I purchased my phone (Iphone 5) through Sprint in the U.S. almost two years ago. Late last year I moved overseas and it was a nightmare to unlock it here in panama where i am living now. With the help of an Neter Nano Sim and an Asian guy in a local store we were able to unlock my phone however he said I would not be able to ever update to a new iOS in this condition. That was fine but I am now having a few difficulties running a couple of apps I use and according to the message I am receiving, the issue its related to the fact that i am still running the old iOS 6.1.4. I need to figure out a way to update to the latest iOS 7. I am a bit hesitant to jailbreak my phone, but if that is absolutely the only way then I would like to be able to know the pros and cons of jailbreaking my phone. Please help.