Peloton Tread+ Repair DIY Tread has stopped communicating, firmware failed, and safety key issues

An overview of some troubleshooting and repairs for the Peloton Tread+. How to troubleshoot the smart card, speed and incline knobs, as well as the safety key. Links to the tools I used: Trim removal kit: https://amzn.to/3NAykAN Multimeter: https://amzn.to/3Jp0qfI