Connector pinout: LG KU990 LG GB220, GC900 (Viewty Smart), KC550 (Orsay), KC780, KC910i (Renoir Refresh) KC910 (Renoir), KE850 (Prada), KE970 (Shine), KF300, KF310 KF510, KF600 (Venus), KF700, KF750 (Secret), KF757 (Secret), KF900 (Prada2), KG800, KM380, KM900 (Are pinout
pin | name | direction | description | color | 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 | | Trace TX data(Debug) | | 16 | UART_TXD | | Trace RX data(Debug) | | 17 | UART_RXD | | Serial In | | 18 | GND | | Power GND | |
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