Having sound issues when calling or receiving calls. I'm hearing that I sound like Im in a tin can, lots of static, background noise or echoing from anyone calling me. I am coming up on the expiration of my 14 day 'trial' / can return the phone period and wondering if I should or not. I was also talked into buying a LifeProof case for the phone and am wondering if that could be the issue and not the phone itself. My son insists it's my case but it's so difficult to get off and the on again. Any input??