: Apple stops "signing" older iOS versions shortly after new ones are released. If you are trying to downgrade to an unsigned firmware, the request will fail because Apple's servers will no longer provide the necessary SHSH blobs. Switch to "iTunes Flash"
Here’s a step‑by‑step guide to troubleshoot and fix the error in 3uTools (when trying to save SHSH blobs, especially for unsigned iOS versions or when using the “Top” option for a device).
: If "Easy Flash" fails, some users report success switching to the iTunes Flash utility within 3uTools.
For the best success rate, always try flashing in the morning hours, as Apple's servers are less busy. If you are still having trouble, let me know: What iOS version are you trying to flash? What iPhone model are you using? Is your device jailbroken ?
: Confirm the IPSW file you downloaded matches your exact device model. how to fix error unable to request shsh on 3utools when top
This works well if you have an older iPhone (iPhone 4 or earlier).
If you can't obtain the SHSH blobs needed, consider using a third-party repair tool.
If you are intentionally trying to downgrade to an unsigned iOS version using SHSH blobs you saved in the past, a standard flash will always trigger this error. To bypass it using your saved blobs, you must use specific pathways: Navigate to the > Pro Flash tab in 3uTools.
This error pops up because 3uTools can't get the digital signature needed from Apple to install the software you want. : Apple stops "signing" older iOS versions shortly
: Ensure you have a stable internet connection, as 3uTools must reach Apple's servers to verify the firmware.
How to Fix “Unable to Request SHSH” Error on 3uTools When Tapping “Get SHSH”
To fix the error on 3uTools, you must either flash an officially signed Apple firmware version or manually fetch a valid SHSH blob/APTicket using an external host . This error typically stops your flashing progress at 9% or 19% because 3uTools cannot obtain Apple’s digital signature required to authenticate the IPSW firmware file.
The "Unable to Request SHSH" error is usually caused by one of these three primary issues: : If "Easy Flash" fails, some users report
C. DFU Mode (if Recovery fails)
Use iPSW.me or check the "Sign Status" tab in 3uTools. If the version is not green, you cannot restore to it without saved SHSH blobs. 2. Update 3uTools to the Latest Version
Users have reported that the mode in 3uTools can bug out on certain firmware versions. Switching to iTunes Flash often bypasses this issue. Navigate to the Flash & JB tab. Select Pro Flash . Choose iTunes Flash instead of Easy Flash. 3. Use an External SHSH Host Service