Hi jbergstrom66,
Thanks for your inquiry.
Have you updated the latest software for BME688 Development Kit by referring to Flyer(https://www.bosch-sensortec.com/media/boschsensortec/downloads/product_flyer/bst-bme688-fl001.pdf)? If so, you can connect BME688 Development Kit to PC via USB, check the COM printing information when BME688 Development Kit starts, and check if BME688 Development Kit starts normally?
The reference printing information is as follows:
... View more