IREB

What is iREB?
iREB is a GUI application created by iH8sn0w. It uploads 3 pwned files using iTunnel so that iTunes can accept custom IPSW firmware.

For S5L8900 devices, it uploads the following:
 * iBSS.MODEL.RELEASE.dfu
 * WTF.MODEL.RELEASE.dfu
 * WTF.s5l8900xall.RELEASE.dfu

For S5L8920, S5L8922 & S5L8930 devices, it triggers a heap overflow and uploads a pwned iBSS.

Current Developers

 * iH8sn0w (Windows + Mac)
 * w3st05 (Windows)
 * spendl (Windows)
 * srts (Mac)

Compatible Operating Systems:
Windows XP/Vista/7/OS X 10.4+

4.0.x/4.1 r2

 * Added support for all devices

4.0.x/4.1

 * Changed GUI
 * Removed Support for iPod touch 1G and iPhone 2G
 * Removed Umbrella SHSH Grabber
 * Removed sn0wblower
 * libusb no longer required
 * Uses iTunnel to fix Recovery Mode Loops and bypass 1015 error.

3.1.2

 * Updated SHSH Grabber to accept the iPod touch 2G and iPod touch 3G.
 * Updated SHSH Grabber to grab 3.1.2 blobs.
 * Integrated sn0wbl0wer, which uploads the following to an iPod touch 2G:
 * iBSS 2.1.1 (stock)
 * ARM7 Go Exploit
 * Pwned iBSS
 * Removed PayPal Donate link.

3.1-3

 * Added iPhone 3GS 3.1 SHSH Grabber
 * More stable
 * Added credits

3.1

 * Added GUI
 * Added Recovery Mode loop fixer
 * Fixed Bug from 2.2
 * Removed popups
 * Removed command prompts

2.2

 * Added Support for 3.1 (7C144)/3.1.1 (7C145)
 * This version contains a bug, that will be fixed.
 * Improved GUI (Windows)
 * Added a bit more user-friendly GUI (Mac)
 * Snow Leopard compatibility (Mac)

2.1

 * Added GUI
 * All 3 supported devices are implemented.

2.0

 * No longer required to rename ipsw to ih8sn0w.ipsw (Windows)
 * No longer required to move ipsw to C:\ (Windows)

1.0

 * Initial Release

Resources
iREB 4.0.x/4.1 r2 source code source code for OS X version