Tap an ISO file, now your phone is a CDROM with that ISO as the CD! Tap a new ISO and the USB is torn down and restarted with the new disk.
This is tested only on a OnePlus 3T. It will only work if you see a CDROM (usb mass storage device) when you plug your phone into your computer. If you don't see it, your phone isn't compatible, so please don't try.
WARNING: This app uses root and needs to modify one file on your Android /system partition. Changing files on /system means you can no longer do binary-patch style OTAs, only full-ROMs! You have been warned! The change is that /system/etc/usb_drivers.iso is changed to a symlink. The original is renamed .orig.iso
DISCLAIMER! I take no responsibility for this software. If you install it and it causes your phone to melt, start a thermonuclear war, or it rapes your dog ... I am NOT responsible!