3G Sunset Handling on TREQ317 LTE Models

As per the AT&T 3G Sunset: Product Change Notification from Telit, certain changes need to be made on the existing modems to ensure they are able to connect to the network smoothly. This can be done either by updating the modem firmware on the device or by running an AT command.

Firmware Configuration Update Requirement

Send an AT command, AT+CEMODE=2, to update the UE usage setting in the cellular module.

This command could be implemented through an Android apk. This application can either be an independent/standalone application or it can be implemented as a part of a service in the application deployed. 

Sample Application for Reference

https://github.com/Micronet-Ltd/LTEModemUpdater

The LTE modem updater app can be referenced as an example of an Android application that can establish communication with the modem and send AT commands as required for the modem configuration change.

Hint: Updater.java line 458

Best Practices

Please ensure that when the AT command is executed, no other applications are running. 

After the AT command is sent, the modem can be restarted by followed reboot. 

• Related Articles

• How to Fix ADB USB Issues

  When using a SmartHub or SmarTab there are a few things you can check to verify that ADB USB is working. First, you must install the ADB drivers and follow the instructions in this article: ...

• How to Update the Underdash OS

  Flashing the Underdash OS The Micronet Underdash OS can be updated in one of three ways: Fastboot Delta (MLD) Files OTA with RedBend NOTE: All three of these methods will perform a factory reset on the device. All applications and data will be ...

• Micronet Warranty Policy 08-2018

  Warranty Policy This warranty ("Warranty") cover each and any of Micronet Ltd. ("Micronet") hardware and/or software products ("Product/s"). This Warranty contains all the terms and conditions pertaining to Micronet's liability with regard to the ...