Chosen Solution

There is a small tab with 2 metal connectors that is right beside the battery connection on the motherboard. It also seems to slide into the phone base. Broke this off by accident. However the phone still charges, and the speaker and mic still work. Anyone know what it does? [Broken piece https://imgur.com/gallery/TNMFL|Link to picture of broken part] Edit: fixed link

I cant view the picture of the broken part, the link is not shared publicly.

I broke off the same tab and was worried my phone wouldn’t work anymore. Glad to hear yours is still working. edit: like others said it connects to the cell antenna on the case. I no longer have any cell reception, can only connect to wifi.