I'm stuck with a jailbroken iPhone 4 on 5.1.1. I've learned I can't really upgrade to any higher than that now without losing my jailbreak (is that right?). My device is noticeably slowing down (not sure whether it's age or apps or what....), so I was going to attempt a restore. Am I right in thinking I would be able to restore my device without updating it to the latest iOS version? If I did restore, would I lose my jailbreak? And if so, would I just be able to jailbreak it again (albeit still on 5.1.1?). I'd really like to keep my jailbreak as the majority of my most-used apps/tools are only available through Cydia. I'd appreciate some suggestions!