Thank you for the reply @BSTRobin ,
Yes, I tried to read the BMM150 ID but it didn't get. I saw I2C lines of BMM150 connected to BMI270 in scope they were pulled high. But whatever we write to AUX register, we observed that no data on I2C SDA line.
First, you can check whether your schematic diagram is correct and whether the welding is good?
Sendond, run example code again.