Pop-port: 

(left) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 (right) 
Screen facing up 

1 Charge (V Charge) 
2 GND (Charge GND) 
3 ACI (ACI - Insertion & removal detection) 
4 VOUT (DC out) 
5 NC (Not connected) 
6 FBUS RX 
7 FBUS TX 
8 GND (Data GND) 
9 XMIC N (Audio in - Ext. Mic input) 
10 XMIC P (Audio in - Ext. Mic input) 
11 HSEAR N (Audio out - Ext. Audio out - left) 
12 HSEAR P (Audio out - Ext. Audio out - left) 
13 HSEAR R N (Audio out - Ext. audio out - right) 
14 HSEAR R P (Audio out - Ext. audio out - right)