Several factors can trigger this missing loader notification:

: A "loader failed" error can also be caused by a bad driver connection. Ensure your phone is in PWNDFU mode (using Gaster or WinRa1n) and that the Usbdk driver is properly installed and filtered. Common Recovery Methods

Open your or third-party antivirus interface. Add the entire C:\UnlockTool folder to the Exclusion List .

Navigate to the official server at the UnlockTool File Directory . Locate the section.

: The specific boot files for your iOS version (often iOS 15.x for iPhone 7) aren't downloaded into the UnlockTool folder .

For the iPhone 7 (2N61AP), the Intel modem is notoriously sensitive. Only a loader compiled specifically for the ICE17 baseband firmware will work. Low-quality loaders often attempt to use the D101AP (Qualcomm) loader, which leads to the "not found" error or worse—a no-service condition.