1. Insert the charging cable repeatedly several times first, pay attention to gently shaking the charger up and down during the insertion process, remember not to exert too much force, if too much force will permanently damage the charging port. If the problem can be resolved, the following steps are not necessary.
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2, clean with cotton swabs and anhydrous alcohol: 1) Cotton swabs should be made of wood or bamboo, not plastic. 2) Prepare two groups of cotton swabs: First remove the cotton from the cotton swabs, one group use a knife to cut the cotton swabs into a flat, as thin as possible, the other group use a small cut into a sharp, and then wrap a small amount of cotton swabs on it. 3) Dip in a small amount of alcohol and gently insert the charging port of the phone. The flat cotton swab is used for cleaning the upper and lower sides of the charging port, and the pointed cotton swab is used for cleaning the side.
After inserting the cotton swab, try gently moving the swab to clean it as much as possible. 4) After cleaning, wait a few minutes for the alcohol to evaporate completely.
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3. Finally, insert the charging cable repeatedly into the charging port several times, so that the problem is usually solved.
Replacing the charging IC requires certain electronic maintenance skills and tools, if you do not have the relevant skills and tools, it is recommended to seek the help of professional maintenance personnel. The following are the general steps to replace a charging IC:
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1. Confirm the model and location of the charging IC, which is usually located on the circuit board.
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2. Use a soldering iron and a tin absorber to remove the original charging IC from the circuit board.
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3. Clean the residual tin slag and dirt on the circuit board.
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4. Insert the new charging IC into the appropriate position on the circuit board.
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5. Attach the new charging IC to the circuit board using a soldering iron and solder.
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6. Check whether the connection on the circuit board is secure and there is no short circuit or open circuit.
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7. Test whether the replacement charging IC works normally.
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Please note that replacing the charging IC requires care to avoid damaging the circuit board or other electronic components. If you are not sure how to proceed, seek the help of a professional repairman.
①, on the above problem, to be honest, if the lC inside the charger is damaged, it is better to buy a charger directly.
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If it is said that the charging control chip inside the mobile phone is damaged, it is best to go to the mobile phone repair shop to ask professionals to help change it, so as not to cause unnecessary losses, by then it is too bad.