Category Archives: 5g

36C3: SIM Card Technology From A to Z

SIM cards are all around us, and with the continuing growth of the Internet of Things, spawning technologies like NB-IoT, this might as well be very literal soon. But what do we really know about them, their internal structure, and their communication protocols? And by extension, their security? To shine …read more

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Posted in 2g, 36C3, 3g, 4g, 5g, Cellphone Hacks, cellular network, cons, eSIM, gsm, sim card, technology | Leave a comment

Hackaday Podcast 042: Capacitive Earthquakes, GRBL on ESP32, Solenoid Engines, and the TI-99 Space Program

Hackaday Editors Elliot Williams and Mike Szczys talk turkey on the latest hacks. Random numbers, art, and electronic geekery combine into an entropic masterpiece. We saw Bart Dring bring new life to a cool little multi-pen plotter from the Atari age. Researchers at UCSD built a very very very slow …read more

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Posted in 555, 5g, earthquake, earthquake detector, entropy, Grbl_ESP32, Hackaday Columns, kerbal space program, podcast, Podcasts, soft robotics, speaking clock, TI-99 | Leave a comment

5G is for Robots

Ecclesiastes 1:9 reads “What has been will be again, what has done will be done again; there is nothing new under the sun.” Or in other words, 5G is mostly marketing nonsense; like 4G, 3G, and 2G was before it. Let’s not forget LTE, 4G LTE, Advance 4G, and Edge. …read more

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Posted in 5g, cellphone, cellular, Current Events, ehf, Engineering, Featured, fr2, machine learning, microwave, Network Hacks, Original Art, robots | Leave a comment

Hackaday Links: July 28, 2019

It looks like Apple is interested in buying Intel’s modem chip business. Seriously interested; a deal worth $1 billion could be announced as early as this week. That might look like a small potato purchase to the world’s biggest company – at least by market capitalization – but since the …read more

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Posted in 5g, ac, agc, apollo, Apollo Guidance Computer, apple, chiptune, Hackaday Columns, Hackaday links, hvac, intel, make magazine, modem, reflow | Leave a comment

5G Power Usage Is Making Phones Overheat In Warm Weather

As reported by ExtremeTech, the brand new 5G network is running into a major snag with mobile devices as Qualcomm 5G modems literally cannot handle the heat. After just a few minutes of use they’re going into thermal shutdown and falling back to measly 4G data rates. Reports by both …read more

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Posted in 5g, Cellphone Hacks, mobile data, news, overheating, qualcomm, smartphones | Leave a comment

5G Cellphone’s Location Privacy Broken Before It’s Even Implemented

Although hard to believe in the age of cheap IMSI-catchers, “subscriber location privacy” is supposed to be protected by mobile phone protocols. The Authentication and Key Agreement (AKA) protocol provides location privacy for 3G, 4G, and 5G connections, and it’s been broken at a basic enough level that three successive generations of a technology have had some of their secrets laid bare in one fell swoop.

When 3G was developed, long ago now, spoofing cell towers was expensive and difficult enough that the phone’s International Mobile Subscriber Identity (IMSI) was transmitted unencrypted. For 5G, a more secure version based on …read more

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Posted in 3g, 4g, 5g, cellular phone, encryption, mobile phone, news, phone hacks | Leave a comment