| Device Series | Recommended Tool / Method | Cost | Difficulty | Preserves Code? | | :--- | :--- | :--- | :--- | :--- | | | Memory Clear (CX-Programmer) | Free | Low | No | | CJ1M/CS1G | PLC Unlocker Pro (Third Party) | $150-300 | Medium | Yes | | CJ2M | Brute-force via FINS (OmronCrack) | $50 | High | Yes (50/50) | | NJ/NX | Physical Reset via SD Card | Free | Low | No | | NB HMI | NBDesigner + Hex Editor | Free | Medium | Yes | | NA HMI | SQLite DB extraction | Free | High | Yes |
