In the section, look for the iTunes Flash option instead of Easy Flash.
. This error often occurs at the 9% mark during the flashing process and is frequently caused by compatibility issues between the software and Apple's servers. Common Fixes for "Unable to Request SHSH"
(e.g., trying to use an iPhone 12 blob on an iPhone 13). Using a "beta" blob for a "stable" release (or vice-versa).
If you are trying to downgrade to an unsigned firmware and you actually possess the saved SHSH blobs on your computer: Go to the section in 3uTools. Select Pro Flash from the sub-menu.
Ensure you are not connected to a or proxy network, as these mask your IP and cause handshake failures with Apple’s TSS servers. Alternative Advanced Solutions
If 3uTools is failing to request an SHSH, these are the fundamental checks and simple fixes you should apply first.
Ensure your device is in or Recovery Mode before starting. 4. Troubleshoot Network and Hardware
When 3uTools says it cannot request SHSH, it means the tool cannot communicate with Apple’s signing servers (or a caching server like TSS Saver) to obtain the unique signature file required for your specific device and iOS version.
Have a specific error code from 3uTools? Share it in the comments below. For signed versions, the fixes above will work 99% of the time. For unsigned versions, let go of the hope—no tool can change Apple's cryptographic signature policy.
Because sometimes, the only fix better than 3uTools... is a fresh start.
When 3uTools says it cannot request SHSH blobs for your device, it means the software failed to get a digital signature from Apple’s servers for a specific iOS version. Apple only signs the latest iOS version for most devices. You cannot request SHSH for older, unsigned iOS versions unless you already saved them before Apple stopped signing.
Temporarily disable your firewall or add 3uTools as an exception. Ensure your internet connection doesn't have a VPN active, as Apple sometimes blocks known VPN IP addresses from accessing their signing servers. 4. Update 3uTools to the Latest Version
Encountering the "Unable to Request SHSH" error in 3uTools is a common bottleneck for iOS users attempting to flash or downgrade their device firmware. SHSH blobs (digital signatures) act as the gatekeeper for iOS installations, and when 3uTools fails to fetch them, the flashing process usually stalls around the 9% mark.
If you are already running an older, unsigned firmware and want to save the blobs for that specific version, you need to use a tool like Dumping blobs (available for older A11 devices and below).
