Sony Xperia XZ3

Sony Xperia XZ3

Android 9.0

My Sony Xperia XZ3 Android 9.0 uses a large amount of mobile data

Cause 1 of 3: Automatic mobile data usage is turned on

If automatic mobile data usage is turned on, your phone will use mobile data when the connection to the Wi-Fi network is poor.

Solution: Turn off automatic use of mobile data.

Step 1 of 9

Find "Advanced"

Slide two fingers downwards starting from the top of the screen.

Step 2 of 9

Find "Advanced"

Press the settings icon.

Step 3 of 9

Find "Advanced"

Press Network & Internet.

Step 4 of 9

Find "Advanced"

Press Wi-Fi.

Step 5 of 9

Find "Advanced"

Press Wi-Fi preferences.

Step 6 of 9

Find "Advanced"

Press Advanced.

Step 7 of 9

Turn automatic use of mobile data on or off

Press the indicator next to "Auto network switch" to turn the function on or off.

Step 8 of 9

Turn automatic use of mobile data on or off

If you turn on the function, press ENABLE.

Step 9 of 9

Return to the home screen

Press the Home key to return to the home screen.

1 Find "Advanced"

Slide two fingers downwards starting from the top of the screen.
Press the settings icon.
Press Network & Internet.
Press Wi-Fi.
Press Wi-Fi preferences.
Press Advanced.

2 Turn automatic use of mobile data on or off

Press the indicator next to "Auto network switch" to turn the function on or off.
If you turn on the function, press ENABLE.

3 Return to the home screen

Press the Home key to return to the home screen.