When iPhone XS max is on speakerphone, the call noise is very serious, and there is an electric current sound. How to solve this problem? Let's take a look at the detailed tutorial below.
1. First click Settings to enter,
2. Select the General tab in the Settings interface to enter,
3. Click Accessibility in the General tab interface to enter,
4. Enter Accessibility and find Mono Call and Phone Noise Audio,
5. We turn on all the switches behind Mono Call and Phone Noise Audio,
6. Press the Volume Up and Power buttons at the same time, and restart the phone.
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