Often, after a failed SHSH request, your iPhone or iPad will be stuck in Recovery mode or DFU mode, showing a screen with a computer cable icon. Don't panic. You can exit these modes:

Let’s define “new” in context. You will see this error if:

Ensure your PC is connected to a stable internet connection (a wired Ethernet connection is preferred over Wi-Fi during a device flash). 5. Flash the Device in DFU Mode

If it works, keep that version until the newer 3uTools patches the bug.

. Apple uses SHSH blobs as digital signatures to authorize software installs; if they stop signing a version, the 3uTools servers cannot retrieve the necessary token to proceed. How to Fix the SHSH Error Update 3uTools : Download the latest version from the official 3uTools website