Modify modem configuration at runtime

I need to reconfigure a couple of devices in my fleet to use a new modem. Do this mean that I need to download, configure, and re-flash the SD card, similar to what is described in the Cellular Modem Setup docs?

Or is it possible to modify the settings that are currently in use. Can I:

  1. modify the settings that I originally saved on the SD card at /resin-boot/system-connections/?

  2. or, in a pinch, modify the settings via ssh in /mnt/state/root-overlay/etc/NetworkManager/system-connections, then reboot? (referencing Changing the Network at Runtime)

Your option number 2, modifying the settings via ssh seems like the best way to go.

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That seems to work. Thanks!