please run the following commands
- enable passthrough mode command (2c-01) with data 01
- LED control command (0a-02) with data FF01
- Are the 4 LEDs on? if not, the LED(s) is(are) broken
- Buzzer control command (0b-01) with data 03
- Are your hearing 3 short beeps? if not, the buzzer is broken.
- disable passthrough mode command (2c-01) with data 00