I run a program called Boinc on Windows and Android. It stores files on Windows in c:\programdata\boinc. I assume in Android it will be in Android\data, but on the phone that appears empty, even with show hidden files. When I connect to a Windows PC with a USB cable, I can see folders underneath that for every app on the phone, but they're all empty, which I know is a lie. How do I see these files? I need to change the config file in this app.