DK-42670-P Error -4 when used as breakout board

Hello,

I am trying to connect an Arduino Mega 2560 to a DK-42670-P to read the sensor data using SPI.
Therefore I do not need the Main MCU and debug features of the devkit, I basically just want to use the devkit as a breakout board to connect the sensor to the arduino.

I have connected the 4 SPI wires according to the pin documentation of the boards. I have used the J4 pin which are designated for the SPI interface.

Then I just have copied the example code you provided on github:
https://github.com/tdk-invn-oss/motion.arduino.ICM42670P/tree/main/examples/Polling_SPI

When running the program i get an error -4 which is some kind of timeout according to the code commentary.

What do I have to do to access the sensor on the kit via SPI using the J4 pins?

Thanks for helping