A software bug that caused Nest's smart thermostat to stop working has left many users both cold and angry. Some of those affected took to Nest's own forum and social media to vent their anger about the problem. Nest said that it was aware of the issue and that it had been fixed for "99.5%" of users. It recommended that, for those still experiencing problems "performing a manual reset should help". It also published a nine-step fix. "We are aware of a software bug impacting some Nest Thermostat owners. In some cases, this may cause the device to respond slowly...