When connected via USB, the current USB connection mode also appears on the Notifications panel. Tap the connection setting to display a screen where you can change the USB connection mode. The configuration dialog allows me to choose which mode to use, not to disable multimedia transfer. 5 on my Samsung NP 350V5C-A01CA Laptop Computer. It definitly doesn't get recognised by adb when it's in MTP-mode. This is a udev script that detects and mounts a camera in PTP mode automatically.