Pins other than USB may be varied?
| Pin Number |
Pin Name |
Description (may be empty) |
| 1 | FM_ANT | FM radio antenna / Audio ground |
| 2 | MIC2P | Headset microphone signal |
| 3 | TV_OUT or N/A | TV_OUT signal for LG KC-550 and some others |
| 4 | HPH_L | Headset left sound |
| 5 | HPH_R | Headset right sound |
| 6 | USB_DP/ REMOTE_INT | USB+/ Remote control interrupt |
| 7 | USB_DM / REMOTE_ADC | USB-/ Remote control Key ADC |
| 8 | JACK_DETECT | Headset detect (active low) |
| 9 | VBATT | Battery voltage |
| 10 | VBATT | Battery voltage |
| 11 | REMOTE_PWR_ON | Remote power on (active high. 2.0~V) |
| 12 | +5V_PWR | Charger voltage |
| 13 | +5V_PWR | Charger voltage |
| 14 | DSR | |
| 15 | USB_VBUS | Power from USB cable |
| 16 | UART_TXD | Serial out(data from phone) |
| 17 | UART_RXD | Serial In(data to phone) |
| 18 | GND | Power GND |
LG DK-80G USB cable is used for this phones

