the older ilo4_273.bin file from the HPE Support Portal.
Navigate to > Firmware in the left-hand navigation tree.
Q: How do I downgrade my iLO 4 firmware? A: Follow HP's downgrade procedure carefully to minimize risks.
What is installed, and what issues are you facing? What host operating system are you running? downgrade ilo 4 firmware better
This has led to a growing demand for a safe, effective method to —not just reverting to an older version, but doing so in a way that avoids common pitfalls, preserves configuration, and ensures long-term stability.
: Older versions may be required for specific legacy management agents or language packs that were deprecated in version and later. Risks of Downgrading
Newer iLO 4 versions often break remote console functionality, especially when using HTML5 or Java-based viewers on modern operating systems. Users report issues with Java console crashes, missing keyboard inputs, and expired SSL certificates that newer browsers reject. Additionally, HTML5 console was introduced in version but remains buggy for some configurations. Downgrading to a firmware version that reliably supports Java or .NET consoles (such as 2.50 or 2.55 ) can provide a more stable remote management experience, especially when older JRE versions are required for legacy applications. the older ilo4_273
Over the years, HP has released several updates to the iLO 4 firmware, each addressing specific issues, adding new features, or improving performance. However, these updates can sometimes come with unintended consequences, such as compatibility issues with certain software or hardware configurations.
. Newer versions (v2.40+) adopted a new style with larger fonts and more scrolling. Hardware Compatibility:
: A license is typically required to access the "Downgrade Policy" settings in the web interface. Ensure it is set to "Allow downgrades" Administration > Access Settings Firmware Format : You must extract the file from the HPE package. Only the file can be uploaded via the iLO web interface. 2. Standard Downgrade Procedure (Web UI) Does anyone know anything about downgrading ILO 4? A: Follow HP's downgrade procedure carefully to minimize
Download the desired firmware version (e.g., v2.73) from the HPE Support Center . Extract the .exe file to obtain the ilo4_xxx.bin file.
Is Downgrading iLO 4 Firmware Better for Your HPE Server? . While updating to the final iLO 4 v2.82 release is usually best for security, specific home lab or custom server setups run much smoother on select older versions. This guide explains when a rollback helps and how to do it safely. Why Downgrading iLO 4 Might Be Better
: If the "Downgrade Policy" is set to "Permanently disallow downgrades" in the iLO settings, you cannot revert to an older version through standard interfaces.