Ericsson Chatboard to GP32

Ericsson Chatboard to GP32

My chatboard model is CHA-01.
Here is a huge picture how it is wired internally.

And this is how pins are wired to EXT cable:

And some l337 ascii graphics illustrating the EXT connector rear view. 

This should help soldering generally.

Note that the color codes match to those in Gamepark IO-port PDFs.