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What about cheap cellular modems built in?




Is there any evidence those exist in TVs and other home appliances?

Modern cars have cellular modems, I unplugged mine, and would not hesitate to take apart a TV and physically rip off the modem.


Absolutely yes. My prescribed CPAP came with 5G that uploads data for their app and for your physician to monitor your progress. You basically wouldn’t even know it had one, the plan must be managed by the company and automatically connects where ever you take it.

https://www.resmed.com/en-us/products/cpap/machines/airsense...


Maybe not yet - but 5g was built with the idea of making them cheap. It takes a couple years to design the cheap modems and then a few more years to get them in TVs, so they could well be coming in the near future yet - only time will tell. And the modem will also be your wifi so you can't really rip it off without losing other useful things.

>but 5g was built with the idea of making them cheap

For bandwidth, maybe. It's still going to add cost to the BOM. They'll have to recoup that somehow. Say a 5G modem costs $20 (random number). For it to actually make money, it'll need to be otherwise not connected to the internet, otherwise it can just use wifi instead. Out of 100 people, how many do you think won't connect it to the internet for privacy reasons? 1? 5? 10? Keep in mind, if they don't connect to the internet, they'll need to go out and get another device to watch netflix or whatever, so they're highly incentivized to. Say 10 out of 100 don't, and with this sneaky backdoor you now can sell ads to them. For that privilege, you paid $200 per disconnected TV, because for every disconnected TV with a 5G module, you need to have a 5G module in 9 other TVs that were already connected to the internet. How could you ever hope to recoup that expense?


assume they are aiming for $1 in large quantites. I don't know thier number but that is closer. And the cost will be low because they are bulk buying excess data. They can send this at 3am when everyone is asleep so cell companies can give a deep discount.

again the above is the plan, reality often changes.


The above pricing is just for the modem itself, not the data plan. There's no way you can get a cellular modem for $1.

Adafruit sells ESP32 for less than $3. Any manufacturer can get quantity pricing to lower the cost. ESP32 doesn't have cell (AFAIK), but it wouldn't be technically that hard to add if they wanted. While $1 might be a bit on the low side, it is reasonable.

If you're planning on using the TV as a dumb display for another device, and are determined enough to physically remove a cellular modem, then the TV's own WiFi is not a useful thing either, even if integrated into the same chip.

The CPU, wifi, and modem are all in one in this future (think ESP32). That is the direction this is likely to move. You can't remove one without the rest. I suppose you could put your own CPU in and write software, but otherwise you are stuck.

I have not purchased a TV or car with these misfeatures, but I expect I will have to at some point in the future.

The most vulnerable part might be the antenna? Required by laws of physics to be a certain size and shape, and is not easily integrated into another more essential component?

If found, it can be removed entirely, or replaced with a dummy load to satisfy any presence detection circuits. But radiation can be minimized or eliminated.

Now obviously a device can choose not to function (or to be especially annoying in its UI) if it doesn't find a network. But people take cars (and TVs) to places with no WiFi or mobile coverage, and I don't know how the device manufacturers deal with that.


If you want the TV to be on your network (for casting or streaming or whatever) and you also want to filter that traffic (allowing connections only to the services you want to use) then you need it to be on your own network (wifi, if there's no ethernet port) and not on someone else's network (cellular).

I don't need WiFi, all I need is the HDMI port.

Eventually these will use mesh networks to figure this out.



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