If the firmware update should fail against expectation, please check the following points:
- Were the instructions correctly followed?
- Is a network connection available?
- Was the browser cache deleted?
If the firmware and / or kernel update failed, you can easily reinstall the firmware of your smart monitoring & control unit with the CPU Tool
Each firmware update comes with a English language manual in the form of a pdf file. Please also note the "Readme.txt". Here in this wiki for Infrastructure Security Technology, you will also find detailed information on the topic of firmware. In general, there are 3 different possibilities for a firmware update of your SNMP monitoring hardware:
- via the multilingual web interface
- via USB stick
- via the easy-to-use CPU tool under Windows OS
Simply said, firmware is software that is permanently stored in your networked remote monitoring appliance. The firmware is the link between the monitoring hardware and the operating system. The firmware of the Didactum devices is located in flash memory and can be updated. Here Didactum provides for the current models in regular / irregular intervals so-called "firmware updates", which can be requested free of charge from the support team.
The factory pre-installed firmware in your SNMP monitoring system can be updated on request. Of course there is no obligation to update this firmware. An update usually serves to extend the functionality. For example, the firmware update of November 2020 provides a new dashboard function.
Support for the first generation of IT monitoring and network monitoring devices from the years 2012-2016 has expired. The final firmware called "Didactum FW 2.6.3b588" was released on September 30, 2016. Didactum offers trade-in of qualified monitoring devices. The Trade In also applies to products of other manufacturers. Simply contact our competent sales team.
The firmware installed on your main sensor units is from 2017, this release is too old to perform a direct update via web interface. Please follow the instructions and install the latest firmware with the CPU-Tool under Windows OS. Afterwards the server room monitoring units will work again as desired.
The kernel is the hardened Linux OS of your rack monitoring unit. Using the date display, you can see if the installed operating system is up-to-date. Please note that a firmware update via the web interface of the unit does not update the kernel. This is done with the Didactum CPU Tool. You can read how this works in the English-language operating manual, which comes with every Didactum firmware file.
You did not restart your remote measuring and monitoring device after the firmware update. Under "System Menu" you will find the Point "Reboot the system". Please click on it and restart your environmental monitor. Please close your web browser and empty the cache. After a few seconds, you can log in again. The onboard temperature sensor will now display the correct value.
In order to restore your Didactum Environment Monitoring System (connected to the power supply) to the default delivery state, you only need to jumper the DIP switch to the recovery position. All individual settings will be permanently deleted. After 15 seconds, please return the DIP switch to the normal position. The environmental monitoring device is then reachable under the default IP address "192.168.0.193". The login is "guest" / "guest". Then you can restore the backup of your configuration. Alternatively, you can "refuel" your Didactum Environmental Monitoring System using the CPU-tool included in the firmware file.