sciphone g2 connector

hi, i want to make a cable for the sciphone g2 that provides serial communication and charging with one connector. unfortunately the pictures at [1] aren't clear enough for me. i don't want to kill my phone. actually i count 15 pins in the picture, where mine has only 12. that's weird. i guess that 2 are just for aligning the case, but that still makes 13 vs. 12. i tried to ascii draw the connector from the back (soldering) side. the rounded half of the connector on the upper side. The pins i found described elsewhere on the internet are already marked. -------------------------- ( ) ( ) | ( ) | +-------------------------+ | | | | | | | | | / | | | | | | | | / +-------------------------+/ ^ ^ ^ ^ | | | | | | | +--- GND | | +----- GND | +----------- RX (PC -> Phone) +--------------- TX (Phone -> PC) could someone please mark the pins that have to be connected for charging ? i guess one of the two GND pins is involved. kind regards and thanks for your time -Alex [1] http://en.qi-hardware.com/wiki/Sciphone_Dream_G2