I own an iPhone 5s, which is locked to carrier. Thats way i use it like an iPod. The problem comes from the rest I did today. After it I am unable to activate it. I shouldnt have a problem to activate it with iTunes, but i got a strange error when I connect the phone. Тhe error says: There was a temporary problem completing your request. An unknown error occurred (590624). Try again later. I use the latest version of iTunes. Do you have any suggestions ? Thanks .