bought iphone that was already unlocked, now i want to update firmware, but..
I just bought my iPhone in Nicaragua. The phone was already unlocked and works just fine. What I know is that the firmware version is 1.1.1 (I don't know if it was updated or originally 1.1.1). I also don't know what software was used to unlock it. My questions are: How do you I find out what software was used (if this is crucial info). How can I update to version 1.1.2 and in the future to newer firmware without "permanently damaging" my iphone?
Thanks for your help & time!