I have a iPhone 4S 64gb 6.1.2 Jailbroken with Evasi0n 1.5.1. It works awesome, was hoping the GSM would be unlocked so I could use any cellular service id like. Im currently with the "Rogers" network in Canada, and I would like to switch over. I looked around the site but couldnt find a step by step guide for my model of phone and firmware. Im afraid to wreck my phone and lose all my saved info. Is unlocking safe? Can I do it without buying an unlock tool? any help please?