Plug in the phone and there is no response, or play music outside, and there is no icon. What is the reason?

First, determine whether the headset is damaged:

1. Plug the earphone into another mobile phone or MP3, and check the sound condition. If there is no response, try again with another earphone.

2. The mobile phone problem is handled as follows:

Check whether the volume of music player and mobile phone is adjusted properly;

The cell phone jack is oxidized and wiped with a cotton swab dipped in anhydrous alcohol;

The mobile phone is too stuck, resulting in slow response. Clean up mobile phone garbage, shut down and restart;

Restore the phone to the factory settings (or reset the phone).