Hi, today I got my father's old 2nd generation Iphone. He bought it almost 2 years ago but it gonna be locked for 3 more month. So first thing I did was resetting it to delete his data. The Screen shows "Please insert a sim card" or the like. I want to unlock + jailbreak it now but there are several tools out there and I really don't know which one to use. I'm not a starter, jailbreaked my Ipod touch several times till it got broken but I never unlocked an Iphone before. So could someone please give me some advices? Thanks in advance. Best regards.