Why can't my microphone transmit the sound, and why am I constantly seeing the prompt to adjust the volume?

The cause of the problem:

  1. The microphone is in poor contact with the earphone hole of the phone.
  2. The mobile app is brushed off by the system.

Solution:

  1. Re-plug the tuner or rotate the sound.
  2. How to lock the app and prevent it from being brushed off in the background
    1. Open the TC Games app, click the “Recent Application” button on the phone, then find TC Games through your recent apps. Click the lock button — seeing the "lock" sign proves that the lock was successful.