I am afraid of jailbreaking my 4s. I am just worried if my screen cracks or water damage happens to it apple would not fix it cause it has been jailbroken. I have hear people say just make a backup of your phone before you jailbreak it and when you go to get your iPhone fixed at the apple store just use the back up. But my main question here is that if I use the backup and bring it to the apple store they wont be able to trace my phone has been jailbroken? Any newbie help?