iPhone 11 rear cameras and flashlight do not work. What is wrong?

So my buddy was skateboarding one day and he tripped while riding and fell on the ground smashing his 11 screen-first that was in his hand. It had a good case and screenprotector but the screen suffered extensive damage. Luckily only the first layer of glass was smashed. The touch and LCD are just fine though. But he realized that after, BOTH the rear cameras did not work at all in any setting, and the flashlight would not work. Nothing was greyed out like you could click the flashlight button and it would show that it is on but the actual flash would not turn on. For the rear cameras, It would just show a black screen. The front camera still works just fine though. Everything else on the phone works just fine as well. I know that if the cameras are broken the flashlight will not work since they are on the same power lines or something and vice versa, but I am wondering if it is the camera unit(s) that are internally damaged or if something got knocked off the logic board because he fell really hard on the phone. I really doubt that the flashlight is the cause for the rear cameras not working so I think it’s something on the board or if it is the cameras. I opened the phone up to see if there was any visual damage (connectors, cameras, etc) and everything seemed fine. So I am just wondering what the issue is if I should buy a new rear camera unit or if it’s most likely a logic board issue. Please help!