Connect your computer to a mobile hotspot to bypass local router restrictions. Disable security software temporarily Turn off Windows Defender or third-party antivirus shields.
This bypasses Apple’s signing server entirely. How To Fix Error Unable To Request Shsh On 3utools When
The primary culprit behind this error is attempting to flash an unsigned firmware file. Once Apple closes the signing window for an older iOS version, standard tools cannot request its SHSH profile. Open the tab in 3uTools. Look closely at your downloaded firmware version list. Connect your computer to a mobile hotspot to