https://www.instructables.com/Make-your-own-cellphone-from-scratch/

So I'm trying to make a diy phone to hide from glowniggers. The above phone is pretty cool, but it uses a 2G module. What board do I need to make a 4G phone? Preferably one that's compatible with a fun LED display like that. I need a board and microcontroller presumably or all of it on one board.

Tbh, it the linked project, I'm not really sure where the microcontroller even is.

>>2920373 (OP)
Ah, I see. The TQFP44 is the microcontroller.

In any case, I need a microcontroller and 4G module that can work together and fit into a compact form factor. Or, desu, just tell me how I can build such a phone and not be retarded.

>>2920373 (OP)
SIM808 or SIM7600 modules may do what you’re after, but you’ll need to check what bands they use and buy the one that’s most likely to be compatible in your area. Many countries are also going to Voice-over-LTE, and discontinuing voice over the standard 3G method, which is notoriously difficult to get working on non-standard phones. Would probably be easier to get a 4G data networking stack and use IRC or whatever.

I get that degoogling Android is a pain and that cheap smartphones don’t often come with unlocked bootloaders, but why not a conventional dumb phone? Surely there’s privacy-focused dumb phones out there.
Also consider the TTGO T-Call, it’s a dev-board with an ESP32 and a GSM a module already on it, adding a screen and keyboard may be pretty doable.

>>2920401
>but why not a conventional dumb phone?
this, there's even some without android,
there are linux phones too.

>>2920401
>SIM808 or SIM7600 modules
>TTGO T-Call
Very based. thanks anon. Anyway, I'm in the U.S. and we don't even support 3G anymore. I forget that yuros and others lurk this site too.

>why not a conventional dumb phone?
I need something extremely dumb, and all the dumb phones out there don't cut it. All of them have some type of apps, either 3rd party or integrated. They also all have texting which I don't want either. I need an absolute barebones slab. I don't even want a touch screen.

>>2920373 (OP)
https://circuitmess.com/blogs/resources/ringo-build-guide-ch-1-introduction-pg-1
There's one called the Ringo by circuitmess. It's an esp32 powered one with a 4g cellular radio. Sim card capable. The thing is more kid-centered, but it is programmable and easy enough to put together. The kit comes with everything you need if you don't want to do any sourcing of parts. I got one just for shits and giggles and can confirm it does work fine.

>>2920409
I've seen those before, but I think they sold out years ago.

>>2920411
So they have... Bummer. At least if you get the same hardware, you could use the programming for it at least.

With the move to 3g and subsequent generations, the glowniggers fully integrated into the modem chips themselves.
Every modem chip produced must be running the glowniggers backdoor.
This is because since 3g, modem chips are more like an entire computer in a small package. They have their own cpu, ram, storage, and operating system. This thing runs proprietary glownigger software that has direct connections to everything passing through it.

If you live in a place that has banned TDMA then you will never be free. Even most of 2g is botnet. Any digital signaling, cdma, GSM, lte, all requires the botnet hardware and software to be sold in the first world.

>>2920401
>discontinuing voice over the standard 3G
I can assure you, they're not discontinuing that. Or GSM, or analog. What they're discontinuing is selling it to you.
There are millions of old alarm systems, monitors (i.e. gas, earthquake, or water detectors that, if fail, would cause serious and permanent environmental damage) that use analog/gsm/umts/ etc.

most of the 4 and 5 G equipment is probably not to far away from being remote killswitched by the chinese. Can't say I blame them.

>>2920532
This.
I should add that you want to use chinese stuff in the US, and US stuff in china.
You don't want to use the technology of the land where they can physically touch you.

>>2920576
Haha, we're all FourChanners here. Fuck the Feds and non-white individuals, amirite?

Anyway, you seem like someone who knows their shit. Have you ever knowingly manufactured an illegal auto sear?

>>2920532
I’ve always had the suspicion of this, but has anyone actually looked with an SDR to see what unwarranted packets are actually being sent? Or tried to read the memory within? You know, like what people do with smart power meters.

I wonder if you can send valid 4G or 5G message or voice signals using an SDR, or if there’s cryptographic keys hidden in the modem hardware?

>>2920539
Depends on the country. Here in New Zealand I believe the 2G and 3G frequencies are being reallocated completely. Not sure about in the USA, but I know in Australia their 3G shutdown has been pretty poorly planned. Doubtless a lot of GPS trackers and remote sensors will stop reporting data, prompting tardy owners to upgrade them in a hurry, but I don’t see any sort of immediate existential threat.

>>2920540
True, but you never know which Americans are paying off the Chinese to get access to their backdoors. I recommend going Russian when I can, like Kaspersky antivirus. North Korean might be even better.

>>2920647
Can we even get Russian chips? What's the least pozzed 4G chipset?

>>2920406
I tried a Nokia phone with KaiOS but it was utter trash and unresponsive. Do they have a dedicated OS now or something else?

>>2920539
>analog
South American here.
Yep, they're gone. Most of their band is now used for 3G. And that's been a while.
There are even places where there's no 2G. It still exists because it work great in rugged terrain and some assholes that would complain for service outage if it's phased out, and won't change their UE. Even if they don't use it.

>>2922708
They have to redirect ridiculous amount of current

>>2922708
1G/AMPS here was around 850 MHz, so the coverage is (or was) wonderful. Goes around all manner of obstructions…
Regular 4G is typically 1900 MHz, and 5G are going to be line-of-sight many cases, so that’s a huge loss. There are lower frequency bands for 3/4/5 G, but generally speaking, they’re much higher.
Of course you need watch 4K 1Gb/s streaming movies while driving on the highway.

>>2920401
>Voice-over-LTE,
can't you just get a module that supports that? I would assume you'd need to use it on a subnetwork like us mobile or mint mobile instead of one of the major providers because the latter would refuse to activate it.

I remember that one hacking convention. They gave everyone this diy cellphone that dialed the badge number on their name tag. It wasn't wifi or anything like that. It really was a small private cellular network.

I'd like a dumb phone again, but no KaiOS. My only problem with the phone in the OP is the display. I need to keep my contacts and that display looks like ass for trying to do anything but dial manually like a landline. I'd still like to have caller ID, voicemail, call history, etc.

It doesn't really need to be on the same circuit, but I think most of my family would rather just have walkie-talkies built-in to our phones.

>>2923862
For a walkie-talkie phone, I bought a Unihertz Atom XL, though it is a smartphone. With headphone jack, removable battery, waterproof, SD slot, IR blaster, and no camera hole.

Imagine a flip-phone with a think pad trackpoint instead of the D-pad.

>>2920373 (OP)
Use case retard?
>hey I am gonna hide from glow-nig-gers
>by carrying around a tracker

>>2920373 (OP)

Every network module has a unique IMEI (International Mobile Equipment Identity) assigned to it and written on its front side.

This means you won't be hiding from shit. You need one without an IMEI # or it will just be constantly broadcasting your location to any tower in range which can be used to track you down.

I thought phone models had to be approved by networks? How does this work?

>>2924797
So long as the cellular modem chip matches one they support it should be fine, but maybe you have to spoof the ID by identifying as a phone that has the modem chip in question.

Why in the year 2025 do we not have some star trek or star wars like communicators is beyond me.
Or honestly just a watch that I can speech to text into.
But nooooooo. Gotta keep shilling enormous smart phones that don't even fit in a pocket anymore.
Fuck this gay ass world.
I just want to say hi to my wife without carrying a brick around.

>>2920373 (OP)
>to hide from glowniggers
but they utilize your sim after all

>>2920373 (OP)
Not to hate but I would go more the meshtastic route. Also investigste if you can get 2g only service in your area with that hardware.

>>2925013
Well some of the newest smartphones in some countries can talk directly through starlink satellites.

>>2925151
Rnodes is better than meshtastic as it actually does packet routing.