Kenji’s supervisor, Sato-san, leaned over his shoulder. "Why is it communicating on the 5.9 GHz band before the trigger event?"
| Model Series | Support | Required Flash | | :--- | :--- | :--- | | BHT-1700 / 1800 | ✅ Full | 16 MB+ | | BHT-1500 | ⚠️ Limited (no BT fixes) | 8 MB | | BHT-1300 / older | ❌ Not supported | — | DENSO ETSI V4.92
A dedicated section (typically Disc 2) containing service bulletins and repair manuals. Kenji’s supervisor, Sato-san, leaned over his shoulder