A key feature of iREB 4.0.x-4.1-RC2 is its ability to bypass 16xx errors
These errors happened because iTunes would check if the device was in a "pwned" state before allowing a custom restore. If the device was in standard DFU mode, iTunes would reject the custom firmware and fail the restore. The Solution: iREB (iH8sn0w's Recovery Bypass)
The Evolution of iREB: From 4.0.x to 4.1 RC2 iREB 4.0.x 4.1 RC2.zip 1
1: This could indicate a sequence number, version number, or simply a numeral that is part of the file name.
In 2010, Apple significantly tightened its security. When users tried to restore their iPhones (2G, 3G, 3GS, or 4) or iPod Touches to custom firmware (IPSW) using iTunes, they were frequently met with "Unknown Error" codes, specifically 1600, 1601, 1602, 1603, and 1604. A key feature of iREB 4
: Does not require libusb or specialized drivers to be manually installed. Simplified GUI
Download and Extract: Download the iREB 4.0.x 4.1 RC2.zip file and extract it to your desktop. In 2010, Apple significantly tightened its security
Uses iTunnel to fix Recovery Mode loops and bypass error 1015. Driver Independence: This version no longer requires to function on modern systems. Broad Support: