How to download pictures from phone to a USB drive

What kind of phone do you use?

If you're on an iPhone and want to transfer pics to a USB drive, you'll have to save the pics onto your computer first. It won't be hard to back up iPhone pics to computer with the help of iTunes.

1. Plug in your iPhone and open iTunes, then find the iPhone icon on the menu and click Photos tab under settings on the left sidebar.
2. Check the box to "Sync Photos" and select "Choose folder..." from the drop down menu.
3. Browse to the desired folder, and select the picture folder you'd like to sync. Click "Sync" button to start transferring.

Both devices are USB slaves. You need a USB master, such as a computer. If your computer has two free USB ports, you can connect both machines to the computer and simply drag-and-drop the pictures from one to the other,

If you only have one USB port, then connect the phone drag=and-drag the pictures to a temporary folder on your computer, then disconnect the phoe, connect the tablet, then drag-and-drop.