Sometimes, 3uTools misreads the ECID (Exclusive Chip ID) of a brand-new device, especially if the USB driver is outdated. Manually entering the ECID forces the tool to bypass its auto-detection bug.
How to find your ECID:
If you’ve just unboxed a new iPhone or updated to a fresh iOS version, you might encounter a frustrating roadblock when using 3uTools: "Unable to request SHSH." how to fix error unable to request shsh on 3utools when new
This error typically pops up when trying to flash (restore) firmware, jailbreak, or save SHSH blobs. For a "new" scenario—meaning a new device model or a brand-new iOS release—this is especially common. Below is a detailed breakdown of why this happens and how to fix it. Sometimes, 3uTools misreads the ECID (Exclusive Chip ID)
Firewalls and antivirus software can sometimes interfere with 3uTools' ability to connect to Apple's servers. For a "new" scenario—meaning a new device model
Ensure your computer's date and time are correct. Apple verifies SHSH blobs based on the current date and time.
Sometimes the error occurs because the device isn't in the right state for the request.