After you check to see if your system software is up to date, you can download the latest software release from the support site.
To obtain a new release of code for a system update, access the following site:
https://datacentersupport.lenovo.com/
The code is installed directly on thesystem. System code updates can be completed only in a strict order. The rules for updating from any version to the latest version are also provided on the website.