| Error Message | Cause | Solution | | :--- | :--- | :--- | | “Account not authorized” | Your login lacks EDL permission | Purchase a token or use a paid service | | “Sahara communication failed” | Driver issue or bad cable | Reinstall Qualcomm drivers, try USB 2.0 port | | “Anti-rollback check failed” | Flashing older ROM than current | Download a newer firmware version | | “Param preload failed” | Corrupted firmware file | Re-download the official ROM | | “Device not in EDL mode” | Wrong button combo or damaged test point | Use an EDL cable or check motherboard |
To install the Xiaomi Authorized Flash Tool 6.1.1, follow these steps: Xiaomi Authorized Flash Tool 6.1.1 Download