The sale was also cut leeks, and the iPhone13 was fully offline with the "phone noise reduction" function

Zhongguancun online message: On January 16, according to the feedback of iPhone 13 series users, their mobile phones lacked "telephone noise reduction" function.

Previously, we could turn on or off the noise reduction of the phone through the accessibility settings. According to foreign media reports, Apple tried to repair it for four months without success, and the official reply "This is correct." It is not supported. "This proves that the noise cancellation function of the phone was deliberately disabled before. As of now, the only available workaround is to activate voice isolation in calls in the Control Center. Now that iOS 15.2.1 is officially released, let's go and see what changes have happened to your phone.

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