Help with iPhone 3GS unlocking and Jailbreaking

Rave

ex-Mod
Have a friend in the UK who currently has an iPhone 3GS running 3.1.3 and baseband 05.12.01

he wants to run iOS 4 on it and also jailbreak and unlock it so that he can send it over to his brother in India

can someone help me out here as to how to proceed?
 
He needs to first confirm whether the iPhone has new bootrom or old one. There is no working jailbreak yet for iPhones with newer bootrom. Download f0recast or tooljail to find that out!
 
Sorry a bit OT here , Pat I also have an friend who has an unlocked iPhone 3G with modemfirmware 05.12.01 and fw version 3.1.3(7E18) .. I think its unlockable can you confirm that ?
 
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