iH8sn0w has just released the new version of iREB for Windows..This is the third version and has some new updates. The latest release Includes new and clean interface, credits to original developers, and the ever 3.1 SHSH grabber.The SHSH files may help you to continue to downgrade your iPhone back to 3.1 when Apple releases a new firmware. May be Greenpo1son requires these files during the jailbreak. The purpose principle of iREB is to exit from the mistakes 16xx and 21 of iTunes that usually appear during a restore of firmware. The iPhone 3GS 3.1 ShSh Grabber instead ensures the ability to run a future downgrade from 3.2 In 3.1. The operation is simple and is clearly shown in the video below.’to enter your code ECID that you can get by following
You need to get your ECID number before using the SHSH grabber so check our previous guide on how to find your iPhone ECID number Know your ECID for iPhone 3GS OS 3.1 on Windows and Mac.
To download iREB you simply connect to the official website, scroll down and click on Windows or Mac logo whatever your operating system is.