*#06# returns IMEI number and Software Version (not HC600).
These are the pinouts for the HC600 they are the same as the 800/1000 I beleive.
1 3 5 7 9 11 13 15
I I I I I I I I
O O 17
I I I I I I I I
2 4 6 8 10 12 14 16
1 Vbat_ext 9 SDA_E
2 EMMI_PAE 10 GND
3 Mic 11 GND
4 EMMI_OPE 12 DC_IN (charge)
5 GND 13 Speaker
6 EXT_EMET 14 MARCHE
7 SCL_E 15 DC_IN (charge)
8 EXT_RECDIT 16 GND
17 Antenna+internal switch (int/ext)