1 Check whether the original charger is used.
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2. It is recommended not to use the phone while charging, which may extend the time for the battery to be fully charged.
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3. Check whether the charging is slow when the device is powered off. If only startup charging appears, it is recommended to end the background application before charging.
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4. Check whether the device is of the latest version. Check whether foreign bodies exist in the tail insert of the u* interface
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5. If the problem still exists, it is recommended that you go to the service center to check and deal with it in time