I have a 3GS with 05.16.02 BB from the 4rth week and I need help with updating it to 5.1.1 and keeping it so i can use it for prepaid next week. Will someone please be kind enough to give me a small list of instuctions with links? I know I have to have pwnagetool create a custom 1.5.5 ios for the phone but Idk if I have to update it to another version first or where I can get the ios to mod it because before it seemed I got an error every time I tried to select the IPSW I wanted to customize in redsnow.. someone please help me I dont wanna brick my phone I dont have a job atm..