Click the button corresponding to your specific device model.
Hold the and Home buttons simultaneously for exactly 10 seconds.
To use the tool safely, follow these steps to place your device in a Pwned DFU environment. Step 1: Preparation iREB 4.0.x 4.1 RC2.zip 1
While iREB 4.0.x 4.1 RC2.zip remains an essential historical asset for archiving and restoring old smartphone hardware, it is built exclusively for vintage architectures. Modern platforms feature secure enclaves, hardware-level APTicket signing, and stringently restricted USB protocols that render these legacy memory overflows ineffective.
The software exploits vulnerabilities found in the bootrom of specific Apple A-series processors (like the S5L8900 and A4 chips). Click the button corresponding to your specific device model
: Once iREB confirms your device is "pwned," open iTunes, hold Shift (Windows) or Alt/Option (Mac) , and click "Restore" to select your custom .ipsw firmware file. Quick Tips
However, Apple designed iTunes to block unauthorized or modified firmware. When iTunes detected a custom IPSW on a standard device, it would instantly stop the process and display an error code—most commonly . iREB resolves this by exploiting low-level hardware vulnerabilities before iTunes can check the device. How iREB 4.0.x / 4.1 RC2 Works Step 1: Preparation While iREB 4
: Connect your device and put it into DFU Mode (hold Home and Power for 10 seconds, then release Power while holding Home for another 10 seconds).