this is my first jb. i used blackra1n and cydia. ive tried 3 times now to get winterboard on my ph. i have tried to download it and it doesnt show up on ph. i reboot, tried downloading an app from itunes, uninstalled and reinstalled and nothing. i noticed that when i download it it doesnt tell me to reboot just return to cydia. i have a iphone 3gs 3.1.2 (7d11) serial digits 3-5 are 939... oh and i tried bossprefs and its not a hidden icon