Instead of flashing directly:
If you are using the standard update method and failing, try the alternative flashing modes within 3uTools.
Sometimes the error is due to 3uTools trying to request SHSH from a local cache instead of Apple directly.
Instead of flashing directly:
If you are using the standard update method and failing, try the alternative flashing modes within 3uTools.
Sometimes the error is due to 3uTools trying to request SHSH from a local cache instead of Apple directly.