Method 1: Soft toothbrush quickly clean ash
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Use a small, soft toothbrush to gently brush the charging port of the phone, and then stand the phone up and down the interface, blow the interface with the ear wash ball, and clean up all the dust particles. The ear wash ball can be replaced by a cold air blower, and can not be blown with the mouth to prevent short circuit caused by saliva splashing to the charging interface.
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Note: Be sure to choose a toothbrush with fine and soft bristles, as hard bristles can easily cause wear and tear on your phone. If cleaning with a hair dryer, please note that the temperature should not be too high.
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Method 2: Toothpick double-sided tape, dust nowhere to hide
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Wrap the tip of the toothpick tightly with double-sided tape and gently turn it in the charging port. Double-sided tape will pick up a lot of dust.
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Method 3: Dip a cotton swab in alcohol
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With a small cotton ball dipped in anhydrous alcohol, gently wipe the interface contact, remove the oxidized part to eliminate poor contact, to avoid unable to charge or heat due to large contact resistance. For example, dust particles and other dirty places are too deep to clean, you are advised to bring the purchase invoice, warranty card, and mobile phone to the local after-sales service for professional engineers to detect and handle.
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Note: Be sure to operate in the case of power off, and do not dip too much alcohol. Do not use water to clean, because water is easy to cause the phone water rust or short circuit.