How to connect with MIB J5 via Serial UART TTL

Connecting with VAG #MIB unit J5 processor over #UART #TTL Serial port for diagnostics, recovery, filesystem access, and patching. Which pins to use, how to set up PuTTY serial monitor, how does an example communication look like. Depending on your unit type, tier, and firmware version, you will have different options for further debug and modifications. To run your MIB unit on bench, you will need 12V power connected to the quadlock from power source with at least 3A. Pinout should be the same for all vendors (Harman, Technisat, Preh, Delphi, Pananosic, Aptiv, LG) and brands (Audi, VW, Seat, Skoda, Porsche...). 🛒 CH340 Serial UART TTL to USB adapter: 📺 Running MIB on bench: 🔗 PuTTY: ~sgtatham/putty/ 0:00 UART serial communication with MIB 0:20 12V power supply to quadlock 0:55 Serial Rx and Tx, ground to MIB J5 1:20 CH340 Serial to USB adapter 2:20 logic levels required 3:00 COM port setting in PuTTY 4:30 Starting the connection ✅ MIB Helper is part of the official mr-fix network. ✅ Visit or for more!