Chosen Solution
I replaced the screen on my iPhone 6s using an iFixit part and now the audio during phone calls is horrible. The audio rattles, there are high pitched artifacts. It sounds like a blown speaker. The screen installation went perfectly. No problems. I just followed the instructions and it all went smoothly. But now the audio sounds awful. What’s going on?
If the screen from iFixit was preassembled with the earpiece speaker preinstalled you can transfer the old one from the old screen to the replacement screen and that should do the trick.
In my experience, Tin Can Audio occurs when a front flex is partially damaged during removal. That little bugger is so friggin’ fragile, I feel like have to do have to superstitious things like play soothing music around the phone being repaired or I get Tin Can Audio, or an Ambient Light Sensor fails. To resolve the issue, you can reseat the front flex and earpiece, that may help. If that doesn’t work, Ben’s suggestion is the next best solution.
