Android

Mode Choice
On a Samsung device, to turn off the automatic choice of Samsung Kies, go to...

Settings > Wireless and Network > USB Settings > Ask on Connection

To Connect
Connect the device to the USB port of your computer, then from the pop-up window choose...

Mass Storage > Turn On > Connect USB Storage

To Disconnect
Click Unmount or Safely Remove the drive device from your computer first. Then, on the Andoid device choose...

USB Storage In Use > Turn Off