Has anyone returned a iPhone to Apple that has been jailbroken? My iPhone has a error and says that the sim card is not installed or installed correctly when it is. When I put it in recovery mode to restore in iTunes it gives me error #23. Which is a hardware error. It is still under warranty but the boot screen still comes up and you can tell it has been jailbroken because it has the pineapple logo instead of the Apple. I am wondering if anyone has had any experience with this?