I had a very old BIOS and iDRAC on the server. As far as I remember it was 1.4.6 and 1.46.45, A00, respectively. As recommended, I first uploaded the latest iDrac iDRAC with Lifecycle Controller v. 2.65.65.65 and uploaded from the system level - Windows Server 2012R2. The installation was fine, but after rebooting, the system does not see iDRAC - it is not initialized at startup, it is not visible in OMSA. I thought that the problem was the older BIOS - I uploaded the latest BIOS, updated the firmware on the cards (network, disk controller). But still iDRAC Express is dead. The LCD panel on the front is not working, the fans are running at full speed ...
What else can I do besides replacing the server motherboard?
I tried to disconnect the power for a long time - nothing helps.
Is there any procedure for uploading firmware to a dead iDRAC? If so, what version? Maybe some settings cleaning?

How is it that an update can mess up like this? No version checking?

SK