Chosen Solution

Hey, So I am refurbishing this iPhone 6s with a new housing and screen (due to the screen damage I couldn’t test all the features), I put it back together and the front camera doesn’t work. All the other components on the front camera flex do (Siri, ear speaker etc). I tested a working front camera module from another iPhone 6s and the front didn’t work off that one either. I have updated a and restored the iPhone. Any thoughts?

If you’re replacement Front Camera Flex was known-good, then the only real possibility is logic board damage. It’s hard to say but this was probably a pre-existing condition. Is there any way for you to find out what the history is? Logic board problems need to be looked at by a micro-solderer and is not a DIY fix.