We are looking at the protocol between the device and host PC. With the old source code it's pretty easy to find the loop that handles APDU messages. =[ ❤️ Support ]= → per Video: https://www.patreon.com/join/liveoverflow → per Month: null =[ 🐕 Social ]= → Twitter: https://twitter.com/LiveOverflow/ → Website: https://liveoverflow.com/ → Subreddit: https://www.reddit.com/r/LiveOverflow/ → Facebook: https://www.facebook.com/LiveOverflow/ =[ 📄 P.S. ]= All links with "*" are affiliate links. LiveOverflow / Security Flag GmbH is part of the Amazon Affiliate Partner Programm. #ReverseEngineering #HardwareSecurity