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OPPO Find X3 Pro
Android 11.0
1. Find "WiFi Calling"
Slide two fingers downwards starting from the top of the screen.
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Press the settings icon.
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Press SIM card & mobile data.
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Press the required SIM.
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Press WiFi Calling.
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2. Turn Wi-Fi calling on or off
Press the indicator next to "WiFi Calling" to turn the function on or off.
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3. Return to the home screen
Press the Home key to return to the home screen.
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