My Oak seemed to be connected properly to the Particle Cloud, since I could see the device on the Particle Dashboard, so I attempted the Arduino tutorial (I'm running the Arduino IDE ver 1.6.

. During the flashing process the IDE told me that the flashing failed, and now the Oak doesn't respond. The PWR LED is lit, but the P1 LED isn't flashing any more. I also can't see the device's SSID, so I can't reflash the firmware.
Any ideas? I guess I may have to buy a USB-serial converter and try to reflash via serial connection, but I'd like to avoid that. Disconnecting and reconnecting power have no effect.