for the following reasons
1, it may be the fast charge protocol interaction is abnormal, it is recommended to reinsert the data cable.
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2. Confirm that Huawei standard data cable is used. In order to ensure charging safety, only Huawei standard data cable can be used to enter the fast charge\/Super fast charge mode.
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3. Check whether the connectors and interfaces are clean. If dirt and other dirt are found, it is recommended to clean it with a brush and then charge it again
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4, please check whether the data cable, mobile power and interface are damaged, if damaged, it is recommended to stop using and replace in time.