Check sites like IPSW.me to see if the firmware is still green (signed).
Use the "Query SHSH" feature and manually paste your ECID if prompted, ensuring the model identifier matches your device exactly. Common Workarounds If the error persists despite the steps above: how to fix error unable to request shsh on 3utools when new
To resolve this issue, follow these troubleshooting steps in order. Verify Apple's Signing Status Check sites like IPSW
If the "New" device status is preventing 3uTools from reading your info automatically, you can try a manual approach. Go to the tab in 3uTools. Locate your ECID and copy it. Navigate to the Flash & JB section, then SHSH (Blobs) . how to fix error unable to request shsh on 3utools when new
Manually put your iPhone or iPad into (the steps vary by model).