It is not recommended to use, it is recommended to replace a new charger. The power adapter is the largest use of household appliances in our daily life, and its main function is to convert dangerous 220V AC into safe voltage AC or direct current to supply electrical appliances. Although the mobile phone charger is small, the quality is related to the safety of property, especially when it is used while charging.
Pull it out and gently wipe off the carbon with a fine cloth!