Certificate Management For Firmware Images; Downgrading - Digi IX40 User Manual

System administration

Certificate management for firmware images

The system firmware files are signed to ensure that only Digi-approved firmware load onto the device.
The IX40 device validates the system firmware image as part of the update process and only
successfully updates if the system firmware image can be authenticated.

Downgrading

Downgrading to an earlier release of the firmware may result in the device configuration being erased.
Downgrading from firmware version 22.2.9.x
Beginning with firmware version 22.2.9.x, the IX40 device uses certificate-based communication for
enhanced security when connecting to Digi Remote Manager. If you downgrade your firmware from
version 22.2.9.x to version 21.11.x or previous, your device will no longer be able to communicate with
Remote Manager.
To remedy this issue, select the device in Remote Manager and select Actions > Reset Device
Certificate.
Update firmware over the air (OTA) from the Digi firmware server
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Web
Log into the IX40 WebUI as a user with full Admin access rights.
1. On the main menu, click System. Under Administration, click Firmware Update.
2. Click Download from server.
3. For Version:, select the appropriate version of the device firmware.
4. Click Update Firmware.
Command line
1. Select the device in Remote Manager and click Actions > Open Console, or log into the IX40
local command line as a user with full Admin access rights.
IX40 User Guide
Update system firmware
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