I am an owner of a iphone and I’m trying to jailbreak my iphone 3gs. I am currently using 3.1.3 version I want to jailbreak my iphone. I heard if you have the old boot loader this is possible? I bought my phone in July 2009 but is the boot loader something that could have been update it at any stage? I also tried to jailbreak last night using black rain but the phone wouldn’t go into recovery mode. Please help.