I got really excited to find this in one of my internet searches today, only to realize that the project is dead in the water and still supports networks 2 generations behind what ATT supports in my area.

Any other attempts to make such a phone?

The last post on this subreddit was from 10 months ago asking the same question. Before that, it's just posts from over two years ago. I really want to buy a ZeroPhone, I considered the LightPhone but it defeats the purpose of a dumb phone. I'm guessing by now there's no chance of me getting one... is there a different phone, similar to the LightPhone or ZeroPhone that I can buy?

My current phone is aging and I've been looking at replacements, and remembered this project. But it looks like it has died off? An updated version with the new Pi Zero 2 W would simplify things a bit, I imagine, since it has the integrated wifi and all that. But everything about the project is from a couple of years ago.

I really want to build a ZP, but every time I look at sourcing the breakouts and other parts I end up BSODing about halfway through.

I'd imagine I'm not the only one here that would be interested in buying a kit, even with a price markup for time/labor?

Mother of FreeCalypso and modem developer here: I have a bunch of FCDEV3B boards in stock which will probably never get sold commercially, it won't do anyone any good if they keep sitting in the same cardboard box for the next 40 y or so and then get thrown in the dumpster when I croak, so I am looking to give them away to worthy recipients. Toward this end I am offering one free board to anyone who would be interested in integrating this FreeCalypso modem into their ZeroPhone.

Background info: at the present time I am the only manufacturer of any kind of cellular modems who freely publishes the complete source code for modem firmware and allows end users to make their own customizations to it. Absolutely all other cellular modem vendors, meaning my bigger competitors like SimCom and their chipset suppliers like Qualcomm and MTK, keep their firmware source code secret and proprietary - I am truly the lone exception in this cell modem industry. My published-source modem solution certainly has limitations: it only supports GSM/2G (voice-centric) and does not support any of the newer data-centric services, it is physically larger than the competition (the smallest I can make it is about 1100 square mm), and it is much more expensive than the obscenely cheap sheeple-oriented closed and proprietary SIM800 modules. But as the saying goes, Freedom is not free!

When I first learned about ZP, I was very disappointed that the creator chose to use a closed and proprietary modem module despite the existence of the published-source FreeCalypso alternative. I offered him a free-of-cost FCDEV3B board back in 2017 if he would do the work of integrating it into ZP and making it a fully supported option (supported no worse than the currently offered proprietary modems), but he wasn't interested. Thus I am now extending the same offer to the entire ZP community, be it Arsenijs or anyone else: you can get a free-of-cost FCDEV3B V2 modem board ($500 value) if you commit to doing the work to make it a fully supported option in ZP, such that a potential ZP assembler could choose between the proprietary SIM800 and my published-source FreeCalypso modem with equal ease.

About the size: the dimensions of FCDEV3B are 90x50 mm, it was created as a modem development board to be used standalone on a lab bench, and it was never meant to be integrated as a component into other people's projects like ZP - therefore an integration of FCDEV3B into ZP will certainly be a little bulky and inconvenient. As far back as 2017 I've been touting the idea of repackaging our FC modem into a 33.8x36.8 mm SMT module (form factor copied from a certain historical modem module which was also Calypso-based and thus has compatible interfaces and internal layout floorplan); that option is still on the table and can be turned into reality if someone pays for it, but it is not the only option: another option on the table is to produce a connectorized module with all interfaces (power & ground, PWON and RESET controls, two UARTs, analog and digital audio) brought out on a 40-pin FPC/FFC connector with 0.5 mm pitch, compatible with cheap off-the-shelf 0.5 mm FFC jumpers. If we go the connectorized (as opposed to SMT) route, the core of the module (the part under the metal shield cover) can be as small as 40x27 mm, whereas overall module dimensions will depend on the choice of mechanical mounting features and the choice of RF connector for the antenna - it would be a build-to-order (or more accurately design-to-order) product, thus all details would need to be negotiated between me and the customer.

Hello how are you ?

I hope that I am not mistaken for a forum, I am in France and it is impossible for me to find a forum for mutual assistance. I nevertheless managed to do the circuits to solder and mount my phone.

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However I have a problem with my delta-B zero phone. it starts well I have the screen which displays the menu correctly,

but the problem I can only use the keyboard once and then it no longer reads the keys. With you a solution?

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Thank you

What are the advantages of the ZeroPhone over the WiPhone? Doesn't WiPhone already cover a lot of what ZeroPhone wanted to accomplish?

What we don't have at the moment is a privacy and freedom-respecting, minimalistic dumbphone with hardware switches (link). So maybe some of these projects will start focusing on this as well thus targeting with their products a larger audience.

Looking to have some of the PCBs made. Is anyone interested in buying some?

Any news about the Project?

For the ZeroPhone to become a solution to the problem mentioned in the title, it has to have a slim design and a modern look so that people could carry it around (here's a phone design that I consider good enough). If it is too early for such "wishes" then would it be possible to sell mainboards that we could replace with the mainboards from the "dumb phones" that we buy from regular stores? Thanks.

Recently I've been reading about the shutdown on 2g and 3g networks across the states and a large part of the world on gsm networks. I noticed in the latest blog post some experimenting with the 4G modems. So I'm curious if it is a possibility that those will be an option, if they make it, for the crowdfunding campaign? I'm mostly wondering because I would really like a device that lasts longer than 1 or 2 years. I'm kind of the type of just hold onto devices as long as possible. I recently turned down buying the seeedstudio rephone and MakerPhone for the same 2g reason.

Alternative question I suppose is how difficult would it be to replace a 2 or 3g modem with a 4g one down the road myself?

Hey everyone =)

We have been developing a Matrix Client app for the ZeroPhone. Matrix (r/https://matrix.org) is a protocol used for communication and since the ZeroPhone was lacking a way of easily sending messages via the internet we have decided to use the Matrix protocol for this.

The Client is still in development and as of now one can log in to their account, send/receive messages, load old messages and view detailed information about them (time, author). We are using the matrix-python-sdk (https://github.com/matrix-org/matrix-python-sdk) for it.

It also supports token storing so you don't have to enter your account details each time you open the app.

Currently we are working on adding encryption support and additional features.

https://imgur.com/a/LXgvAws