How does BuddySIM work? BuddyGuard August 18, 2017 13:56 Updated BuddySIM is the name of our 4G LTE back-up > Add-on, which can be activated and de-activated on a monthly basis. It takes over the WiFi connection in case of a power- or internet outage. Related articles How can I make sure FLARE remains active while I am on vacation? What is BuddyReact? I want to place my FLARE elsewhere, what should I do? How does the Secret Phrase work?