By A Mystery Man Writer
You can turn off all wireless connections on your mobile phone so it can’t cause any interference with sensitive equipment in a plane or a hospital. You can use your mobile phone in flight mode, but you can't send messages or make calls.
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How to Switch On / Off Airplane Mode in Oppo Find X3 Lite?
How to Switch On / Off Airplane Mode in Oppo Find X3 Lite?
Bluetooth or Bluetooth visibility is turned off on your mobile
Turn mobile phone on and off - OPPO F1s - Optus