| Error Message | Likely Cause | Solution | | :--- | :--- | :--- | | "Network Error" | Honestech servers down | Switch to Offline activation or third-party software (OBS). | | "Hardware mismatch" | You changed USB ports (Windows generates a new device ID per port) | Plug into the exact USB port used during installation. | | "Key blocked" | Key was for TVR 24, not TVR 25 | Find a key starting with TVR25- | | "Checksum fail" | Typo; The "link" between digits is wrong | Ensure format is XXXXX-XXXXX-XXXXX-XXXXX (Groups of 5). |

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