Updating the IBM Installation Manager to WebSphere 8.5.x or Greater
Use this procedure to update the IBM Installation Manager.
Note: For instructions on installing the
            Update Installer itself, refer to the section of this guide entitled: Installing the WebSphere Update Installer.
        - Start the IBM Installation Manager using the - IBMIMexecutable..
- Open the Preferences of the IBM Installation Manager.   
- Highlight the Updates node and select this checkbox: - Search for Installation Manager Updates 
- Log out of IBM Installation Manager. 
- Log in to the Installation Manager and you will be prompted if a new version of Installation Manager is available.   
- On IBM Installation Manager, click the Yes button and follow the installation wizard to complete the upgrade.