link - confirmed, working with mini breakout board as well just press the power button >4sec & <7sec sec and you will find a hotspot with the name you have given your Edison during setup, use the given root pwd to get a connection. My Edison can now be reached e.g. from smartphone via SSH 192.168.42.1<your Edison IP address> ATTENTION: will stay in AP mode after reboot!
You want manuelly to switch back from AP mode in Client mode of Wifi? simply run configure_edison --setup again