Sony Xperia J - Turn off WiFi while the phone is sleeping

Android 4.0 (Ice Cream Sandwich)
Phone: Sony Xperia J
Factory OS: Android 4.0 (Ice Cream Sandwich)

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Turn off WiFi while the phone is sleeping

If you want to conserve battery life, you can turn off the WiFi while the phone is asleep.

Go to Settings – WiFi – Advanced – Keep WiFi on during sleep.

 
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