Hey guys, Basically i recently purchased a Iphone 4 ios 5.1, baseband 4.12.01 off eBay. It was listed as locked but i assumed that because i am resonably tech savvy i would be able to unlock it myself, it's locked to Orange mobile uk and i am in Australia (tried calling Orange customer service but you need a Orange mobile number to get through to an operator). I also considered that it might be a blacklisted phone but i checked the IMEI and it said that it was not blocked. ANYWAY long story short i Jailbroke it using redsn0w 09.10b6 for Windows and that went fine, i then downloaded SAM through Cydia and tried all the different methods you can use with SAM to unlock the carrier but none of them worked. I also tried Jailbreakme.com on a whim but it said that it wasn't available for my Iphone. I am aware that there is a newer version of redsn0w, do you think that would make a difference? Would downgrading my baseband help at all? Thanks!