: If you want to move from a newer iOS version back to an older one (for better performance or a specific jailbreak), you need the SHSH blobs for that older version .
In the world of iOS customization, (Signature Hash Blobs) are essentially the "digital keys" Apple uses to control which versions of iOS you can install on your device. What are SHSH Blobs? shsh blobs
Extracting SHSH 11.2.6... Blob contains: "Daddy, I took this picture of a squirrel!" [AUDIO HASH] : If you want to move from a