I’m in the same situation, and following this thread to see if there’s any way to revive the SCK.
I’ve uploaded new firmware – via web interface as well as manually using the Arduino IDE. It refuses to connect to WiFi.
I have a separate thread on the forum regarding my troubles with SCK from 2014, but figured it’s time to start afresh.
SCK MAC address : 00:06:66:21:8c:0e
EDIT : here is the serial debug
Wifi conection failed!!! Using ssid: Lumetronics and pass: xxxxxxxx
RTC not updated!!!
With no valid time it’s useless to take readings!!
Trying to get valid time…