Which part of the phone has to do with SIM functionality?
I dropped my phone in soup (I'm not looking for help with water damage, I already took care of it), but mobile data is not working and I'm not sure if it's the phone or the card. Can someone point me to the area of the phone that has to do with SIM function or should I just give up?
Edit: I got some images from the teardown video (they're better than any I could take). I do need to make it clear that I'm very new to this and that I simply don't have most of the equipment that your suggestions would require. When I say that I'm not sure if it's the phone, I mean that I'm not sure if the moisture may have caused parts to malfunction. I was already thinking about ordering a new logic board and replacing it myself, as I already took it apart a few days ago and there didn't look to be any signs of corrosion, but I could always be wrong. I'm currently acquiring a SIM card from a friend to test if it's the card or the phone. It's looking like it might be the phone though, I put the SIM card into an old phone and the phone did detect the card and registered that it was from a different carrier, so If someone could point out which part of the logic board would have to do with SIM functionality so that I could check for anything that looks out of the ordinary, that would be very helpful!