Hello everyone, I hope you all are doing well. So yesterday my power button stopped working on my iPhone 4S and in still under warranty so I know I can get it fixed. But I purchased my phone of someone else and it's not under sprint contract anymore and I used the GPP sim imposer to unlock the phone. I called an apple representative yesterday but he had no idea what a sim imposer is so he wasn't able to answer my questions. So my questions are 1. Will they still replace my phone even though I used a GPP sim unlocked iPhone. 2. Could they give me a factory unlocked replacement because the GPP sim hasn't been proven to work with IOS 7 yet. (My iPhone is not jail broken so yes it still is under warranty) Any help would be greatly appreciated! Thank you!