Never attempt an unsigned restore without a verified guide from r/LegacyJailbreak or The iPhone Wiki. One wrong move can force you into the latest iOS version.
Modern iOS versions offer security patches. For most users, staying up-to-date is safer than forcing an unsigned restore.
./futurerestore -t [YOUR_BLOB_FILE].shsh2 -s [LATEST_SIGNED].ipsw -b [LATEST_SIGNED].ipsw -p [LATEST_SIGNED].ipsw -m [LATEST_SIGNED].ipsw [TARGET_UNSIGNED].ipsw
Because of these risks, always attempt this on a secondary device if possible, and attempt it on your primary phone without a complete backup and full understanding of the consequences.
In this article, we will explore what an unsigned IPSW restore tool is, why you might need one, and provide a detailed breakdown of the available in 2025.
If you have the necessary components, the following free, open-source tools are your best options.
When you use an unsigned IPSW restore tool, it downloads and installs a custom IPSW file on your device. This file contains a modified version of the iOS operating system, which can be used to restore your device to its factory settings.
If you search for "unsigned IPSW restore tool free," you will likely stumble upon commercial software claiming they can downgrade any iPhone to any iOS version with a single click—no blobs required.
is a free Windows-based utility that simplifies many iOS tasks, though its success with unsigned IPSWs still depends on having saved blobs. Formacionpoliticaisc
The Ultimate Guide to Unsigned IPSW Restore Tools: Can You Downgrade iOS for Free?
This guide explores what these tools are, how they work, the best free options available, and the risks involved in bypassing Apple's signing restrictions. What is an Unsigned IPSW Restore Tool?
The short answer is:
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If you own an , the answer is more complex. Without saved SHSH blobs, no free tool can help you downgrade an unsigned version. Your only option is to wait for a new exploit (unlikely) or stay on the latest signed iOS.