Samsung Galaxy S III User Manual page 210

7. Place the two active NFC-enabled devices back to back to
begin (1).
Note: If the Touch to beam screen does not appear on the source
device:
- Pull them apart
- Verify the image is visible in the preview window on
the source device (providing the file)
- Place them together again
8. From the Touch to beam screen, tap the reduced image
preview to begin the transfer (2). After a few seconds
(depending on file size) the recipient with then see the
transferred file displayed on their screen.
Place device atop each other
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Tap the source image