How To Fix Error Unable To Request Shsh On 3utools When Upd May 2026

How to Fix the “Unable to Request SHSH” Error on 3uTools When Updating or Restoring iOS

3uTools is arguably one of the most powerful third-party desktop applications for managing iOS devices. It offers features that even Apple’s official Finder and iTunes lack, such as backing up individual apps, flashing custom firmware, and, critically, saving SHSH blobs.

However, many users hit a frustrating wall when trying to update or restore their iPhone or iPad. The process stops abruptly, and 3uTools displays the dreaded error message: “Unable to request SHSH” or “Unable to get SHSH from device.”

If you are staring at this error right now, don’t panic. This guide will explain exactly what this error means, why it happens, and ten proven methods to fix it permanently.

Method 8: Change to a Different USB Port and Cable

Believe it or not, unstable USB connections can interrupt the SHSH request mid-process. how to fix error unable to request shsh on 3utools when upd

Use an original Apple Lightning/USB-C cable.
Connect directly to a USB port on the back of your PC (avoid hubs or front panel ports).
If using a laptop, plug into the charger (power saving modes can cut USB power).

Fix #7: Reinstall 3uTools (Clean Install)

Corrupted configuration files (especially preferences.ini) can break SHSH requests.
Action: Uninstall 3uTools via Control Panel, then delete the folder C:\Users\[YourName]\AppData\Local\3uTools. Reboot and download the latest version from the official website.

Method 2: Switch to "Easy Flash" Mode Without Data Retention

If you absolutely need to keep data, "Easy Flash" is sometimes more forgiving than "iTunes Flash."

Steps:

Go to "Flash & JB" > "Easy Flash" .
Select the firmware.
Make sure "Retain User Data" is unchecked.
Click "Flash" .

If the error persists, proceed to the next method—it means your firmware is likely unsigned. How to Fix the “Unable to Request SHSH”

Method 1: Uncheck "Retain User Data" (Most Common Fix)

This is the #1 culprit. When you check "Retain User Data," 3uTools uses a modified flash process that requires specific SHSH validation. Apple’s modern servers often reject it.

Steps:

Open 3uTools and connect your iDevice.
Navigate to "Flash & JB" > "iTunes Flash".
Select your desired iOS version.
UNCHECK the box that says "Retain User Data".
Click "Flash" .

Note: This will erase your device completely. But it almost always bypasses the SHSH request error. You can restore from an iCloud or iTunes backup afterward. Method 8: Change to a Different USB Port

Part 4: Network & Firewall Solutions (Most Common Fix)

If the firmware is definitely signed, the problem is almost certainly your computer’s inability to reach Apple’s signature server (gs.apple.com).

Exception – Using saved blobs:

If you saved your own SHSH blobs using TSS Saver or 3uTools before Apple stopped signing them, you can use the "Pro Flash" (Retain User’s Data) mode and manually load your .shsh2 file. Otherwise, move on.

What NOT to Do

❌ Don’t unplug the device during SHSH request – can brick the device.
❌ Don’t repeatedly retry without fixing the cause – Apple may temporarily throttle requests.
❌ Don’t use unauthorized or modified IPSW files – they will never pass SHSH verification.