How To Fix Error Unable To Request Shsh On 3utools When [better] -

You are trying to install an iOS version that Apple is no longer "signing" (authorizing). Apple usually stops signing older versions shortly after a new update is released.

Ensure the version you chose does have a "Signing Closed" or "Unsigned" badge next to it. How To Fix Error Unable To Request Shsh On 3utools When

A poor internet connection prevents 3uTools from communicating with Apple's servers. You are trying to install an iOS version