Category Archives: cell phone

It’s Not Too Soon to Start Talking About 6G

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We may be only a short time into 5G deployments, but discussions of the impact 6G technology will have on our lives have already started. In late 2020, the Alliance for Telecommunications Industry Solutions created a new group called the Next G Alliance to “advance North American mobile technology leadership over the next decade through […]

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How Number Recycling Threatens Your Privacy Online

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There’s a lot to think about when you or your employees get new mobile phones — plans, hardware, cost. But one thing many people don’t think about is number recycling, a common practice among providers. Take a look at how it enables some of the lesser-known cell phone cyberattacks.  What Can Someone Do with My […]

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Retrotechtacular: Mobile Phones 1940s Style

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We think of the mobile phone — well, what we would call a cell phone — as something fairly modern. Many of us can still remember when using a ham radio phone patch from your parked car would have people staring and murmuring. But it turns out in the late …read more

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The Smallest Cell Phone Picture

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Mobile phones are the photography tool for most of us, but they are a blunt tool. If you love astrophotography, you buy a DSLR and a lens adapter. Infrared photography needs camera surgery or a special unit. If you want to look closer to home, you may have a microscope …read more

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The Smallest Cell Phone Picture

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Mobile phones are the photography tool for most of us, but they are a blunt tool. If you love astrophotography, you buy a DSLR and a lens adapter. Infrared photography needs camera surgery or a special unit. If you want to look closer to home, you may have a microscope …read more

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Adding LoRa Long Range Radio To Smartphones And Connected Devices

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Would you add another radio to your smartphone? No, not another WiFi or cellular radio; a smartphone already has that. I’m talking about something that provides connectivity through ISM bands, either 433 or 915 MHz. This can be used where you don’t have cell phone coverage, and it has a …read more

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Manhole Covers Hide Antennas

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5G is gearing up to be the most extensive implementation of mesh networking ever, and that could mean antennas will not need to broadcast for miles, just far enough to reach some devices. That unsightly cell infrastructure stuck on water towers and church steeples could soon be hidden under low-profile hunks of metal we are already used to seeing; manhole covers. This makes sense because 5G’s millimeter radio waves are more or less line-of-sight, and cell users probably wouldn’t want to lose connectivity every time they walk behind a building.

At the moment, Vodafone in the UK is testing similar …read more

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Revive that old Analog Cell Phone with SDR

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With the latest and greatest 5G cellular networks right around the corner, it can be difficult to believe that it wasn’t so long ago that cell phones relied on analog networks. They aren’t used anymore, but it might only take a visit to a swap meet or flea market to get your hands on some of this vintage hardware. Of course these phones of a bygone era aren’t just impractical due to their monstrous size compared to modern gear, but because analog cell networks have long since gone the way of the floppy disk.

But thanks to the efforts of …read more

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EMMC Data Recovery From A Bricked Phone

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We’ve probably all got at least one old cell phone lurking somewhere around our bench. In most cases they’ll still work, but their  batteries may be exhausted and their OS could be an ancient version. But sometimes there will be a phone that just died. One minute the flagship model, the next a useless slab of plastic and glass with the added annoyance of those priceless photos of Aunty May’s 80th forever locked in its memory.

[Andras Kabai] had just such a device land on his desk, a high-end Sony whose screen had gone blank. Others had tried, he was …read more

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