How to Update a JailBroken iPhone
One of the first things some iPhone users do is jailbrake their phones. Apple locks down a lot of features on the iPhone to keep the phone safe and running stable. Sometimes, safety and stability isn't the first thing some users are worried about, so they spend time researching how to unlock the phone's full potential. The other part of the problem is keeping the phone up to date with the latest software that Apple releases. Now you can have the best of both worlds.
Upgrade iTunes on your PC to the latest version. In order to install the latest iOS on your iPhone, you need iTunes.
Plug the phone into your computer. Go to the summary page for your iPhone and click the "Check for Updates" button.
Follow the update procedures outlined by iTunes. The system will walk you through the regular update step by step.
Download the latest jailbreak software to your iPhone and jailbreak it again. The OS updates will unjailbreak your phone; if you want the benefits of the jailbroken phone, you will have to install the software again.
Repeat the process the next time an update comes out for the iPhone.
Tips & Warnings
- If your phone needs to go in for any kind of service, the warranty will be void if it is jailbroken.