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Firmware 2.5.1

Released: 29 September 2026

Firmware image: not downloadable from this site. RouDem units fetch and verify firmware images themselves through the MiWire update service; see Firmware updates. Only signed images are installed; see Update signing.

No software bill of materials or component lists were published with this release. They are published for every release from the first one made after the SBOM step was added to the release process; for earlier releases they are available from MiWire on request.


title: Clearer SIM and eSIM handling in the user interface summary: Firmware 2.5.1 makes SIM and eSIM actions in the user interface report what actually happened, lets a PIN-protected eSIM profile unlock itself after activation, and shows the device header and connection status on every page.

Section titled “title: Clearer SIM and eSIM handling in the user interface summary: Firmware 2.5.1 makes SIM and eSIM actions in the user interface report what actually happened, lets a PIN-protected eSIM profile unlock itself after activation, and shows the device header and connection status on every page.”
  • A PIN can be entered for an eSIM profile before it is activated. The Roudem stores it and unlocks the SIM by itself after the switch, so a unit that is managed remotely comes back online without anyone on site.
  • The connection status in the device header now tells a working internet connection apart from a connection where DNS is failing or where there is no internet access at all.
  • Switching SIM slot asks for confirmation first and then confirms which slot is in use, with a note that the SIM information updates within a minute.
  • Setting the LED brightness confirms the value that was applied.
  • Entering a wrong SIM PIN shows how many attempts are left before the SIM is PUK-locked.
  • Add support for Telit modem: FN990A28, FN990A40 and FN990B40.
  • The device header with Roudem name, IP address, IMEI and connection status is shown on every page of the user interface, not only on the MiWire pages.
  • The result of installing, activating or deleting an eSIM profile is shown in a dialog in the middle of the screen instead of a message at the top of the page.
  • The SIM page shows only the sections that apply to the current SIM, for example the unlock field for a locked SIM, and updates them as the SIM state changes.
  • Saving on the SIM, Network and LED pages reports each change separately, so it is clear which settings were applied and which were not.
  • PIN protection on a SIM stays as configured when the Roudem unlocks it automatically.
  • The “Routing” page in the Status menu is now called “Active Routes”.
  • Installing an eSIM profile no longer ends with “Installation status could not be verified” when the profile was in fact installed.
  • Activating an eSIM profile no longer reports “PIN code failed” when the PIN was accepted or the profile has no PIN.
  • Changing the network scan mode now reports an error when the modem rejects the change, instead of showing it as saved.
  • Pages no longer stay blank when the Roudem is slow to answer while a page loads; the page retries and explains what it is waiting for.
  • The device header keeps showing the Roudem name, IP address and IMEI while the Roudem is busy.