I have a week 43 AT&T iphone that I want to use in Ireland with an O2 SIM. I have been trying to hack it for nearly two weeks. I'm a network administrator and a qualified computer programmer so I am pretty tech savvy but I don't know a lot about the iPhone. I don't know what basbeband or bootloader mean. (Do I really need to?) I have tried to hack this phone with every method under the sun without success. Every tutorial I try sends me round in circles because I either get an error, or I can't download something or something that's supposed to be on my phone that I need to go to the next step isn't there etc etc etc. Can someone please just tell me me where to start or point me to instructions that won't lead me to yet another dead end. I will genuinely transfer €50 to anyone who helps me get my iphone working.