Verizon- pie update?

You have to download to your computer like smart switch
Google Verizon software support update tool for note 9

ok i downloaded the app on my pc, now when i plug my phone into the pc and click on use usb for "system update" it just re-selects use usb for "transering files"
 
ok i downloaded the app on my pc, now when i plug my phone into the pc and click on use usb for "system update" it just re-selects use usb for "transering files"

I'm not familiar with Verizon tool but if you select transfer files what happens