Sierra Wireless is now Semtech

MG90 Device

This bulletin is to remind customers that AirLink® MG90 devices running MGOS version 4.4.2.0 or older require immediate action to maintain remote management capacities with AM/AMM. MGOS version 4.4.2.0 or older contains a management certificate that is set to expire on September 27, 2025, and this expiry will cause remote management functionality through AM/AMM platforms to no longer function.   MG90 routers already running MGOS 4.4.2.1 or higher already have an updated certificate, so no immediate action is required, although Semtech always recommends keeping routers up to date with the latest available firmware.

AM/AMM On-Premises

Customers running AM/AMM versions earlier than 2.17.4 are also affected by the same certificate expiration and may experience loss of device management capabilities.  

Reference: AM/AMM Certificate Expiration was previously announced on 27-January-2025 in the following bulletin.  

Upgrade MGOS Firmware 

Semtech recommends upgrading all MG90 devices running MGOS version 4.4.2.0 or older to 4.4.3.1.  Please follow the MG90 upgrade path table listed below for reference. 

Upgrade AM/AMM Version 

If your AirLink Mobility Manager (AM/AMM) instance is older than version 2.17.4, you must upgrade to AMM 2.17.5 or later to ensure certificate compatibility and uninterrupted management access.  If an AMM upgrade is required, it is recommended to upgrade AMM before upgrading the devices. 

MG90 4G Upgrade Path - OTA

OTA Upgrade Path

MG90 5G Upgrade Path - OTA

5G Upgrade Path - OTA

MG90 4G Upgrade Path – USB Stick

MG90 5G Upgrade Path – USB Stick

5G Upgrade Path - OTA

Note 1:

Customers upgrading from MGOS 4.4.0 or 4.4.1 must ensure that the EM9190 modules are running the correct carrier-specific firmware. Incorrect firmware may prevent the router from connecting to the network. Please refer to “Upgrading from MGOS 4.4.1—Confirm Correct EM9190 5G Radio Module Firmware” on page 7 of the MGOS 4.4.3.1 Software Release Notes or contact Support for detailed upgrade instructions.  

Note:

To ensure reliability of OTA upgrades we recommend increasing the ‘Download Timeout (seconds)’ setting to 7200. This field is configurable under General > Auto Software Updates or by using a template.