Open a browser software, enter the IP address of your iDRAC interface and access the administrative web interface.
On the prompt screen, enter the administrative login information.
Factory default access information:
• Username: root
• Password: calvin
After a successful login, the administrative menu will be displayed.
Access the iDRAC settings menu, access the Update tab and select the Firmware Update option.
On the Firmware Update screen, select the desired firmware image and click on the Apply button.
If you don't have the iDRAC firmware, go to the iDRAC website and download the last version.
This will not restart the Dell server, only the iDRAC interface.
Click on the Next button and wait for the firmware upgrade to finish.
After a couple of minutes, the iDRAC interface will come back on.