So I desoldered the USB port from my Pi3 A+ since I need that part of it to be very low-profile for a project. Simple enough, nice big vias to work with, badda boom. That seemed to go fine.
I also removed the DSI display ribbon cable connector, and that's where things went wrong. While I was heating the pins I applied some pressure... too much pressure. The connector popped off the board and took most of the pads with it. I don't see any traces pulled up, though. I booted it up with a fresh Raspbian Stretch Lite install and everything seemed to go fine except that Bluetooth failed to initialize during the boot-up sequence. WiFi worked fine. That's where I left off for the night.
Tonight I hard-soldered my USB hub's connection to the vias that were vacated by the USB port. Popped in a different fresh install of Stretch Lite and again, no Bluetooth. That's fine, I don't need BT for this project. But now WiFi doesn't work either.
The Pi doesn't think it has WiFi at all. raspi-config gives me a "No wireless interface found" error when I try to set my WiFi country or enter my SSID/passkey. Now I'm thinking I probably broke a connection somewhere that the Pi needed for network connectivity.
Does anyone have any idea what I might have done, and if it's fixable? I suppose I could just spend the $25 on a new Pi and start over, but obviously that's not ideal. Especially since it's possible it might happen again