Article: You'll need this program to connect your Android to your Mac: Visit android.com/filetransfer on your Mac. Click the Download button. Double-click the DMG file after downloading. Drag Android File Transfer into the Applications folder. If you're on a Mac, open the Applications folder and start Android File Transfer. You'll see it listed in the Devices and Drives or Devices with Removable Storage section.
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Connect your Galaxy to your computer via USB. Install Android File Transfer (Mac only). Swipe down from the top of your Galaxy's screen. Tap the USB option in the Notification panel. Tap File Transfer or MTP. Click the Start menu and click the Computer or File Folder button. Double-click your Galaxy device. Double-click Internal storage. Find the files you want to back up. Right-click a file to back up and click Copy. Open the folder on your computer you want to save the file to. Right-click in the folder and select Paste. Repeat for any other files you want to back up.