Are you tired of being stuck on a newer version of iOS and want to downgrade to an earlier version without blobs? You’re not alone! Many iPhone users find themselves in this predicament, especially when they realize that the latest iOS update has brought more problems than benefits. In this article, we’ll walk you through the process of downgrading to unsigned iOS without blobs, and provide you with essential tips and considerations to keep in mind.
What Are IOS Blobs, And Why Do You Need Them?
Before we dive into the downgrading process, it’s essential to understand what iOS blobs are and their significance in the downgrading process. iOS blobs, also known as SHSH blobs, are cryptographic signatures that Apple uses to verify the authenticity of iOS firmware files. When you upgrade your iPhone to a new iOS version, Apple stops signing the older firmware, making it impossible to downgrade without blobs.
Think of blobs as a digital certificate that Apple issues for each iOS version. When you upgrade, the certificate is revoked, and Apple only signs the latest firmware. This is a security measure to prevent users from downgrading to older, potentially vulnerable versions of iOS. However, this also means that if you want to downgrade to an unsigned iOS version, you’ll need to find a way to bypass this security mechanism.
Why Downgrade To Unsigned IOS Without Blobs?
So, why would you want to downgrade to an unsigned iOS version without blobs? There are several reasons:
- Compatibility issues: The latest iOS update might be incompatible with your favorite apps or jailbreaks, causing problems and frustrating experiences.
- Performance issues: Newer iOS versions might be slower or more buggy than older ones, leading to a poor user experience.
- Jailbreaking: If you’re a jailbreaker, you might want to downgrade to an iOS version that’s still jailbreakable, as newer versions often patch jailbreak vulnerabilities.
The Challenges Of Downgrading To Unsigned IOS Without Blobs
Downgrading to an unsigned iOS version without blobs is a complex process, and it’s not recommended for the faint of heart. Here are some of the challenges you’ll face:
- Apple’s security measures: As mentioned earlier, Apple stops signing older firmware versions, making it difficult to downgrade without blobs.
- Device compatibility: Not all devices are compatible with older iOS versions, and downgrading might not be possible on newer devices.
- iOS version limitations: You can only downgrade to an iOS version that’s still supported by your device’s hardware. For example, you can’t downgrade an iPhone 12 to iOS 10, as it’s not compatible.
The Downgrading Process: A Step-by-Step Guide
Now that we’ve covered the basics, let’s dive into the downgrading process. Please note that this process is for advanced users only and should be attempted at your own risk.
Preparation
Before you start, make sure you have the following:
- A compatible device: Ensure your device is compatible with the iOS version you want to downgrade to.
- A computer with iTunes: You’ll need a computer with iTunes installed to put your device in recovery mode.
- The correct firmware file: Download the correct firmware file (IPSW) for your device and the iOS version you want to downgrade to.
Step 1: Put Your Device In Recovery Mode
Connect your device to your computer and open iTunes. Press and hold the Power button until the slider appears, then slide it to the right to shut down your device. Immediately press and hold the Volume Down button while connecting your device to your computer. Hold the Volume Down button for 10 seconds, then release it. Your device should now be in recovery mode.
Step 2: Open Prometheus And Download The Firmware
Open Prometheus, a tool specifically designed for downgrading iOS devices without blobs. Download the correct firmware file (IPSW) for your device and the iOS version you want to downgrade to.
Step 3: Create A Custom IPSW File
Using Prometheus, create a custom IPSW file by selecting the correct firmware file and following the on-screen instructions. This custom IPSW file will allow you to bypass Apple’s security measures.
Step 4: Put Your Device In DFU Mode
Disconnect your device from your computer, then press and hold the Power button for 3 seconds. Immediately press and hold the Volume Down button while keeping the Power button pressed. Hold both buttons for 10 seconds, then release the Power button while keeping the Volume Down button pressed. Your device should now be in DFU (Device Firmware Update) mode.
Step 5: Restore Your Device Using The Custom IPSW File
Open iTunes and select your device. iTunes should detect your device in recovery mode. Click “Restore iPhone” and select the custom IPSW file you created earlier. iTunes will restore your device to the downgraded iOS version.
Tips And Considerations
Before you attempt to downgrade, keep the following tips and considerations in mind:
- Backup your data: Downgrading will erase all your data, so make sure to backup your device before attempting the process.
- Check compatibility: Ensure your device is compatible with the iOS version you want to downgrade to.
- Use a reputable tool: Only use reputable tools like Prometheus to create custom IPSW files. Avoid using sketchy tools that might brick your device.
- Be cautious: Downgrading to an unsigned iOS version without blobs can be risky, and you might end up with a bricked device. Proceed with caution and at your own risk.
Conclusion
Downgrading to an unsigned iOS version without blobs is a complex process that requires careful consideration and caution. While it’s possible to do so, it’s essential to understand the risks involved and the challenges you’ll face. By following this guide and taking the necessary precautions, you can successfully downgrade your iPhone to an earlier iOS version without blobs. Remember to stay informed, and always prioritize your device’s safety and security.
What Is Downgrading To An Unsigned IOS, And Why Would I Want To Do It?
Downgrading to an unsigned iOS means reverting to a previous version of iOS that is no longer signed by Apple. This process allows you to downgrade your device’s operating system to a version that is no longer supported by Apple. You might want to do this if you’re experiencing issues with the latest version of iOS or if you prefer the features and performance of an earlier version.
Additionally, downgrading to an unsigned iOS can be useful for developers and testers who need to test their apps on different versions of iOS. It can also be helpful for users who want to jailbreak their device, as some jailbreaks are only compatible with specific versions of iOS.
What Are SHSH Blobs, And Do I Need Them To Downgrade To An Unsigned IOS?
SHSH blobs are signature hashes that Apple uses to verify the authenticity of iOS installations. In the past, you needed to save your SHSH blobs in order to downgrade to an unsigned iOS. However, with the new methods and tools available, SHSH blobs are no longer required. You can now downgrade to an unsigned iOS without having to save your SHSH blobs.
That being said, it’s still important to understand what SHSH blobs are and how they work. Having a basic understanding of this concept can help you navigate the downgrading process more easily and avoid potential issues. But again, you don’t need to worry about saving your SHSH blobs anymore, as the new methods make it possible to downgrade without them.
What Are The Risks Involved In Downgrading To An Unsigned IOS?
Downgrading to an unsigned iOS can be a complex process, and like any complex process, it comes with some risks. One of the main risks is bricking your device, which means rendering it unusable. This can happen if you make a mistake during the downgrading process or if your device’s firmware becomes corrupted.
Other risks include data loss, as downgrading can erase your device’s data and settings. Additionally, downgrading to an unsigned iOS can also cause compatibility issues with certain apps and features. It’s essential to weigh these risks against the benefits of downgrading and to take necessary precautions to minimize the risks.
What Are The System Requirements For Downgrading To An Unsigned IOS?
To downgrade to an unsigned iOS, you’ll need a compatible device that supports the version of iOS you want to downgrade to. You’ll also need a computer with a compatible operating system, such as macOS or Windows, and enough storage space to download the necessary tools and files.
Additionally, you’ll need to have a basic understanding of command-line interfaces and terminal commands, as well as some technical expertise to navigate the downgrading process. It’s also recommended to have a backup of your device’s data and settings before starting the process, in case something goes wrong.
How Long Does The Downgrading Process Take, And Is It Complicated?
The downgrading process can take anywhere from 30 minutes to several hours, depending on the complexity of the process and the speed of your computer. The process involves downloading and installing the necessary tools and files, using command-line interfaces, and uploading the firmware to your device.
While the process can be complex, following a comprehensive guide and having some technical expertise can make it more manageable. It’s essential to be patient and cautious during the process, as making a mistake can lead to errors or even brick your device.
Will Downgrading To An Unsigned IOS Affect My Device’s Warranty Or Apple ID?
Downgrading to an unsigned iOS can potentially void your device’s warranty, as it’s an unsupported process. However, if you’re no longer under warranty, this shouldn’t be a concern.
As for your Apple ID, downgrading to an unsigned iOS shouldn’t affect it directly. However, if you’re using a jailbroken device or apps that are not compatible with the downgraded version of iOS, you might experience issues with your Apple ID or App Store access.
Can I Upgrade Back To The Latest Version Of IOS After Downgrading?
Yes, you can upgrade back to the latest version of iOS after downgrading to an unsigned iOS. However, you’ll need to restore your device to its factory settings, which will erase all your data and settings. You can then set up your device as new or restore from a backup.
Keep in mind that upgrading back to the latest version of iOS will likely remove any jailbreak or customizations you’ve made to your device. You’ll need to re-jailbreak your device or re-apply any customizations you want to keep.