futurerestore -t blob.shsh2 -s sep.im4p -b baseband.bbfw -p BuildManifest.plist target.ipsw
(a random number used once) is often included to ensure the signature is fresh. The Signature: shsh host
But what if you want to downgrade later? That’s where and tools like shsh.host come into play. What are SHSH Blobs? futurerestore -t blob
The Ultimate Guide to shsh.host: Saving and Managing Your iOS Blobs shsh host
You can only save blobs for iOS versions that Apple is currently signing.
By taking a few minutes to "host" your SHSH blobs today, you ensure that you—not Apple—decide which software runs on your hardware. current tools available for saving blobs on macOS or Windows? SHSH - The Apple Wiki SHSH blobs are unique to each device by ECID. The Apple Wiki