What should I do if there is no sound when recording videos?
When Xiaomi's mobile phone records video, it uses a secondary microphone to collect sound. If there is no sound when you record the video, please test the microphone in the hardware detection;
3. If the hardware detection result is normal, it is judged as system or third-party software interference. Please try to update the latest complete package or restore factory settings after backing up data;
4. If the primary/secondary microphone is abnormal in the hardware detection, please contact the after-sales service.