Chosen Solution

WHY my iPhone 4 is cracked and I tried cleaning out the USB I didn’t see any dirt and tried cleaning out the earphone and I’m just true of using earphones what do I need to do

Regardless of how this happened. You need a new speaker box. Here’s one. They’re relatively simple to install iPhone 4 Speaker Enclosure Replacement [linked product missing or disabled: IF182-013-1]

Hi there, You may need to replace your charging port or speaker. They are connected together and are both simple to repair. heres a guide below from fixit on how to do it. Link text