Android g900vvru2dpf4 update, no Linux connect

After I upgraded to the latest Android g900vvru2dpf4 software, it no longer wants to show any files when I connect via USB to my PC. Tried reconnecting physically several times. No joy. I’ll keep messing with it in case I missed something.

EDIT: Had to go into developer mode and change USB setting from charge to connect. It will still charge but now the computer sees it as a device and can connect.