Sharp AQUOS Crystal - Manual (Page 332)

Connectivity 323
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Network notification: When enabled, your phone alerts you when a new Wi-Fi network is
available.
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Keep Wi-Fi on during sleep: Specify when to switch from Wi-Fi to mobile data for data
communications, when the device goes to sleep (when the backlight goes out). This setting
can affect data usage, since the data connection will remain active even when the phone
screen is off.
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Scanning always available: When enabled, your phone will allow Google location service
and other apps to scan for networks, even when Wi-Fi is turned off.
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Avoid poor connections: When enabled, your phone does not use a Wi-Fi network when
there is a poor connection.
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Install certificates: If you have certificates stored on an installed optional memory card (not
included), you can use this option to install the certificates.
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Wi-Fi optimization: Enable your phone to use as little battery as possible when using Wi-Fi.
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MAC address: View your device’s MAC address, needed for connecting to some secured
networks.
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IP address: View your device’s IP address.
Your Wi-Fi settings changes are saved.
Disconnect Wi-Fi
You may wish to disconnect from a connected Wi-Fi network without turning Wi-Fi off.
1. From home, touch > Settings .