A53 - Crackling/distorted sound

[MrCorner]

Hey. Bought my A53 a few days ago - No issues, phone worked perfectly. Order a case from Amazon and as soon as I put the case on the sound became crackly and tinny. I guessed it might have been a fault with the case, so sent it back and got an official Samsung one from the Samsung store - Still the same problem - So it surely cannot be the case?? Anyone else had this issue? Cheers

[MrKaveh]

Which sound? Call sound of the person on the other side of the line or sound of the music?

[Andy0922]

The notification and ringing sound

[MrKaveh]

Once take out your phone SIM card tray, play a music with YT music app and check whether sound becomes crackly or not. Then insert the SIM card tray inside the phone again and check the sound. Sometimes diffrent pressure inside and outside of phone causes this crackly sound.