To protect your Galaxy phone, while the device is manufactured and distributed from the factory, the front, rear, camera, and side parts of the device are covered with a protective film. Thisprotective film attaches directly to the device, mainly to the charging hole, microphones, speaker holes, and cameras. In the case of the microphone hole at the bottom specifically,a largeprotective film and a small sticker may be attached in two layers, so even the second small sticker must be completely removed.
If you don't hear the receiving or outgoing sound clearly or the sound is erratically cut off, it may be because the protective film that was attached to the speaker and microphone holes on the device is blocking the holes. In addition, if theprotective film attached to the camera is not removed,the picture may be out of focus or cause angle distortion when you take a picture, and you may have a picture with degraded quality.
