How to perform a hard-reset of Bobbie?

In some cases you might need to perform a hard-reset of your Bobbie, for example when you want to change the Wi-Fi Bobbie is using. Here’s how to do this:

Press Bobbie’s Button and hold it for 10 seconds.
The light of the button will turn purple for a few seconds, then it will stop. 
The reset is completed when the light turns on again in yellow - this will mean that Bobbie is ready to be configured.