| Symptom | Likely Cause | Fix | |---------|--------------|-----| | | Secure Boot enabled + unsigned drivers | Disable Secure Boot temporarily, reinstall. | | Device not detected ( ufi-cli scan shows nothing) | USB cable in power‑only mode / missing driver | Use a data‑capable cable, reinstall drivers ( ufi-cli install --components=drivers ). | | Flash aborts with “Signature mismatch” | Wrong or corrupted .sig file | Regenerate the signature with ufi-sign.exe (provided in tools/ ). | | CLI returns exit code 2 | Incorrect command‑line syntax | Run ufi-cli.exe <command> --help . | | GUI crashes on launch | Missing .NET Framework 4.7.2 | Install the framework from Microsoft website or run the GUI installer with the --install-dotnet flag. | | Post‑flash verification fails | Power fluctuation during flash | Ensure stable power, use a UPS or a powered USB hub. | | Rollback image missing | Flash performed with --no‑backup flag | Re‑flash with backup enabled (default). |

Are you looking to deploy this older version for a , or do you need help upgrading to the latest 2026 UFI UFS-Prog edition ? Let me know your current hardware setup so I can provide targeted troubleshooting steps! Share public link

: Integrated the Aria2 download engine to help users with limited or unstable internet connections download large support files (often >1GB) without corruption.

Because ufi-cli.exe returns (0 = success, non‑zero = error) and writes machine‑readable JSON when --json is supplied, it integrates nicely with CI pipelines or custom deployment tools.