Installed new battery, now sound doesn't work

I ordered and installed a new battery. Now the sound doesn’t work. Is there a connector near the display connector that I might have knocked loose? Any help would be much appreciated before I open the phone up again.

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I went back in and couldn't see any connectors for the speaker/earpiece. It's just sitting there on the back of the display laughing at me. I finally found some earpods that fit the adapter and I can hear sound through those and make phone calls. Help! What could I possibly have done to my speaker?

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