| Problem | Solution | |--------|----------| | Device not recognized | Try different USB port, cable, or restart. | | Buttons not working | Open Speech Control Panel → Buttons → Restore defaults. | | Microphone no input | Check Windows sound settings → Input device = Philips SpeechMike. | | Driver signature error (Win 10/11) | Disable driver signature enforcement temporarily (advanced startup). | | Serial port model (LFH-3200 etc.) | Needs legacy RS-232 driver – contact support; may not work on modern PCs without USB-serial adapter with FTDI chip. |
Different models use (e.g., Air needs Bluetooth & dictation drivers; Classic may need legacy serial drivers).