Download and install from its official GitHub repository.
Your computer's firewall, antivirus, or modified hosts files might be blocking communication with the verification servers. Step-by-Step Fixes for 3uTools SHSH Request Failures
Locate your device's and EID in 3uTools by clicking on the device info. i unable to request shsh 3utools fix better
You can only request SHSH blobs for iOS versions that Apple is .
When you attempt to fetch these certificates via 3uTools, the software communicates directly with Apple's servers. If this communication channel is disrupted, the process fails, resulting in the request error. Primary Reasons for the Error Download and install from its official GitHub repository
Before changing any settings, verify if the iOS version you want to install is still being signed by Apple. Open 3uTools and go to the tab. Look at the firmware list for your device.
3uTools tries to request these blobs from two places: You can only request SHSH blobs for iOS
Change the file type dropdown from "Text Documents" to . Open the hosts file. Delete any lines containing apple.com or ://apple.com . Save the file and restart your PC. 4. Whitelist 3uTools in Windows Firewall
Choose the Advanced Repair option to completely uninstall and reinstall the connection drivers. Alternative Methods to Save SHSH Blobs
Input your ECID and Identifier, then submit. The website will download and store your signed blobs on their server for future download. Blob Saver (Desktop Application)