adb pull /system/media/audio command works on one of my phones to copy the folder to my PC, it copies the folder's contents recursively.
However, on my other phone the USB connector is broken, and the phone cannot get a USB data connection. The phone is not rooted and it's impossible to root without losing data. The apps FolderSync, ES File Explorer and ASTRO File Manager can't see the /system folder: they see / as empty.
My plan was (1) to use a file manager to copy the contents of /system/media/audio to /sdcard/audio, and then (2) to use FolderSync to copy /sdcard/audio to Google Drive. Step (1) doesn't work, I haven't found any app so far which is able to see /system. Also running ADB over TCP would require rooting the phone, which is not possible (because I don't want to lose data and settings).
Is there a way to copy /system/media/audio from this phone to my PC?