Fixing the Cannot Get SHSH from the Server Issue – Step-by-Step Guide

Part 1: What Does "Cannot Get SHSH from the Server" Mean?

The error message cannot get SHSH from the server usually appears when you're trying to save SHSH blobs using 3uTools or other tools like SHSH Host. But what does this mean?

SHSH blobs are unique digital signatures from Apple that link your device to a specific iOS version. They’re required to downgrade iOS, especially when Apple stops signing older versions like iOS 18, 17, or 16. Tools like 3uTools save these blobs during active signing periods. If 3uTools can't connect to Apple’s servers or the signing window has closed, you'll see the error cannot get SHSH from the server message.

In simple terms: no SHSH = no downgrade. That’s why this error can be a major roadblock for jailbreakers and iOS tinkerers.

Part 2: Why Am I Getting the "Cannot Get SHSH from the Server" Error in 3uTools?

The 3uTools error cannot get SHSH from the server often happens when the app fails to fetch SHSH blobs for your device. This issue can occur due to several common reasons:

1. Network Issues

If your internet connection is weak, unstable, or experiencing DNS issues, 3uTools may fail to communicate with Apple’s servers or SHSH Host. A temporary server outage could also trigger the "Unable to Request SHSH error" in 3uTools.

2. Unsigned iOS Version

Apple only signs the latest iOS versions. If you're trying to get SHSH blobs for an iOS version that Apple has stopped signing, your request will fail. This is one of the most common causes of the "error cannot get SHSH from the server" message.

3. Outdated 3uTools Version

Using an older version of 3uTools can lead to compatibility problems. The tool may not be able to connect properly or request the necessary data, resulting in the "unable to get SHSH blobs for this device" error.

These issues, alone or combined, lead to failures when requesting SHSH. The good news? They can usually be fixed with simple steps, which we’ll explain in the next section.

Part 3: How to Fix "3uTools Error Cannot Get SHSH from the Server"

When you see the error cannot get SHSH from the server in 3uTools, it usually means something is blocking communication between your device, 3uTools, and Apple’s servers. Whether it’s a network issue, an outdated 3uTools version, or an unsupported iOS firmware, there are several things you can try to resolve this. Let’s go through the fixes one by one.

Fix 1: Check Your Internet Connection

The most common reason behind the 3uTools error cannot get SHSH from the server is a poor or unstable internet connection. Since SHSH blobs are requested directly from Apple servers, a strong and stable connection is essential.

Steps to Check Your Internet Connection:

• Restart your router and modem.
• Try connecting to a different Wi-Fi network or use mobile data.
• Disable any VPN or proxy that might interfere with the connection.
• Run a speed test to ensure your internet is fast enough.
• If possible, try 3uTools on a different PC to rule out hardware/network settings.

Fix 2: Update 3uTools to the Latest Version

An outdated version of 3uTools may cause errors like "unable to request SHSH" or "cannot get SHSH from the server." Thankfully, the 3uTools team released version V2.16 specifically to fix this issue.

Steps to Update 3uTools:

• Launch 3uTools on your PC.
• Click "Menu" in the top-left corner.
• Choose "Check Update" at the bottom-right corner.
• If a new version (V2.16 or later) is available, click "Download and Install."

• Once updated, restart 3uTools and try requesting SHSH again.

Fix 3: Confirm iOS Version is Still Signed by Apple

3uTools cannot request SHSH blobs for an iOS version that is no longer being signed by Apple. If you're seeing "3uTools error cannot get SHSH from the server," the iOS version you’re targeting might have already expired.

Steps to Check iOS Signing Status:

• Go to ipsw.me.
• Select your device model.
• Look for iOS versions with green checkmarks (✅)—those are currently signed.

• Only request SHSH for iOS versions that are signed.
• If your desired version is unsigned, you cannot request its SHSH blobs anymore.

Apple only signs the latest iOS versions. Once the signing window closes, tools like 3uTools cannot fetch SHSH for those builds.

Fix 4: Try iTunes to Save SHSH or Restore Device

If 3uTools fails repeatedly with the error cannot get SHSH from the server, try using iTunes or Finder (macOS Catalina and later) to restore your device. This can help resolve deeper firmware issues that affect SHSH requests.

Steps to Restore Using iTunes:

• Connect your iPhone/iPad to your computer via USB.
• Open iTunes (or Finder on Mac).
• Select your device when it appears.
• Click "Restore iPhone" (or your device’s name).

• Follow the on-screen instructions to complete the restore.

Once complete, open 3uTools again and try requesting SHSH. This method can also solve related issues like iTunes error 3503.

Part 4: Best Alternatives to 3uTools When cannot get shsh from the server

If 3uTools shows the unable to request SHSH error and stops you from downgrading iOS, Tenorshare ReiBoot is one of the best alternatives to try. It simplifies the entire downgrade process by removing the need for SHSH blobs.

Whether you're stuck on update/downgrade screen or facing other system issues, ReiBoot provides a safe, reliable, and beginner-friendly way to roll back to a stable version without using iTunes or jailbreak. It’s especially helpful for users looking for a quick solution without dealing with complex tools or technical steps.

How to fix Error cannot get shsh from the server Using ReiBoot:

• Download and install Tenorshare ReiBoot on your PC or Mac. Connect your iPhone or iPad to the computer via USB, then open ReiBoot and click on "iOS Upgrade/Downgrade."
  
• Choose the "Downgrade" option to begin the downgrade process.
  
• Select your desired iOS version from the list of available firmware options.
  
• Click on "Initiating Downgrade" and let ReiBoot do the rest. No SHSH blobs are required.
  
• ReiBoot will automatically uninstall your current iOS version (such as iOS 18 beta) and install the chosen stable version. Once completed, click "Done" to finish.
  

Part 5: FAQs About cannot get shsh from the server

1.What is SHSH in 3uTools?

SHSH in 3uTools stands for Signed Hash SHell. It’s a type of digital signature Apple uses to verify iOS versions. When you install or downgrade firmware, Apple checks this SHSH blob to make sure you're using an approved version.

2.What’s the best time to save SHSH blobs?

The best time to save SHSH blobs is as soon as Apple releases a new iOS version while Apple is still signing it. Once Apple stops signing that version, you can’t save its SHSH blob anymore. Saving blobs early gives you a chance to downgrade later.

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