On Sunday I decided to restore my phone because I was having battery and slow data issues. I had read in a number of threads that restoring and setting it up as a new phone helped quite a few people. So, since I had nothing to lose I figured I would try it. The restore operation went smoothly until the last screen when the phone rebooted. I got an error message saying my SIM card was incompatible and that I had to get in touch with my carrier, which happens to be Sprint. I called Sprint tech support who upon hearing the problem said I had to call Apple. I call Apple who promptly tell me this is a Sprint issue and that I need to talk to them. The Apple tech apologized and told me he would get a senior Sprint tech for me so I wouldn't have to wait on hold again and that he would explain the problem to him so I wouldn't have to. After a short minute or two the tech told me that I would have to bring the phone to a Sprint store. The following day I go to Sprint and the manager tells me the techs leave at 6pm and that I should go to the Apple store. I get to the Apple store but they have no more free appointments. So I make an appointment for today. I go back to Apple and the kid says all he could do is swap out the phone but if it doesn't activate I have to go back to Sprint. Of course the phone doesn't activate so I go to Sprint. I waited for almost three hours for the manager to finally come back out with my phone telling me I have to go back to Apple that they shouldn't have sent me to Sprint this afternoon. He tells me he spoke to the manager at the Apple store and she supposedly owns up to the fact that Apple should have resolved my issue. It's now six pm and I know the Apple store is not going to have any open appointments if I go there, so I ask him to call the manager back and explain I was already there today can't they squeeze me in? He comes back "No they cant". I'm holding a $750 brick and no one is taking responsibility. I'm besides myself and don't know who to be angry at. Evidently the problem is that the SIM card has locked me out. So I ask the manager at Sprint, what irk they just unlock the phone then it doesn't matter what card is in there? He says he's thought of that but international dept said they can't, meaning that it won't work. I'm skeptical about that so I'm going to to get on the phone in a little while after my headache subsides and see if I can get a senior manager or tech person. What an f'n nightmare.