Through trial and error, I have tested several methods to bypass this error. Here is the most effective solution.
If you are an iPhone, iPad, or iPod touch user who enjoys restoring, jailbreaking, or downgrading iOS, you have almost certainly encountered 3uTools. This free Windows-based utility is a favorite among enthusiasts because it simplifies complex tasks like flashing firmware, backing up SHSH blobs, and managing iOS devices. how to fix error unable to request shsh on 3utools when new
However, one of the most frustrating roadblocks appears when you try to save SHSH blobs for a new (just-released) iOS version. You click the button, wait a few seconds, and then get the dreaded red error message:
"Unable to request SHSH" or "Get SHSH failed". Through trial and error, I have tested several
Why does this happen specifically when the iOS version is new? And more importantly, how can you fix it? Sometimes the latest 3uTools has bugs with new devices
In this detailed guide, we will break down exactly what SHSH blobs are, why 3uTools fails with new firmware, and step-by-step solutions to resolve the error—even if Apple has just stopped signing the previous version.
Sometimes the latest 3uTools has bugs with new devices. Uninstall the current version and try 3uTools v2.58 or earlier (available from trusted archives). Older versions may use different signature request methods.