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Bypassing regulatory locks, hacking AirPods and Faraday cages

lagrangepoint.substack.com

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Re: Bypassing regulatory locks, hacking AirPods and Faraday cages

#132

Earlier quoted context omitted.

You generally get a custom mold for your ear canals and a specially tuned DSP for your frequency curves + BT connection to your phone for calls, at least. Your device can be retuned over and over as long as it functions, too. What drives the prices up is a multitude of factors: High end DSPs, micro speakers which can do good sound reproduction at required frequencies, relatively low sales volume, R&D expenses and of…

Not to mention that this is paid by insurance in many countries which means there is little incentive for individuals to shop around.

It might be, but in my country, you buy them for the most occasions. I'm not aware if any insurance policy pays for them, even.

Re: Bypassing regulatory locks, hacking AirPods and Faraday cages

#133
post #31

Hey! I'm Rithwik, one of the authors of the article, happy to answer questions etc!

Mainly just wanted to say, this is an absolutely fantastic hack and I loved reading about it - thank you for sharing! I guess if I have one question, it would be... what else are you planning to do with your new Faraday cage?

I'm thinking of making it easy to "teleport" to any location within the cage

Imagine typing in coordinates or picking a location on a map, and then suddenly your phone or any other device is at that location inside the cage, by a combination of GPS, cellular and WiFi spoofing

My former manager called it a portal haha: https://x.com/masadfrost/status/1856467695606345756

Re: Bypassing regulatory locks, hacking AirPods and Faraday cages

#134
post #127
post #102

Earlier quoted context omitted.

> Ours, on the other hand, does it mod 3, e.g. 10 ^ {1, 3, 6, 9}. Thousands, millions, billions, et cetera. To make matters more confusing, for American English it goes millions, billions, trillions. For British English it used to go millions, milliards, billions, billiards, trillions, trilliards. (That 'long scale' is still the way German used to work ten years ago. No clue if it changed in the meantime.)

Haven't we given up on our scale in the UK to match the US system? i.e. the milliard was replaced with the US billion.

Anecdotally, a milliard in French is a billion in English.

Re: Bypassing regulatory locks, hacking AirPods and Faraday cages

#135
post #47

> Hearing aids typically cost anywhere from ₹ 50,000 to upwards of ₹ 8L depending on the correction capability For those who don't recognize the ₹ symbol it is the symbol for the Indian Rupee and an "L" after a number means 100,000, so ₹ 8L is ₹ 800,000. At current exchange rates that puts hearing aids in India from $600 to upwards of $9,500. AirPods Pro 2 are ₹ 24,900 ($295).

[deleted]

Re: Bypassing regulatory locks, hacking AirPods and Faraday cages

#136
post #31

Hey! I'm Rithwik, one of the authors of the article, happy to answer questions etc!

Hi Rithwik -- great work. My Nana would have been thrilled to know this was possible :) If I can ask -- what program did you use to generate the code maps in your article?

Binary Ninja: https://binary.ninja/ :)

Think someone has already linked it below!

Re: Bypassing regulatory locks, hacking AirPods and Faraday cages

#137
>modern devices position you within cities by using a combination of WiFi SSIDs + MAC addresses of routers and devices around you as well as GPS to triangulate your location. This was also the reason that our WiFi only iPad was able to display an accurate location in apps even though it had neither GPS nor cellular.

can't wait for this to find its way into Tomahawk missiles as a fallback for the jammed GPS environment

Re: Bypassing regulatory locks, hacking AirPods and Faraday cages

#139

Certificate pinning should be pretty easy to solve in this particular case: just get a proxy/VPN! The Faraday cage shenanigans are pretty cool though.

That's exactly what we did in the end—used a commercial VPN and provided internet to the device over the USB cable. Could have probably used a Tailscale on a VPS somewhere too.

Re: Bypassing regulatory locks, hacking AirPods and Faraday cages

#140

It appears that the Hearing Aid feature is actually an equalizer preset that is pushed to the AirPods and will replace your transparency mode. Apple could've just not marketed these as "hearing aids" or used the medical terminology, as every other TWS with parametric EQ and transparency mode can do the same thing, and they wouldn't have the regulatory hawks going after them. They only lose the marketing edge, but per…

the point is that they can do, in an FDA-approved manner a hearing test + tuning the hearing aid + hearing protection all in one device

and this means both that they don't have to use weasel legal language to avoid "the regulatory hawks" AND that they gain a huge air of legitimacy in their marketing as a medical device

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