Mobile Network Operators - MNO - have planned for 2019/2020 to upgrade the 4G protocol broadcasted on their networks.
By doing so, many industrial modem-based devices which embed a specific modem chipset - the Intel XMM71xx and XMM72xx - will no longer be able to connect to this updated 4G network.
Some Ewon devices embed these 4G EU (Europe) or 4G NA (North-America) cellular modems and must update their 4G modem firmware to continue connecting to a 4G network.
The current Ewon devices in the need of this update are the following ones (based on their serial number):
Note: Ewon devices have a WAN fallback mecanism. This means that if the Ewon device cannot connect to the 4G network, it will fallback to the 3G/2G network.
To update the modem firmware, 3 differents methods exist:
Regardless of the method used to update the modem firmware of your 4G-based Ewon, the update can last between 5 to 15 minutes.
We recommend updating the modem firmware while the Ewon is already powered on.
The Ewon SIB Fix Tool is the easiest solution to detect, identify and update the Ewon(s) that are connected to your network (physical network, just like eBuddy, or VPN through eCatcher).
This tool is useful if your Ewon(s) is located on a remote site or elsewhere on your physical network.
Download the SIB Fix Tool
Detailed information and process in our document.
The Ewon Cosy 131 and Ewon Flexy can be updated using an SD card.
To do so, you will need to copy the below .edf file (depending on your model) on the SD card and insert this SD card into your Ewon.
You can update the modem firmware of your Ewon by following the same process as updating the OS firmware of your Ewon.
Download the .edf files:
The Ewon owns an FTP server that you can use to update the modem firmware.
To do so, you need to open an FTP connection with your FTP client to your Ewon and drop the .edf file (depending on your model).
To confirm that the modem of your Ewon has been successfully updated, you should verify its version.
The version the modem firmware must be one of the following (depending on the model):
The modem firmware version can be verified by browsing in your Internet browser to Ewon web interface > Status > System Info > Info.
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