How to jailbreak iPhone 3GS on 4.2 firmware?

[ifaptoomuch]

Hey guys,

I ended up locking my iPhone 3GS when I tried to update to 4.3 and jailbreak it again. I haven't updated it in about a year or so and prior to this I was running on 3.x something.

What would be the best way to go about jailbreaking this now? I just use this as my iPod only so I'm not too concerned about which firmware to use, although 4.3+ is desirable. What would be the best course of action to get this to go again?

Man, going to the gym without music is another realm of pain

 

[Intell]

On 4.2, use greenpois0n. On 4.3.0-4.3.3 use redsn0w.

 

[Crystal-RX]

If you don't have SHSH blobs save, you can't go to 4.3.3, 4.3.5 or OS5. You will have to go to the latest firmware Apple currently signing which is 5.0.1.

If you can go to 4.3.3, you can use Jailbreakme.com to jailbreak as well where you can jailbreak your phone directly from its safari.

 

[unlimitedsway]

what program were you using? Do you have tiny umbrella?