Ireb 4.0.x 4.1 Rc2.zip 1 [upd] -

: Ensure you have the latest version of iTunes installed on your PC.

Choose your specific device model from the list provided in the iREB interface.

Open iTunes (legacy versions like offer the highest success rates for these firmwares).

Designed specifically for iOS 4.0.x and 4.1 firmware cycles. Legacy Support Note This tool is for vintage Apple hardware iREB 4.0.x 4.1 RC2.zip 1

iREB is a lightweight Windows utility designed to exploit a vulnerability in Apple's bootrom. When you restore an iPhone, iPad, or iPod Touch using custom firmware (created via tools like Sn0wbreeze or PwnageTool), iTunes checks the signature of the software. If it detects a custom bundle, it kills the restoration and throws a 16xx series error.

Connect your Apple device to your computer via a 30-pin USB cable. Step 2: Running the Exploit

Technical role

: Includes features to fix recovery mode loops and bypass the 1015 error Standalone Operation

It does this by putting the device into a special "pwned DFU" state and uploading three necessary 'pwned' files to your iDevice using a component called iTunnel. In this state, iTunes cannot upload a standard patch that would normally block the installation of custom firmware.

: Includes a standalone toggle to kick devices out of a continuous recovery mode loop caused by baseband mismatches. : Ensure you have the latest version of

Follow this protocol to ensure a successful custom firmware restore using the iREB package: Step 1: Preparation

In the golden age of iOS jailbreaking—specifically around the era of iOS 4.0, 4.1, and 4.2.1—users frequently encountered stubborn iTunes errors when trying to restore custom firmware. These errors, notably the infamous , often left devices stuck in recovery mode, preventing the installation of custom IPSW files created by tools like Sn0wbreeze .