nRF9151 Cellular roaming support

RE: nRF9151 Cellular roaming support

rajeev — Fri, 18 Jul 2025 17:35:19 GMT

Check also the modem firmware and if its an older version, update it to the newest. That might help as well.

RE: nRF9151 Cellular roaming support

Filip Tefr — Fri, 18 Jul 2025 10:53:11 GMT

Yes, the SIM is provisioned correctly — we’re able to connect to the network in the home country without any issues. The SIM is exclusively roaming, but we don’t experience any problems with it in general. The issue only arises when the device leaves the home country; at that point, it fails to connect to network.

I will try to collect logs and a modem trace the next time I have the opportunity to take the device abroad again and I will share them.

RE: nRF9151 Cellular roaming support

Hakon — Thu, 17 Jul 2025 18:26:59 GMT

Hello,

there isn't so much that can be checked without logs and modem trace unfortunately. Have you tried the SIM card on home network? Or is it exclusively roaming SIM?

Do you know if the SIM is provisioned for LTE/NB-IoT and not regular LTE? Do you know if it requires manually configuring APN?