Do It Your Self
You can download esp8266 flash file from here.
Get Windows standalone executable
After installation; start your device in flash mode. (GPIO-0 is HIGH)
Flash mode for Sonoff 4CH:
Press and hold button 1 – Plug usb to your pc – Wait 3 seconds while holding the button 1
Ready for flashing.
Device will be in demo mode. Try it in demo mode and if you like it get 4 credits
Send an email to info@homehome.app write your device ID and Gmail address, after activation restart your device.