Install HP SPP via powershell

When I run the commands to install the NEW SPP_2016.0.4.0:

$arg = "/use_latest","/allow_non_bundle_components","/silent","/r"

Start-Process -FilePath .\hpsum.bat -ArgumentList $arg

I get an exit code, but I have checked the GUI and there are several driver/firmware installs that can be done..

[Information] 5/2/2016 9:22:26 AM -- Exit code : 3, Exit Message : The node is up-to-date. No update is required.

What am I doing wrong?