I recently slipped over with my iPhone 12 in my back pocket I also happened to have my keys in the same pocket. As I fell over my entire body weight fell on my phone and the keys pierced the back of the phone pushing through and cracking the front glass. The phone works the screen still works same with Face ID and all the cameras. The only thing that doesn’t work. My Friend used to have a phone repair shop. He’s replaced the front and back glass and all the inner parts seem to be perfectly fine. However it won’t connect to any networks what so every no Cellular No Wi-Fi no Bluetooth. He thinks it’s the logic board inside could it be anything simpler or is it gonna cost me a bomb?
Better for you to get a new phone instead. You won’t regret it.
I don’t know about the iPhone 12, but on the iPhone 11 there’s a dual purpose antenna that connects directly to the motherboard that snaps into place was that properly reinstalled in your phone?
He’s only done the front and back glass as far as I’m aware. I’m not familiar with repairing iPhones I’ll ask my friend