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‘Reverse Engineering Furby Connect’s Bluetooth Protocol and Update Format’ #WarrantyVoided

Thanks to reader Mike for letting us know about GitHub user Jeija’s Bluefluff repo, which you can get a glimpse of it in action in the first video below.

With its Bluetooth Connection, Furby Connect is updated frequently with new surprises, like songs. When the antenna glows, this means Furby has something new to show you in the Furby Connect World app. Furby loves to share kid-friendly videos.

First things first: My Furby Connect “Dee-Koh” is safe and has not been harmed in the making of this. There is no need for physical access to the Furby in order to perform these kinds of hacks. This projects aims to reverse engineer / “hack” Furby Connect’s Bluetooth Low Energy protocol, graphics and audio format and eventually find a way to execute own code on Furby.

What I have achieved so far

  • Understand large parts of Furby’s BLE communication protocol
  • Open a secret debug menu in Furby’s LCD eyes
  • Control Furby’s actions, antenna color and LCD backlight
  • Control Furby’s emotions by setting his hungryness, tiredness, wellness etc. levels.
  • Get information on Furby’s sensor states including the antenna joystick, tickle / pet sensors and accelerometer
  • Update Furby with the official update “DLC” files from Hasbro or with my modified versions of those
  • Insert own audio content into DLC files

Read more.

Here’a video demonstrating the fluff code:

And here’s our own 2016 Furby teardown:


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