Clean the charging terminals of the earphones
Use a cotton swab with a pointed tip (such as for make-up) to wipe off dirt from the charging terminals of the earphones.
The illustrations use EAH-AZ60M2 as an example.
![image](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAAOCAMAAADHVLbdAAAAM1BMVEVHcExQUFDg4OAwMDDAwMCgoKAQEBBAQEDw8PCAgIAgICDQ0NBgYGBwcHCwsLAAAACQkJAMnOsLAAAAAXRSTlMAQObYZgAAAHVJREFUCNdlj1sORCEIQ4sgqNfX/ld7QSeTSYaP6qkEKuA1SdeyjVuFWi5uGj+Hrbs8fs/qNrJFTwut5NIEGLqOqwmpRbdwMHqG2B1yjlr/uOgP0wQ4fzktXyjtbA2XajwNTjdn5xt4a58iQ0f5/CBtMqsn/QtfMgMOtDe5zAAAAABJRU5ErkJggg==)
Put the tip of the cotton swab on the charging terminal (A).
![image](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAAOCAMAAADHVLbdAAAAM1BMVEVHcEwQEBBQUFCgoKDw8PDg4ODAwMCAgIBAQEAAAADQ0NAgICAwMDBwcHCQkJCwsLBgYGB2uUWwAAAAAXRSTlMAQObYZgAAAH1JREFUCNctjwkOACEIAwsKgvf/X7uo28SQTkipQGgxudvEU+aWckDr9XrbgKgAiQIjWTx3H0Dh8E0BYkyvyCSQFqwolgffCWo3pNLl5ffTb3j4TGeetBAvoCfAycwqxOOgtizlSMDlLI0ur+fur/CkvVQHjfz/QCabldv+A4H2A480W8ZkAAAAAElFTkSuQmCC)
Rotate the cotton swab to wipe off dirt.