Want to jailbreak your iPhone 5, iPhone 4Sor iPhone 4 and install unauthorised apps? It's risky, but if you're sure, here's how to jailbreak an iPhone - including how to jailbreak an iPhone in iOS 6.1.3. We also have a brief update on the iOS 7 jailbreak, if you've updated to the latest OS but want to get your jailbreak back. Jailbreaking your iPhone is a risky process that we can't wholeheartedly recommend, but it remains popular among those who wish to installunofficial apps on the phone. What is jailbreaking? In essence it