iPhone XR | Cracked screen, Front Camera Not Working, Face ID Works

Got an iPhone XR in the other day for a screen replacement. The screen was dropped and whatever it fell on, made a pretty nasty crack directly over the front camera lens. After changing the screen, I wasn’t at all surprised to find that the front camera also did not work, well, sorta. ..

When you open the camera app, the front camera is only black. Rear camera works. Face ID works. Proximity sensor works. Knowing that Face ID would no longer function with a replacement front camera, the customer opted for a front camera replacement.

I replaced the front camera and nothing changed except for the lack of Face ID. Front camera is still black within the Camera app.

I then reinstalled the original camera and then performed a DFU mode restore on the iPhone, but this also did not fix the problem.

Any advice?