If you upgrade to a buggy new iOS version (e.g., iOS 20), you cannot officially go back to a previous version. By saving your ECID's SHSH blobs, you can restore to older, jailbreakable versions Reddit users confirm .
Your ECID may be displayed differently depending on the tool you use (hexadecimal is common, e.g., 00000123456789AB ).
Apple only "signs" specific iOS versions. When Apple stops signing an older iOS version, you can no longer install it. By registering your ECID with online blob-saving services (like TSS Saver or blobs.sh), you can download and save these digital signatures. If an exploit is released in the future, these saved blobs allow you to downgrade or upgrade to unsigned iOS versions. 2. Using Jailbreak Tools and Developer Exploits register ecid iphone new
After clicking submit, the website will generate a unique link tied specifically to your device. This page serves as your personal cloud drive where all your current and future iOS digital signatures will be stored safely forever. Troubleshooting Common ECID Registration Errors
Launch (on macOS) or the Apple Devices App (on Windows). If you upgrade to a buggy new iOS version (e
Right-click on and choose Properties . Go to the Details tab.
Sometimes confused with the UDID needed for Apple Developer app testing. How to Find Your ECID (Step-by-Step) Apple only "signs" specific iOS versions
If you are looking for more specific tutorials, I can help you find official sources for the latest jailbreak tools (like checkra1n or dopamine) once you know your iOS version. Alternatively, I can provide a step-by-step guide on how to actually use the saved blobs to restore your phone.
ECID codes can display as either (containing letters and numbers, e.g., 1A2B3C4D5E6F ) or Decimal (only numbers). Take note of which format your tool gave you. If your code contains letters, it is Hexadecimal. Step 2: Submit to TSS Saver (Conan's Website)
The ECID is part of Apple's strict firmware signing process. By storing the ECID within the chip, Apple ensures that even if someone creates a malicious version of iOS, they cannot install it on your device because the (which contains the ECID) will not match.