Mic and speaker not working, works with headphones

I dropped my phone flat on its face, I am not sure if it has anything to do with my problem, but it didn't seem to have any damage. I can't hear anything and the receiver doesn't get anything either, someone told me they heard me a little bit at the end though. The regular speaker doesn't work, but speakerphone does for hearing the other caller, but nobody can hear me unless I use a pair of headphones seemingly. Is there something I can do to fix it or diagnose the problem? I am jailbroken, and I tried to boot it in substrate free mode, and it did not fix my audio problems.

The speaker makes no noise at all, it is not even a faint buzz. On speakerphone it is fine though. I think I might have dislodged something when I dropped it?