"Overcoming the 'Unable to Request SHSH' Error in 3uTools: A Comprehensive Analysis and Solution"
If you are trying to restore an unsigned version of iOS without previously saved blobs, it is generally impossible via standard methods. 10 Common Flashing Errors With Solutions - 3uTools i unable to request shsh 3utools fix better
Several factors can contribute to the "unable to request SHSH blobs" error with 3uTools: Title: "Overcoming the 'Unable to Request SHSH' Error