If you’re adding an IMU, LiDAR, or GPS module, the updated MCU firmware will include new driver libraries.
The RKPX3 has a built-in system memory bootloader activated by specific pin states at power-on: rkpx3 mcu update
: Fixes issues such as HVAC (climate control) resetting to "off" every time the car restarts or unresponsiveness in steering wheel buttons. If you’re adding an IMU, LiDAR, or GPS