Ensure you haven't renamed the XML file. The file structure is sensitive.
If your motherboard is replaced by a Dell technician, they can usually "inject" the existing license into the new board. If you do it yourself, you must backup the license file first and re-import it. 💡 Troubleshooting Common Issues Idrac 8 Enterprise License Key
Because iDRAC 8 is legacy hardware (associated with PowerEdge R630, R730, T630, etc.), the process for getting a key has changed over the years. Ensure you haven't renamed the XML file
If you need help or locating the specific firmware download for your server model, let me know! I can also walk you through the setup of the HTML5 virtual console so you don't have to deal with Java security errors. Idrac 8 Enterprise License Key