Chosen Solution
I recently replaced the screen on my iPhone 5c (twice actually-2 different parts from ifixit) and lost the sound. I have removed and replaced it a few times and see nothing wrong with my install. Is there something that can easily short pertaining to sound in the 5c? What part should I replace now?
Sound from where? During calls can’t hear from the earpiece speaker at all? People can’t hear you talking during calls? Sounds like a mounting issue with the metal plate behind the earpiece and the front camera assembly which has the earpiece speaker connector on it. My guess is that the front camera ribbon cable is physically damaged for connection to earpiece speaker. It’s worth a try to replace front camera cable just in case anyway.
