https://us.community.samsung.com/t5/Galaxy-S21/Microphone-intermittent-after-screen-repair/m-p/2652759#M80593 <P>I have a S21 U phone that I just had the screen replaced.&nbsp; Damage was on the top left of the phone, about 0.75 inches down phone side.&nbsp; After screen replaced, the phone microphone is intermittent.&nbsp; Intermittent in this case is when someone is listening to me talk, they will hear me at a low volume, the it will spike to very loud, then back.&nbsp; &nbsp;</P><P>My guess is that there was a poor connection made when the new screen was laid down, but I don't know enough about the structure of the phone to know this for sure.&nbsp;&nbsp;</P><P>I should mention that they replaced the raster control due to the location of the damage and that the raster on the phone clearly was messed up.&nbsp; Perhaps&nbsp; this was where bad connection was made.</P> Wed, 06 Sep 2023 15:34:53 GMT jhmay 2023-09-06T15:34:53Z