One of my Sonoff Dual didn't switched on today morning. It was double blinking. I couldn't solve by restart, etc., so I pushed the reset button to make the setup process again. As I connected with my phone on to the Sonoff's "ITEAD_xxx" SSID, I immediately noticed the network is secured. WTF???? On the next step the device asked the password. Of course I don't know any password.
Is there anyone who could solve it?