Hi guys. I have 16gb 3GS and it's jailbroken and unlocked with redsn0w. The phone has been working great. But last week I sold the phone to my friend and did the reset all the contents under setting. Now my phone will boot up but still with all the apps I've installed and only in safe mode. There is an error keeps popping up and saying springboard failed or something like that and the phone is in safe mode with disable add on etc. So I attempted to restore the phone back to original 3.0 with DFU mode in itune but it won't let me. I tried with redsn0w in DFU mode and it's stuck on pineapple logo saying installing activation package or something. I have been reading to SHSH but I don't quite know how to use that or if I need to use that. Please help. Thanks a lot.