Help and Support for
Huawei P20 Pro
Android 8.1
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My Huawei P20 Pro Android 8.1 uses a large amount of mobile data
Cause 1 of 4: Use of mobile data for applications is turned on
If mobile data usage for applications is turned on, the applications will use mobile data when your phone is not connected to a Wi-Fi network.
Solution: Turn off mobile data usage for applications.