[2024 New Guide] How To Use SHSH Blobs To Downgrade iOS Devices

James Davis

Feb 29, 2024 • Filed to: Mobile Repair Solutions • Proven solutions

For iPhone users, Apple's iOS continues to evolve with new features and enhancements. It enriches the overall user experience and makes iPhones more appealing. However, with each iOS update, certain older devices may experience performance issues. Thus, many users have sought a way to revert to previous iOS versions. This process is referred to as "Downgrading the iOS Version."

Apple, however, typically allows the installation of the latest iOS version. It leaves little room for users to explore earlier firmware. In this comprehensive guide, we will explore the world of SHSH blobs. It will also discuss how they can be utilized to downgrade your iPhone's operating system.

Part 1: What Are SHSH Blobs and How Do They Work
Part 2. Step-by-Step Guide on How To Save SHSH Blobs Using Different Methods
Part 3. How To Use SHSH Blobs To Downgrade an iOS Device With the Help of Popular Tool
Part 4. Downgrading iOS Devices Without SHSH Blobs

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

SHSH blobs, short for Signature HaSH blobs, are digital signatures generated by Apple. Apple uses them to authenticate and validate the installation of specific iOS versions on its devices. They play a crucial role in the device's firmware verification process. It is used during the update or restore procedure. When a user begins a software update or restore through iTunes/Finder, a specific process takes place.

The Apple servers come into play during this process. They sign the particular iOS version being updated or restored with a unique SHSH blob. That blob is specific to the user's device and the requested firmware. This signature is encrypted and stored on Apple's servers, as well as locally on the device itself. The primary purpose of SHSH blobs is to prevent users from downgrading to older iOS versions.

It ensures that the latest and most secure software is running on compatible devices. Apple's signing window is usually open for a limited time after the release of a new iOS version. During which users can freely update or restore to that specific firmware. However, once Apple stops signing that version, attempting to install it on a device will result in an error through official means.

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

When it comes to saving SHSH blobs, there are several methods you can use. This ensures the safety and future usability of your iOS device's firmware. These methods are essential for users who wish to downgrade to specific iOS versions. Below are four methods to save SHSH blobs:

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.

note down the ecid number

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.

press the save button

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.

click on shsh blobs button

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.

enable the iphone dfu 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.

choose dump shsh blobs feature

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.

press the proceed button

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.

keep all files in one folder

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.

restore the unsigned ipsw file

Part 4. Downgrading iOS Devices Without SHSH Blobs

SHSH blobs are not the only way to downgrade your iOS device to your desired iOS version. There are many third-party tools available that allow you to downgrade your iOS device. The best tool in this regard is Wondershare Dr.Fone. This comprehensive tool lets you upgrade/downgrade your iOS device without jailbreaking. It also lets you upgrade your iOS device to the latest beta versions.

Wondershare Dr.Fone is also a complete system repair package to keep your iOS device fully functional. It can resolve over 150 iOS system issues without data loss. Here are the straightforward steps to downgrade your device with 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 its "Toolbox." Now choose "iOS" and click "iOS Upgrade/Downgrade" on the following screen.

proceed with ios upgrade downgrade feature

Step 2: Get Your Desired iOS Firmware

It is time to connect your iOS device to your computer. Use the original or Apple-certified cable to avoid complications. Once Wondershare Dr.Fone has detected the device, proceed with the "Downgrade" option. It will show the list of available firmware. Click "Download" to get your desired firmware.

download the required ios firmware

Step 3: Successfully Downgrade Your iOS Device

Wait for the firmware download to complete. When it is completed, click "Repair Now" to begin the downgrading process. This process will take some time, and when it is done, click "Done."

click on repair now button

Conclusion

To conclude, we embarked on a journey into the world of iOS downgrading using SHSH blobs. It is an ingenious method that allows users to explore older iOS versions on their devices. This guide discussed and provided different ways to save SHSH blobs. It also taught you how to downgrade the iOS version using SHSH blobs via a tool called FutureRestore.

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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