First, confirm whether to use the standard charger and standard charging cable
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Huawei standard 2 amp charger and low impedance USB cable, non-standard charger and cable can not provide the corresponding charging speed, resulting in slow charging or even unable to charge, so when you find that the phone cannot be charged, you can try to replace the standard charger
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Second, the mobile phone has not been used for a long time or has not charged the mobile phone in time after low power shutdown, and the battery is over-discharge, it is recommended to connect the charger and charge for more than 30 minutes to see whether the mobile phone has a reaction
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Third, clean the dust of the charging port
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The charging port is blocked by dust, which will cause poor contact, not only the charging speed is slow, but also may make the phone unable to charge, you can use the dust of the charging port to clean up
11. The mobile phone system is faulty, resulting in an abnormal battery. After long-term use of the phone, there may be a series of system problems, there may be a problem causing the battery module to be abnormal, so that it can not be recognized when plugged in. Processing method: In this case, it is relatively easy to deal with, directly shut down and restart the phone, and let the phone refresh a new data, generally you can return to normal.
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22. The charger or data cable is faulty. The charger or data cable can not be charged due to long-term use, aging and damage. Solution: First replace other useful data cables or chargers for investigation, find the faulty parts, and then replace them.