It seems that the device has a MDM (Mobile Device Management) profile on it. This is what corporations use to manage their devices such as laptops, tablets, and cell phones. There are ways to bypass this.
Unfortunately, it appears that you’ve damaged your LCD. This is a fairly costly repair, ~$200 sounds about right if not a bit low for the cost of that part.
If you’ve attempted replacement of the FaceID component, its possible that the secure enclave protection has kicked in. Replace it with the OEM part and continue troubleshooting from there.