Hello. I just got a Boron 404X (HW v1.5.1) that was connecting to the T-Mobile network but now does not (e.g., blinking green). So, I reset it with the "Device Doctor" and "Device restore over USB" but I still cannot get it to connect. It has a battery and the included Particle cellular antenna. M…

I re-ran the steps to use a 3rd party SIM in case that would help but it does not. The Particle.io page about 3rd part SIM mentions UMNOPROF and the diagnostic output shows: 0000316564 [ncp.at] TRACE: > AT+UMNOPROF? 0000316567 [ncp.at] TRACE: < +UMNOPROF: 100 0000316568 [ncp.at] TRACE: < OK 0000316…

I increased your member level so you can message support with the affected Device IDs. Only enterprise users can submit tickets directly. Also include the full debugging log in the message. I can't tell what's wrong from the section in the first post. Is the first log using the Particle SIM? I cou…

Hello and thanks for the information. This is a T-mobile SIM that was working. I've moved to a more populated area with better cellular to test with the same results. Let me include a more complete log from the device doctor. Serial monitor opened successfully: > 0000003600 [app] INFO: Auto-connect…

It looks it is able to connect to cellular (there is a tower), but is unable to establish an IP data session. The most common reason this happens is that the SIM is not configured for IP data. If the SIM previously worked, that's less likely, but not impossible. It's also possible that SIM was banne…

Okay. Now I know which fork in the road I need to follow so I will go talk with T-Mobile since it was working. What in the log was an indicator? The repeated grouping of initialize/establish, disconnect/dead message pairs or something else? 0000321297 [net.ppp.client] TRACE: PPP phase -> Initializ…

Quick update... The SIM works in an iPad. T-Mobile said it's not banned and doesn't see an issue on their side with the device being banned either. But, they kept saying that U-Blox wasn't supported (certified?) on their network and suggested that I pick another cellular modem. It's like it was co…

I knew this was an issue with Verizon and AT&T, but wasn't sure if it was an issue with T-Mobile in the United States. In order to use their IoT SIMs with LTE Cat M1 devices, the device needs to be approved and the IMEI registered or the device can be banned from the network. With Verizon, you get …

Indeed. So far, no ban on the device but I've been misled by TMO in the past. So I was started looking at Particle SIM pricing but couldn't grasp how to get one. Unless the pricing is strictly block based; starting at $299/month/720K blocks that can be spread across 100 devices. Is that an accura…

That is correct if you exceed the limits of the free tier. If you have fewer than 100 devices and 720K data operations per month, it's free. There's no time limit, you can do that every month. The Particle SIM is soldered on the board, so if you switch back to internal SIM you can use it for free u…

Another Boron 404X stuck on blinking green and won't connect to network or cloud

Connectivity Cellular

rickkas7 Split this topic August 21, 2024, 9:49am 9

A post was split to a new topic: Boron 404X unable to connect

Topic		Replies	Views
Boron 404x in the UK part 2 Cloud	19	152	December 19, 2025
Boron Initial Setup Connectivity Problem Connectivity boron	7	383	February 15, 2024
Boron LTE 3rd party SIM connection troubleshooting Connectivity boron	9	919	September 16, 2020
Boron LTE- support BLE // NFC	60	10517	January 28, 2020
Boron 310 cant connect to network (stuck on green blinking LED) Connectivity boron	2	32	April 7, 2025

Another Boron 404X stuck on blinking green and won't connect to network or cloud

Related topics