The unique identifier for your device, available in iTunes/Finder. Note: Convert this to Hexadecimal (Hex) if it is in Decimal.
brew install libusb tsschecker
, can automatically fetch blobs from Apple and upload them directly to shsh.host for safe keeping. Resource Accessibility
Apple’s own Tatsu Signing Server (TSS) . Whenever you restore an iPhone via iTunes or Finder, your computer must connect to this specific host to authorize the firmware installation. shsh host
Unlike some other basic saving methods, services like this often support saving blobs for iOS beta versions.
The tools and techniques discussed here—from modifying your hosts file to using powerful utilities like iFaith and extraire—are your arsenal in this ongoing push and pull with Apple’s security model. Remember that the landscape is always changing, and newer devices with advanced security (like A12 and above) face significant restrictions. However, for a vast library of legacy devices, the power to downgrade and control your iOS experience remains firmly within your reach, one signature at a time.
You can only save blobs for iOS versions that Apple is currently signing. The unique identifier for your device, available in
An refers to specialized online servers or platform tools, such as the widely known platform SHSH Host , designed to capture, archive, and retrieve digital signatures known as SHSH blobs (Signature Hash Blobs). If you are looking to jailbreak your iPhone, downgrade your iPad to an older iOS version, or fix a flashing failure like the common "unable to request SHSH" 9% error on 3uTools, understanding how an SHSH host works is absolutely critical.
: By saving a copy of the signature (the SHSH blob) while it is still being signed, users can perform a "replay attack" later to trick the device into accepting an older, unsigned version. Device Uniqueness : Blobs are tied to a device's
A unique identifier for your device, ensuring the blobs cannot be used by someone else. Board ID: Identifies the hardware model. Save your blobs. In the dynamic
A desktop-based cross-platform tool used to automatically fetch and save blobs locally, with options to link to online backup hosts.
Connect your iOS device to a computer, open iTunes or Finder, and click on the serial number until the ECID is displayed. Alternatively, many SHSH host websites provide a guide to find the ECID via the device settings or third‑party tools.
Services like shsh.host have democratized this process, turning a complex technical procedure into a simple, reliable action. So, before you hit "Update" on your next iOS prompt, take a moment. Visit shsh.host . Save your blobs. In the dynamic, often unpredictable world of iOS jailbreaking and firmware management, it's one of the few guarantees that you can always keep your options open and your device truly your own.