I have only just found out about this service, and I was wondering if anyone knew whether they could unlock my iPhone 4S without me having to reset the phone's firmware, or upgrade to the latest iOS for any reason. I ask this because I asked my carrier (Vodafone UK) to unlock it, and they specifically said this cannot be done without a reset to iOS 7. Yet Chronic says it is done remotely and with no interruption to service, but I'm doubting it. What they claim to be able to do is impossible (albeit due to artificial restrictions by Apple and the carriers). And yet they are a reputable company with tens of thousands of Twitter followers. I want to keep iOS 6 (for reasons that will not be discussed here) so the option to unlock without upgrading would be very important for me. For what it's worth, my phone is also jailbroken.