When your phone’s speaker stops working properly, it can negatively impact almost everything your phone does. Music stops playing, you can’t make calls using speakerphone, and you don’t hear notifications. Your phone uses its speaker constantly and that means there is a high likelihood that it will eventually become damaged or simply wear out.
The speaker on your phone is constantly exposed to the environment and all the debris it contains. While your phone itself is built to withstand a lot of these environmental factors, its speaker doesn’t always protect itself well against small particles that can damage or muffle it.