Chosen Solution
I just replaced my iPhone 7 screen with one sold from ifixit. Everything works fine, front camera and Touch ID are flawless. However, I get no sound from the ear speaker. Is there any easy fix?
If it had a preinstalled front camera assembly you may consider swapping the original one with the new one to rule out possible damage on the connector socket. You either got a defective part or something went wrong with replacement. Probably an easy fix but hard to tell without double checking the work done and parts involved.
