Hi olethros need to jailbreak iphone 3g on baseband 5.11.07 and firmware 3.1.2. which is the best tool to jailbreak iphone 3g u suggest. And should i have to take backup of shsh in iphone 3g and will i be able to restore to normal custom firmware by itunes.??? pls reply urgent?

Originally Posted by tapan15in

Hi olethros need to jailbreak iphone 3g on baseband 5.11.07 and firmware 3.1.2. which is the best tool to jailbreak iphone 3g u suggest. And should i have to take backup of shsh in iphone 3g and will i be able to restore to normal custom firmware by itunes.??? pls reply urgent?

3G does not require SHSH so don't worry about that.

You can use custom ipsw and you should use this if you want to load 3.1.3 or higher. Just remember that blacksn0w does not work on 3.1.3 even if you keep your current baseband. So if you rely in unlock you need to stay on 3.1.2 for now.

Redsn0w guide, you need to skip step two.
iClarified - iPhone - How to Jailbreak Your iPhone 3G on OS 3.1.2 Using RedSn0w (Windows)

unlock with blacksn0w
iClarified - iPhone - How to Unlock the iPhone 3G, 3GS Using BlackSn0w

Pwnagetool
iClarified - iPhone - How to Jailbreak Your iPhone 3G Using PwnageTool [Mac]