Thanks so much for reaching out to support! To reset your matrix, you can choose the conversation bubble in the top right corner of the app. A few options will pop up - choose the one that says "My Matrix Isn't Working" or something along those lines. Follow the instructions that the app gives you - it will ask that you plug your bike into the charger. The bike will go into sleep mode, and once you wake it up again the matrix should be working. Again, you'll want to follow the instructions on the app to make sure you take all of the necessary steps. Please let me know how this goes for you!