Phone speaker is distorted?

I had my iPhone in my pocket while I was shoveling. Now the speaker is screws up.

Maybe there's some dirt or water in it. Blow hard into it.

Speaker distortion analysis:

1.Image output power is too large, exceeding the maximum power allowed by the speaker, resulting in voice coil vibration blocked and distorted.

2.Audio in the amplifier preamp or power amplifier overload caused distortion.