About 300 yuan, 1, first use the charging cable repeatedly insert a few times, pay attention to the process of gently shaking the charger up and down, remember not to force too much, if too much force will permanently damage the charging port. If the problem can be resolved, the following steps are not necessary.
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.
3. Finally, insert the charging cable repeatedly into the charging port several times, so that the problem is usually solved.
This is uncertain, there is no uniform specification. Because each mobile phone its model is not the same, its charging chip replacement price. But this price is generally not too outrageous, the replacement of mobile phone charging chip, basically the price is within two hundred yuan.