The specific solutions are as follows:
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1. Keep the mobile data network connection behind the screen.
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Start by going to the Settings app on your phone.
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2, then click to enter the \"power and performance\" setting option.
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3, then click to enter the \"power saving optimization\" setting option.
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4. Next, tap the gear icon in the top right corner of the screen.
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5. Finally, set the \"lock screen disconnect data\" time to \"never\".