4.0.x 4.1 Rc2.zip 1 | Ireb

Follow the on-screen instructions to put your device into DFU mode. The screen will remain black.

Attempting to downgrade iOS while a higher baseband version is installed. Error 1600 / 1604

, or iPod Touch, you have likely run into the dreaded iTunes Error 1600, 1601, 1602, or 1015. During the early era of iOS jailbreaking, custom firmware (IPSW) files allowed users to upgrade or downgrade their devices without losing their jailbreaks or baseband configurations. However, iTunes aggressively blocked these custom installations by strictly validating the device's state during recovery.

Specifically optimized to handle devices running iOS 4.0, 4.0.1, 4.0.2, and iOS 4.1. iREB 4.0.x 4.1 RC2.zip 1

: Once the screen turns green or iREB confirms success, you can open iTunes and Shift+Click (Windows) the "Restore" button to select your custom IPSW. Technical Note The "RC2" in the filename stands for Release Candidate 2

Reviving an older device using this tool requires a precise order of operations. Follow these steps carefully: Prerequisites

If you are an enthusiast of legacy iOS jailbreaking, you have likely encountered frustrating error codes while restoring old Apple devices. During the iOS 4 era, attempting to flash custom firmware often resulted in iTunes halting the process with Error 1600, 1601, 1602, or 1015. Follow the on-screen instructions to put your device

: For newer devices or iOS 10+, you should look into tools like Sideloadly or the Legacy iOS Kit .

Keep your device plugged into the computer. Open your legacy version of iTunes. iTunes will notify you that it has detected an iPhone in recovery mode.

iREB is a lightweight Windows-based application that puts your device into a "Pwned DFU" state. In this state, the device's bootloader is patched to accept custom IPSW (iPhone Software) files that iTunes would otherwise reject. Supported Devices for RC2 Error 1600 / 1604 , or iPod Touch,

Connect your legacy Apple device to your computer using a 30-pin USB cable and follow the strict timing sequence:

: Includes a standalone toggle to kick devices out of a continuous recovery mode loop caused by baseband mismatches.

The "RC2" (Release Candidate 2) designation indicates a refined version of the tool. Initial releases of iREB often had compatibility issues with specific USB drivers or hardware revisions. RC2 typically offered improved stability for the iPhone 4 (GSM) and fixed bugs that caused the "White Screen" loop to fail on certain Windows machines.

ReсBoot - легкий ввод/вывод iДевайса из Recovery Mode!