Hi my thermostat is blinking green light and it's completely dead out of sudden. Tried to charge via USB but still not responding. Look at Internet they say software update is stuck and the customer service is not that much helpful. My concern is if this is a software glicth then either they have to fix and not ask me to buy new one. (just annoying how can they run away from the responsibility of of due customer care)
I have a similar situation with a new Nest Learning thermostat. It was showing a low battery, so I assumed it was the lack of a C-wire and USB charged overnight with a cord and charger that I'm certain works. The unit blinks green whenever plugged in to the USB charger and never stops blinking until unplugged. It does not blink green when plugged into the base, but then the battery remains low because of the c-wire issue. What's the best thing for me to do. What is the correct contact for a possible replacement?