Hi, After experiencing some issues with my GCS connection (see this thread: https://discuss.bluerobotics.com/t/frequent-disconnections-with-omnidirectional-antenna-at-short-range/22490 ), I decided to try configuring the BlueBoat cellular modem kit. I followed this guide: https://bluerobotics.com…

Hi @MatteoBucci That looks to me like your cell tower connections are quite weak- values closer to 0 indicate more strength so -70 is a good signal vs -100 which is fairly weak … Are you using the included hologram SIM or your own you installed? Has it been activated with your carrier? Zerotier w…

Hi @tony-white , We are operating in Italy, which is why I am not using the included Hologram SIM but instead a SIM from a national operator (ho.Mobile). Before installing it in the modem, the SIM was inside a smartphone and it was able to browse the internet without any issues. I also tried using…

Hi @tony-white , a quick update: with the help of the help center and after updating to the latest versions, it’s working now. Thank you!

4G LTE cellular modem kit not working

Blue Robotics Vehicles BlueBoat

tony-white (Tony White) March 6, 2026, 8:18pm 4

Please try running BlueOS stable 1.4.3- we don’t recommend beta unless you’re after specific features, as something could be breaking the setup!
If you still have issues, reach out to the help center!

No cell connection on EG25-G modem

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