Try the "Fetch SHSH" or "Download SHSH" button again once the device is detected in a pre-boot state. 3. Disable Antivirus and Firewall
Let me know your device, iOS version, and whether the iOS is still signed — happy to help further.
Sometimes your ISP or local network (especially at schools or offices) blocks Apple's signing servers. Switching to a VPN can bypass these restrictions. how to fix error unable to request shsh on 3utools when top
DFU (Device Firmware Update) mode offers deeper access and can bypass standard recovery state issues.
Many iOS modification tools (like older jailbreak utilities) alter the Windows hosts file to redirect Apple's signing requests to alternative servers (like Cydia or Saurik's servers). If these redirections are still active, 3uTools will fail to reach the real Apple servers. Navigate to C:\Windows\System32\drivers\etc . Try the "Fetch SHSH" or "Download SHSH" button
Check the ipsw.me or 3uTools official website to see which versions are "signed" (green).
: Apple only "signs" certain firmware versions (usually the most recent). If you are trying to downgrade to an older, unsigned version, 3uTools will fail because Apple's servers are no longer authorizing those installs. You can check current signing status at IPSW.me . Sometimes your ISP or local network (especially at
Visit ipsw.me, select your device, and check the list. If the version is in Red , it is unsigned, and 3uTools cannot request a new SHSH blob for it. 2. Ensure Your Device is in the Correct Mode
If all else fails, reach out to 3uTools support or Apple support for further assistance: