Camera not working after drop

It's probably the rear camera IC chip needing to be replaced if you already tried replacing the rear camera. I had it done for me once so I know it's possible.

hope this guide will help you https://support.apple.com/en-us/HT203040

You believe or not but for the first time when i dropped my phone the camera din't worked util few days after i accidentally dropped it again then i switched on. Unbelievably the camera started to work again

"My brother's Iphone 6 + was dropped on the ground and the front of the screen cracked, and now his backfacing camera wont work at all.

the phone wont even switch to the back camera.

Anyone have any idea why?"

Drop it again it worked for me

As if you saw bens answer he’s correct but it might still not work if it’s more damaged just to let you know not trying to be offended.