Could you please specify why you would like to update the modem firmware? Are you experiencing any mobile connectivity issues? Please provide more details so we can assist you better.
The LEDs of 3G/4G/5G on the TRB500 are flashing in a fixed interval (on, off, on off, on off) all at the same time, which means no connection. Looking at the web interface of the TRB500, State says “Registered” but Data Connection says “Disconnected” and in the log I see “Mobile data disconnected (internal modem)” every minute. Then only a device reboot helps and everything works again for a few days.
We would like to review a troubleshoot file from your TRB500. I have sent you a form to fill out. Once completed, I will contact you privately regarding this issue. For the ticket ID, please use “11613”.