Huawei P30 lite
Android 9.0
Select help topic
1. Find "Carrier"
Press Settings.
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Press Wireless & networks.
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Press Mobile network.
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Press Carrier.
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2. Select network automatically
If you want to select a network automatically, press the indicator next to "Automatic" to turn on the function.
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3. Select network manually
If you want to select a network manually, press the indicator next to "Automatic" to turn off the function.
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Press OK and your phone will search for networks.
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Press the required network.
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4. Return to the home screen
Press the Home key to return to the home screen.
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