My response -
New Doc 2017-04-19.pdf (93.7 KB)
It sounds like you are saying our Serial.ino sketch compiles and successfully runs on your Arduino, but the Arduino Serial Monitor does not show any data. - This is correct. Sketch compiles and successfully runs on Arduino.
Can you tell me more about your setup?
Do you have the 3.3V or 5V version of the Arduino Pro Mini? - I am using 5V version of Pro Mini.
How are you supplying power to the MinIMU? - The connections are -
Arduino LSM6 board
RAW - VIN
GND - GND
A4 - SDA
A5 - SCL
Can you post pictures that clearly show your soldered joints and connections? - Attached herewith.