By following the fixes in this guide—updating the software, checking signing status, changing request sources, or using alternative tools like TSS Saver—you can successfully save SHSH blobs for any still-signed iOS version.
Right after Apple releases a new iOS update (e.g., iOS 17.2), the previous version (e.g., iOS 17.1.1) stops being signed within hours or days. 3uTools tries to fetch blobs for that older version from Apple’s signing window, but it’s already closed. Additionally, 3uTools may not have updated its internal firmware manifest lists immediately after a new release, causing a mismatch. how to fix error unable to request shsh on 3utools when new
For advanced users, this script-based tool supports saving blobs even for unsigned versions if you have a jailbreak that allows setting a boot nonce. By following the fixes in this guide—updating the
3uTools has multiple backends for fetching SHSH: Additionally, 3uTools may not have updated its internal
To resolve this issue, follow these troubleshooting steps in order. Verify Apple's Signing Status
If the version is unsigned, your only option is to save blobs using a different method (see Fix #6) that relies on on-device nonce generation, or wait for a jailbreak that allows setting an apnonce.