FaceID and rear camera not working on almost brand new iPhone 11

I have an iPhone 11 and after a drop that shattered the screen - FaceID and the rear cameras don't work (black screen/freeze)(front camera still works). I used to be an apple technician but i have no clue as to what has gone wrong here.

The cables are all intact (no tear), the connectors are clean with no bend pins.

I changed the display correctly, and ambient light sensor works - but i seems like i'm not picking up any infrared light from the DOT projector.

Also the x0,5 camera worked for a couple hours, but then that stopped working as well.

Portrait mode also doesn't work (Is that because of the DOT-projector or is that another sensor?)

I have tried DFU reset, Erasing and normal resetting. Also reseating the connectors multiple times.

Any clues?

Thank you - cheers