I have an iPhone 4, and I have already set up everything needed to get a replacement phone since mine is defective. I am debating on jailbreaking it for the few days left that I will have the defective model, so I can tether my phones internet (unlimited data plan). If I do jailbreak it, is there ANY way that Apple can find out? I've looked this up online and have found mixed answers. If I jailbreak, I plan on putting it into DFU and restoring it before I send it to Apple.