The reasons for the slow charging of millet inch are related to the following
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1, whether the charging head is original
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2. Whether the data cable is in good condition
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3, whether the mobile phone motherboard has leakage
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4. Whether the data cable and mobile phone charging port are loose
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5, the last point is unlikely to be the problem of internal system limitations to prevent fast charging from affecting the battery life of the phone
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Using the above, according to the analysis of each situation, your millet 8 update system after the feeling of slow charging speed, it is likely to be the problem of system update, you can wait for a period of time after the system to see if there are problems, really can not go to after-sales service to test, or to millet mobile phone after-sales reflect the situation can be.