zelbo While research firm TrendForce forecasted that iPhone 14 Pro models could start with an increased 256GB of storage, Haitong International analyst Jeff Pu today forecasted that the upcoming Pro models will continue to...
iPhone 14 Pro Purple Front and Back MacRumors Exclusive feature

iPhone 14 Is Just a Few Weeks Away: Three Tips to Prepare for the New iPhone

Wednesday August 10, 2022 4:08 am PDT by
The launch of the new iPhone 14 is just a few weeks away, meaning millions of iPhone customers will soon upgrade their existing iPhone or perhaps get an iPhone for the first time. Exclusive MacRumors iPhone 14 Pro renders by graphic designer Ian Zelbo Whether upgrading from an older model or this is your first iPhone, we've rounded up a few tips to help you prepare for the next flagship...
iPhone 14 Pro Lineup Feature Silver

Kuo: Apple to Increase Prices of iPhone 14 Pro Models

Wednesday August 10, 2022 8:22 am PDT by
Apple plans to increase the prices of iPhone 14 Pro models compared to iPhone 13 Pro models, according to analyst Ming-Chi Kuo. Kuo did not reveal exact pricing for the iPhone 14 Pro models. However, in a tweet today, he estimated that the average selling price of the iPhone 14 lineup as a whole will increase by about 15% compared to the iPhone 13 lineup. In the United States, the iPhone...
top stories 13aug2022

Top Stories: New Battery Percentage Icon in iOS 16, USB-C AirPods Rumor, and More

Saturday August 13, 2022 6:00 am PDT by
This week brought some shocking news for iOS 16 beta testers, with Apple bringing back the iPhone battery percentage to the status bar after a number of years. Other news and rumors this week included word that Apple has started recording portions of its media event planned for next month to introduce the iPhone 14 and Apple Watch Series 8, claims about iPhone 14 Pro pricing and Apple's...