As you may have heard, AT&T has planned on shutting down its 3G cellular network on February 22, 2022, on all the US territory.
This means that end of February 2022, devices using 3G services to connect to the AT&T network will no longer work in the USA.
Some of your customers can or will be impacted by the AT&T mobile network modification.
Impacted Ewon devices
→ Ewon Cosy 131 3G: EC6133D
→ Ewon Flexy 3G extension card: FLB 3202
→ Ewon Cosy 131 4G (USA - North America): EC6133H
→ Ewon Flexy 4G extension card (USA - North America): FLB 3205
This is due to 2 phases:
Therefore, some actions are required to ensure best service continuity for all customers. You can choose one of the following recommendation.
Recommendation #1: Ewon firmware update
Depending on the modem firmware version, the modem is either set in "Voice centric" or in "Data centric" mode.
The easiest way to make sure the modem is in "Data centric" mode is to install firmware version 14.5s1 on the device, which will verify and set the modem into "Data centric" mode if required.
To perform the upgrade, the user can connect through eCatcher & use eBuddy to update the Ewon remotely.
Recommendation #2: Ewon modem update
Depending on the production date of the Ewon device, the modem firmware may not be the latest available one. In this case we highly recommend upgrading the modem firmware version to 20.00.507
This modem firmware version improves global stability & ensures that service request to the network will be properly performed (in “Data Centric” mode).
The modem firmware 20.00.507 is already embedded in:
Firmware version & upgrade process are available on Ewon website