[2025] How To Use SHSH Blobs To Downgrade iOS Devices?

Part 1: What Are SHSH Blobs and How Do They Work

SHSH blobs (Signature HaSH blobs) are Apple-generated digital signatures that verify and authorize the installation of specific iOS versions. They are essential for the firmware verification process during iOS updates or restores via iTunes or Finder. To downgrade iOS, saving SHSH blobs is a key step.

During an iOS update or restore, Apple’s servers generate a unique SHSH blob tied to your device and firmware version. This encrypted signature is stored both locally and on Apple’s servers to verify the installation. Its main role is to block unauthorized downgrades to older iOS versions, making SHSH blobs essential if you plan to downgrade iOS.

Apple signs iOS versions for a limited time to ensure devices run the latest secure firmware. Once the signing window closes, official downgrades are blocked. To bypass this, users often save and use SHSH blobs to downgrade iOS after signing ends.

Part 2. Step-by-Step Guide on How To Save SHSH Blobs Using Different Methods

Learning how to save SHSH blobs is crucial if you plan to downgrade your iOS device in the future. SHSH blobs are unique digital signatures that Apple uses to verify firmware installations, and once the signing window closes, they’re the only way to restore older iOS versions. By saving them early, you ensure your device has a fallback option in case of performance issues or bugs in newer updates. Below are four reliable methods to save SHSH blobs and protect your ability to downgrade iOS:

Method 1: Save SHSH Blobs With TSS Saver

One of the simplest ways to download SHSH blobs is by using the TSS Saver website. Follow these straightforward step-by-step instructions:

• Step 1: Open your web browser and navigate to the TSS Saver website. Find your device's ECID (Exclusive Chip ID) number. For that, Connect your iPhone, iPad, or iPod Touch to your computer and open iTunes. Click on your device's serial number in iTunes, and it will reveal the ECID.

• Step 2: Enter the ECID and your device's model on the TSS Saver website. Click on the "Submit" or "Save SHSH" button to generate and save the SHSH blobs for your device. It will generate a link that you need to save for accessing blobs in the future.

Method 2: Save SHSH Blobs via RedSn0w

RedSn0w is a popular jailbreaking tool for iOS devices and SHSH saver. You can use this tool to save SHSH blobs for your iPhone. Here are the steps to save SHSH blobs via RedSn0w:

• Step 1: Download RedSn0w from the website. Once the download is complete, locate and open the Zip file in your Downloads folder. Find the RedSn0w app in the Zip file and drag it to the Applications folder on your Mac. Afterward, open the RedSn0w app.
• Step 2: Inside the RedSn0w app, click the "Extras" option in the menu. Choose "SHSH Blobs" from the available choices. Click on "Fetch" to retrieve the SHSH blobs for your device.

• Step 3: Prepare your device for the Jailbreak process by putting it into DFU Mode. Follow the instructions outlined in the RedSn0w app or use the following instructions:

Instructions: Use an Apple-certified USB cable to connect your device to the Mac. Hold the Power button and use the slider to power off your device. Click "Next" in the RedSn0w app. Follow the on-screen timer and instructions to enter DFU (device firmware update) mode.

• Step 4: Once your device is in DFU mode, RedSn0w will identify your build and send the SHSH blobs to the Cydia server. They will be stored there until the jailbreak becomes available.

Method 3: Save Blobs via shshd

shshd is a convenient tweak designed for automatic blob saving. Once installed, it relieves you of the need to manually save blobs. It takes care of the entire process in the background. It's important to note that shshd requires your device to be jailbroken to function. Here are the steps for saving blobs via shshd:

Instructions: Launch your package manager and look for the "shshd" package using the search feature. Proceed to download and install the package. Tap "Done" when prompted to finish the installation process. This will automatically save the blobs every time you jailbreak the iPhone, and you can retrieve them from the TTS saver website by entering the ECID number.

Method 4: Save SHSH Blobs via iFaith

For older iPhone models, iFaith can be a valuable tool for downgrading. It is compatible with iOS devices running up to iOS 5.0.1. Moreover, the tool is also Windows only. Use the following steps to save SHSH blobs via iFaith:

• Step 1: Install and launch iFaith on your Windows computer. Click "Dump SHSH Blobs" and choose "Proceed" on the next screen.

• Step 2: Now connect your iOS device to the computer you want to downgrade and put it into DFU Mode. Once the device is in DFU mode, tap "Start." It will kickstart the process of capturing SHSH blobs. Once all SHSH blobs are captured, select the location on your computer to save them. You can later use the blobs to downgrade iOS or create a custom IPSW file.

Part 3. How To Use SHSH Blobs To Downgrade an iOS Device With the Help of Popular Tool

Wondering about how to downgrade an iOS device with SHSH blobs? Once you have SHSH blobs of your desired iOS version, you can use a tool called FutureRestore. Along with the tool, you need the desired unsigned IPSW file. Once you have all three items, move them to a folder and use the following steps:

• Step 1: Begin by connecting your iPhone to the computer using a USB cable and ensure your computer is connected to the internet. Next, open Terminal on Mac or Command Prompt on Windows.
• Step 2: Drag and drop the unarchived FutureRestore file into the Terminal (Mac) or CMD (Windows) window. Then, type "-t" to indicate you're going to use SHSH2 blobs. Now, drag and drop the SHSH2 blob file into the Terminal or CMD window.

• Step 3: Based on whether your iPhone has a SIM card or not, enter the respective flags. For iPhones without a SIM card, type "--latest-sep --latest-no-baseband." For iPhones with a SIM card, type "--latest-sep --latest-baseband."
• Step 4: Finally, drag and drop the unsigned IPSW file into the CMD or Terminal window. Once the file is in place, press Enter to initiate the downgrading process.

Part 4. Downgrading iOS Devices Without SHSH Blobs

While you can use SHSH blobs to downgrade iOS, they aren’t the only option. Tools like Dr.Fone - System Repair (iOS) offer a simpler way to downgrade or upgrade your device—even to the latest beta—without jailbreaking. It’s a reliable solution for users seeking flexibility without technical hassle."

Wondershare Dr.Fone – System Repair is a powerful iOS repair toolkit designed to keep your iPhone or iPad running smoothly. Trusted by millions, it can fix over 150 iOS system issues—including boot loops, update failures, and stuck screens—without causing data loss. More importantly, Dr.Fone also allows users to downgrade iOS versions safely and easily, without the need for jailbreaking or technical expertise. Follow these simple steps to downgrade your iOS device using Wondershare Dr.Fone:

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• Step 1: Opt for System Repair in Wondershare Dr.Fone

After installing and launching Wondershare Dr.Fone, access "System Repair" through "Toolbox".

• Step 2: Select the Device Type to Repair

Now choose "iOS" and click "iOS Upgrade/Downgrade" on the following screen.

• Step 3: Select Downgrade iOS

select "Downgrade iOS" from the two options for the execution of the required process.

• Step 4: Backup iDevice

A prompt will appear asking you to back up your iOS device data before executing this process.

💡 Essential Backup Before iOS Downgrade

Tips: To avoid data loss during iOS downgrade, it’s strongly recommended to use Dr.Fone - Phone Backup (iOS) for a full, secure backup of your iPhone. This tool enables you to selectively export and save important files—contacts, photos, messages, and more—before downgrading. Protect your data and ensure a smooth restore process after reverting to a signed iOS version.

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• Step 5: Connect iDevice with USB Cable

You will then be asked to connect your iDevice with a USB connection.

• Step 6: Get Your Desired iOS Firmware

It will show the list of available firmware. Click "Download" to get your desired firmware.

• Step 7: Perform the Downgrade Process

Wait for the firmware download to complete. When it is completed, click "Repair Now" to begin the downgrading process.

• Step 8: Successfully Downgrade Your iOS Device

This process will take some time, and when it is done, click "Done".

The Best Solution for iOS 26 Beta Issues

Tips: Dr.Fone - System Repair now enables zero-data-loss solutions for iOS 26 Beta crashes (boot loops/black screen/failed updates) and one-click downgrades to signed versions (e.g. iOS 18.5), completing in 10 minutes. Supports all iPhone models, bypassing iTunes factory reset risks. Downgrades require open Apple signing windows (real-time tool verification). Pre-export critical data when reverting from iOS 26.

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Conclusion

In summary, this guide explored how to use SHSH blobs to downgrade iOS, giving users a way to reinstall older versions on their devices. We covered multiple methods to save SHSH blobs and detailed how to use FutureRestore to complete the downgrade process.

If you don't have access to SHSH blobs or find the process too advanced, an easy solution is Wondershare Dr.Fone. This versatile tool proved to be a promising option for those seeking to explore older iOS versions without the reliance on saved SHSH blobs. With Dr.Fone's System Repair feature, users can downgrade their iOS devices with ease.

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