Can I upgrade my firmware with someone else’s phone?Updated 8 months ago

Yes! You can use almost any Android or iOS device (for instance, an iPad) to update the firmware. 

The entire process usually takes less than five minutes. 

You don’t need to create an account or enter any information. The phone is not permanently associated with your Thermometer or Display and your friend can uninstall the app afterwards.

Later, you can use a different device (as long as it has one of the Combustion apps) later -- if you want to -- to display cook data and interact with your Predictive Set.

Or to do another update. Whatever works.