Correct. Although, currently the BraX3 works on AT&T network even without the official approval. So it will work with PureTalk.
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I am new to all this technical stuff, but I really want one of these brack’s phones. I currently have T-Mobile. Where do I go to find instructions or information on how to get the T-Mobile service on the Brack‘s phone and start using it as I’m learning more and more in other words how to just get started. Also, just learning how to use this platform not sure if this is even the right place to post a question.
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I am a T-Mobile user and a Brax3 beta tester. If you have a sim in your existing phone from T-Mobile, all you need to do is remove it from the old phone and insert it in the Brax3. Nothing else needed
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As noted, T-Mobile and their MVNOs will be available “out of the box”, so all should “just work”. Possibly, and only as a “worst case”, for an MVNO an APN change may be needed in the cellular carrier settings if it isn’t detected correctly (but this is an easy change in the GUI settings).
AT&T and their MVNOs are reported as “just working” as well, but the device is not officially approved by AT&T so it may be a bit more of a possible risk if they later choose to enforce device approval.
Verizon, we think, will NOT work “OOTB” as they already enforce device approval (and it would take loads of money and regulation to get the brax3 approved). But there are reports of Verizon MVNOs working with the brax3. In addition, it is possible the cellular bands in some parts of the US may not be covered by the brax3. I’m still gathering a bit of detail in this regard.
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Thank you so much for your response. That is awesome news.
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@plamen please add:
US Mobile - Verizon (“Warp”), AT&T (“Dark Star”), and T-Mobile (“Light Speed”) networks: confirmed with stock IMEI that will only work on their T-Mobile (“Light Speed”) network.
Support confirmed that it is “up to the partner carrier” to get a device approved for the network. I was formerly under the impression they could override this, but unfortunately they can’t.
I may consider changing the IMEI to see if I can get it working on the network as a test. Pretty sure US Mobile would be good about not banning me if it goes awry, as I am a long term customer of theirs, they even worked a lot with me some years ago to get Pinephone with Mobian / Ubuntu Touch running on their network(s).
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Wirefly reports that Telcel America has been become part of Simple Mobile. Please see
Thank you.
ej
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I got this message on my Brax3 with AT&T SIM from AT&T on 7/31/2025 “Hi It’s At&T. The device you tired to activate does not work on our network. We’re here to help. Got to In-Car Wi-Fi and Wireless Internet Service | AT&T Wireless for more info and learn how to stay connected.”
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Hi Community!
I would like to use Visible by Verizon due to it’s exceptional unlimited data and hot spot plan pricing and service reliability. Has anyone attempted a IMEI change and successfully connected to the Visible by Verizon network?
Thanks!
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I dont see us celluar on the list. When looking them up it seems like they sold off to multiple carriers, does anyone know if it will work with the brax 3
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It’s the last entry on the list.
It will work on the T-Mobile network.
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@plamen can you please mark US Mobile AT&T’s network (they call it “Dark Star”) as working? I hadn’t realized that any AT&T MVNOs were working, but this post is indicating it has been working for some time, and has the APN settings that may be needed:
This means that only the US Mobile Verizon (“Warp”) network is not compatible.
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I’m on cricket wireless. I tried my sim in the phone, worked well. Got another line, the line got suspended for incompatible device. So, how is there somewhere I can read up on this imeid changing to a compatible imeid process? Thanks.
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Hi Mr. Plamen, how are you? I received my BraX3 phone and enjoying it so far. Do you happen to know how long will it take to get AT&T services to work? I know US Mobile works with Black Star but I wanted a different service. Thank you.
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So Cricket does work?
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Well, I verified that it physically works. They are still working on getting the device approval though, so it only works until their system detects the imeid and disconnects it.
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I’m such a neophyte at this phone/tech stuff. Heck, I’m still on an iPhone 8 Plus! Can I use the SIM card that’s in my iPhone 8 Plus… which has always been on the Verizon network (I got the phone from Verizon, too)? Or do I need a new SIM card to use my Brax 3 on either T-Mobile or AT&T? Those are both compatible, right? Thanks for any insight you can share with me.
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The Brax3 is not compatible with Verizon. You will need a new carrier
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Hi. I have Tello and in the chart above, it’s shown to be T-Mobile and fully compatible with Brax3. I do receive calls and texts ok on the Brax3 but the cellular data doesn’t appear to be working at home. (I have wifi off while the wifi issue isn’t yet resolved.)
I looked on Tello’s website and it says I have 4g LTE indoors and 5G in vehicle.
I haven’t taken the phone anywhere to see if the 5G is working.
My question is: is there something I need to do on the phone when at home to use the 4G LTE data?
Additionally, any time I text an attachment (photo, etc) to the Brax3 it looks like the text fails. I can’t even send a contact vcard. Is there anything else I need to know here about sending attachments via text beyond the 300kb limit mentioned above?
FYI I am brand new to Tello so I can’t tell you how it worked on another phone (at home or otherwise). We had a known incompatible carrier before Brax3 so we switched to Tello because it’s got a green light in the chart above.
Thank you for your help.
Edit: I found the phone settings to choose LTE for preferred network, and that doesn’t fix it.
Edit 2: Sorry, one more thing. The phone is showing 3-4 out of 5 bars at the top when on LTE. (It was 0-1 bar before I forced it to choose LTE.)
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Did you turn on mobile data? Settings>Network and internet>SIMs>mobile data
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