2021 | Ireb+40x+41+421+rc3zip+extra+quality

iREB would "pwn" the device using exploits like limera1n or steaks4uce .

It was famously used to fix Error 1600, 1601, 1602, 1603, and 1604 during the restoration process. ireb+40x+41+421+rc3zip+extra+quality

Once the device was pwned, the user could open iTunes and "Shift+Restore" to select their custom 4.0.x, 4.1, or 4.2.1 firmware. iREB would "pwn" the device using exploits like

(iH8sn0w's REcovery Buster) is a GUI application designed to put iOS devices into a "pwned" DFU state. This state is necessary for iTunes to accept a custom IPSW (iPhone Software) file, which is often used to jailbreak or downgrade a device. (iH8sn0w's REcovery Buster) is a GUI application designed

Verified legacy versions are often hosted on community archives like The Apple Wiki . How to Use iREB (Historical Context)

The original source code for iREB 2.0 can be found on GitHub .

Users would download the rc3.zip and extract the application.