phone internal speaker not working after battery change

I swapped out the battery in my iphone 6 plus. I inadvertently removed the 2 screws at the top of the battery and disconnected those connections prior to removing the correct battery connections. I replaced the connections and bar across the top. I replaced the battery without incident.

The phone booted right up but i have the following conditions:

1) people can hear me during a phone call but I cant hear them, unless I place them on speaker phone.

2) people cant see me during facetime, though i tested both cameras and they seem to work fine.

I believe something got disconnected while I had the display open but I thought I would try this forum before taking the phone apart and putting it back together. Any ideas what might be disconnected still?