In computing, a SHSH blob, short for signature hash blob, is a digital signature that Apple generates and uses to control the iOS versions that users can install on their iOS devices …

Dec 28, 2025 · SHSH, an abbreviation of signed hash, refers to the signature (currently RSA) on boot images or APTickets that the device bootloader will verify before allowing execution of an …

5 days ago · Learn how querying for shsh file on apple server helps save blobs and manage iOS versions. Follow simple steps to restore or downgrade.

This tutorial is mainly introducing how to backup/download shsh using 3uTools. What's SHSH？ SHSH is short for Signature HaSH blobs, it is also called SHSH blob.

4 days ago · SHSH blobs (Signature HaSH blobs) are Apple-generated digital signatures that verify and authorize the installation of specific iOS versions. They are essential for the …

Aug 4, 2025 · SHSH is a special code that Apple gives to every iOS version. It helps your iPhone know which iOS it can install. When you update or restore, Apple checks this code. But Apple …

What is an SHSH file? An SHSH file, also known as a Signature HaSH, is a digital signature used by Apple to authenticate and verify firmware updates for iOS devices such as iPhones, iPads, …

Mar 3, 2024 · SHSH blobs are saved digital signatures that are used to restore iOS firmware to the devices even when Apple has stopped signing them. There are two ways of saving SHSH …

In computing, a SHSH blob, short for S ignature H a SH blob, is a digital signature that Apple generates and uses to control the iOS versions that users can install on their iOS devices …

May 7, 2021 · This wikiHow teaches you how to make sure you can downgrade your jailbroken iPhone’s firmware in the future by saving its SHSH blobs.