SHSH blobs are unique digital signatures Apple uses to verify the iOS version you are installing.
Security software often blocks the specific ports used to communicate with Apple's signing servers. i unable to request shsh 3utools fix better
This only works for 64-bit devices (iPhone 5s and later) and usually requires the device to be in DFU mode . SHSH blobs are unique digital signatures Apple uses
Your firewall, antivirus, or host file is blocking communication with 3uTools or Apple servers. i unable to request shsh 3utools fix better