How-To: Pwning 4.0 on New Bootrom 3G[S] w/3.1.2 SHSH Blobs

iH8sn0w wrote this today --> HERE

**BEFORE PROCEEDING, ENSURE THAT YOU HAVE YOUR PHONE BACKED UP!**
-------
WHAT YOU WILL NEED:

* An iPhone 3G[S] -- new bootrom
* 3.1.2 SHSH blobs.
* difrnt's iBSS grabber
* Payload Pwner-r2 for the 3GS.
* sn0wbreeze V1.6.2
* iBooty
* LibUSB (64-Bit users read carefully!!!)
* 3.1.2/4.0 3GS firmware downloaded.
-------


Please read the rest --> HERE.