My 3gs with new bootrom is in 4.0.2 but before it was jailbreaked with blackra1n.
I would like to restore it to my previous version 3.1.2 and then jailbreak it with JAILBREAKEME.COM.
What I want to know is what can be the worst scenario if I can not.
Will I be stack in DFU mode?
Can I go back to 4.0.2 or will I be forced to go to the latest firmware 4.1
How do I get out of DFU mode:spinme