If you are trying to save blobs for an unsigned iOS version that is already running on your device, you can still retrieve the SHSH locally using a jailbreak.
Requirements: Device already on target iOS version + jailbreak (unc0ver, Taurine, palera1n for checkm8 devices).
Steps:
This bypasses Apple’s signing server entirely.
If the error occurs “when flashing,” try putting your device in Recovery Mode before requesting SHSH.
How:
This mode forces a fresh handshake with Apple’s TSS server, bypassing many local errors.
The most common reason for this error is trying to downgrade to an unsigned firmware.
Apple stops signing older iOS versions shortly after a new update is released. If Apple has stopped signing the firmware file (.IPSW) you are trying to flash, 3uTools will be unable to request the SHSH blob because the server simply refuses to generate one.
How to fix:
No. If Apple is not signing the iOS version, you cannot magically request a signature through 3uTools or any other tool. The only exceptions are:
However, if the iOS version is still signed and you get the error, the nine methods above will solve it in nearly every case. Start with Method 1 (check signing), then Method 3 (hosts file), and finally Method 6 (ECID mismatch).
Still stuck? Leave a comment below with your iDevice model, iOS version, and what you were doing when the error appeared. The troubleshooting community is active, and we respond daily.
Remember: Always save SHSH blobs while iOS versions are still signed. Don’t wait until Apple closes the window—otherwise, 3uTools will forever show “Unable to request SHSH.”
Disclaimer: Modifying iOS devices may void warranties. Proceed at your own risk. This guide is for educational purposes only. How To Fix Error Unable To Request Shsh On 3utools When
The "Unable to request SHSH" error in 3uTools typically occurs during the firmware flashing or restoring process, often stalling around the 9% mark
. This error indicates that the software cannot retrieve the necessary digital signatures (SHSH blobs) from Apple's TSS (Tatsu Signing Server) to authorize the installation of a specific iOS version. Core Causes Unsigned Firmware:
You are trying to install an iOS version that Apple has stopped "signing". Outdated Software:
Your version of 3uTools is incompatible with current Apple server protocols. Network Interference:
Unstable internet or firewall settings are blocking the connection to gs.apple.com Driver Corruption: Corrupted Apple mobile device drivers on your PC. Step-by-Step Fixes 1. Update 3uTools to the Latest Version
The most frequent fix is simply updating the software. Developers often release patches specifically to address SHSH request bugs. "Check Update" at the bottom right of the 3uTools interface.
Alternatively, download the newest version directly from the 3uTools Official Website 2. Verify iOS Signing Status
Apple only allows the installation of "signed" firmware. If the version you are trying to flash is "unsigned," 3uTools cannot request the SHSH blob.
website to see which iOS versions are currently signed for your specific device model.
Only attempt to flash versions marked with a green checkmark. 3. Use "iTunes Flash" Mode Instead of "Easy Flash"
Some users have found that the "Easy Flash" module in 3uTools can be buggy. Switching to the iTunes-based utility within 3uTools often bypasses the 9% error. Flash & JB iTunes Flash Select your firmware and attempt the flash again. 4. Repair Drivers via 3uTools Toolbox
If the communication between your device and the PC is faulty, the SHSH request may fail. tab in 3uTools. iTunes Utility Repair Driver
Wait for the process to finish, restart your computer, and try again. 5. Address Network and Connection Issues
The "Unable to request SHSH" error in 3uTools typically occurs at the 9% mark of the flashing process. It indicates that the software cannot obtain the necessary digital signature (SHSH blobs) from Apple's servers to authorize the firmware installation. Core Reasons for the Error If you are trying to save blobs for
Unsigned iOS Version: Apple has stopped "signing" the firmware version you are trying to install. You generally cannot restore to an unsigned version without previously saved SHSH blobs.
Outdated Software: Using an old version of 3uTools can cause compatibility issues with Apple's current verification protocols.
Network Interference: A weak internet connection or firewall/antivirus settings may be blocking the request to Apple's servers. Step-by-Step Solutions
Update 3uTools to the Latest VersionUpdating is the most frequent fix for this specific error.
Click Check Update at the bottom right of the 3uTools interface or download the latest version directly from the official 3uTools website.
Verify Apple's Signing StatusCheck if the firmware version is still being signed by Apple.
Look for a green "Signed" indicator in the 3uTools Smart Flash section or visit a site like IPSW.me to verify status.
If the version is unsigned, you must choose a newer, signed version of iOS. Check Connection Stability Ensure your internet connection is stable.
Temporarily disable any firewall or antivirus software that might be preventing 3uTools from communicating with the internet.
Try a different USB cable or port, preferably an original Apple lightning/USB-C cable.
Use "iTunes Flash" ModeSome users find that switching from "Easy Flash" to "iTunes Flash" within the 3uTools Pro Flash tab bypasses specific SHSH request bugs found in certain software releases.
Manual SHSH Retrieval (Advanced)If you are attempting to downgrade and have previously saved SHSH blobs:
Visit shsh.host and enter your device's ECID (found in 3uTools under the device information tab) to see if you have valid blobs saved on their servers. Import these blobs into 3uTools before starting the flash.
Are you attempting to downgrade to an older iOS version, or are you just trying to restore/update to the current one? How to Fix 3uTools 9% ERROR Unable to request SHSH Latest This bypasses Apple’s signing server entirely
To fix the "Unable to request SHSH" error in 3uTools (often occurring around the 9% mark during flashing), you generally need to
address either outdated software or an unsigned firmware version Quick Fixes Update 3uTools
: This is the most common resolution. Download and install the latest version from the Official 3uTools Website to ensure compatibility with Apple's current servers. Check Signing Status
: Apple only allows restores to "signed" iOS versions. If you are trying to flash an older, unsigned version without saved SHSH blobs, the request will fail because Apple's servers are no longer authorized to provide them. Switch Flash Modes : Some users find that using iTunes Flash utility instead of Easy Flash within 3uTools bypasses this specific bug. Step-by-Step Troubleshooting Verify Your Internet
: An unstable connection can disrupt communication with Apple’s SHSH servers. Ensure your network is reliable. Use DFU Mode : If you're stuck, put your device into before starting the flash process. Check SHSH Hosting
: For advanced users or those attempting a downgrade, you can check if your device's SHSH blobs are available on by copying and pasting your device's Hardware Check
: In rare cases, a faulty USB cable or port can cause the error. Try a different cable or a different USB port on your computer. If 3uTools continues to fail, alternative tools like
have been noted by the community to successfully repair or restore devices when 3uTools cannot. Which iOS version are you currently trying to flash or downgrade to? How to Fix 3uTools 9% ERROR Unable to request SHSH Latest
While less common for this specific "request" error, a faulty connection can interrupt the handshake process between your device, the PC, and the server.
How to fix:
If you are trying to save your iOS SHSH blobs or downgrade your iPhone/iPad using 3uTools, you may have encountered the frustrating error message: "Unable to request SHSH."
This error usually halts the process of signing a firmware file (IPSW), preventing you from utilizing the "Pro Flash" or "Easy Flash" features. Fortunately, this is rarely a hardware issue. It is almost always related to network connectivity or Apple’s signing servers.
In this guide, we will walk you through the most effective methods to resolve this error and get 3uTools working again.
If you are an iPhone or iPad user who enjoys customizing iOS, jailbreaking, or downgrading firmware, you have likely encountered the dreaded “Unable to request SHSH” error in 3uTools. This message typically appears in the middle of a critical process—such as saving SHSH blobs, flashing a firmware, or attempting a jailbreak.
Seeing this error can be frustrating, especially when you are following a tutorial step-by-step. But don’t worry: this error is common, and in 95% of cases, it is fixable without any advanced technical skills.
In this article, we will explain why this error happens and provide nine proven solutions to fix “Unable to request SHSH on 3uTools when trying to flash, jailbreak, or save blobs.”