Samsung GALAXY SIII User Manual page 192

5. When updating software, once the update file is
downloaded, you can delay the update on the start
screen by postponing it for a certain period of time. If
you want to resume the update before the selected
time, touch Continue update.
6. Set the following options as needed:
• Auto update: When enabled, Software update periodically
checks for updates automatically.
• Wi-Fi only: When enabled, software updates download only
over a Wi-Fi connection.
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