Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
Considering the only way to repair the back glass is to replace the phone I'd say if Apple refuses to fix the earpiece because of the crack your only option is to pay the $599 and get a replacement which will include a new earpiece
 
  • Like
Reactions: DevinNj
I don't know that they'd take on the risk of trying to repair a phone that's already cracked. They don't just repair a phone with a cracked back, it's a total replacement like @BugeyeSTI said above. But again this is a question best suited for Apple. Sometimes if you're lucky, you can get a sympathetic employee that can "work" it to your advantage. My sister for example, cracked her screen, then a few weeks later the bottom speaker failed, and the Apple employee warrantied it for the speaker.
 
Take a brush or toothbrush and clean the earpiece mesh. I’m sure it’s clogged with debris.
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.