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My mobile phone just can't charge. There is still 44% power, which I can't charge. See what's wrong with you.
(1), regarding the above questions, first check whether the original charger is normal (if necessary, consider replacing it.

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(2) Check whether the whole original charging data cable is in poor contact (consider replacing it if necessary).

③ Check whether there is poor contact between the charging data cable plug and the charging tail plug of the mobile phone.

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(4) Check whether the battery inside the mobile phone is positive.

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⑤ If all the external components of the mobile phone are normal after the above inspection, there is still no possibility of charging problem at this time, which may be a hardware failure in the charging control circuit on the motherboard.