No service after drop and screen crack

I’ve had my iphone 7 for about 2 years now. Before it would work perfectly fine but after I dropped it about 4 months ago (it was a hard drop!) the screen shattered and I lost the cellular signal completely. I’m not concerned about the screen at the moment, my priority is to get the signal fixed. the phone lost signal immediately on impact as I got “no service” when i picked it back up.

So far to fix this issue I’ve done a factory reset, checked all antennas were plugged into the logic board propery, replaced the dock port which the cellular antenna is connected to (at least i think it is the cellular antenna) and updated ios and the carrier settings. Is there anything else I can take a look at or try?