I updated my firmware to 0.70, and now get no WiFi. When I power it up, I get a solid video (green) LED, a slow (@ 1 sec) blinking WiFi (blue) LED, and a slow (@ 2 sec) blinking GPS (orange) LED. I updated from V0.56 if I recall correctly, but cannot locate that version to reinstall. I just bought two units, and both worked fine when I tested them. they are slightly different versions; the one with this issue has plastic power and GPS connectors, and a plate with screws over the ports. The second one has a rubber cover over the plates, and metal connectors.