Hello, Kangho007.
Thank you for posting in the Intel Community Support forums.
We have a specialized community for Intel® RealSense™ products, I would move this thread for you, but it is on a separate planform, meaning that you must create a new topic there, please see the links below, I apologize for the inconvenience.
Information and support: https://support.intelrealsense.com/hc/en-us
Community support forum: https://support.intelrealsense.com/hc/en-us/community/topics
This thread will be closed right now, but if we can help you with anything else in the future, you can always contact Intel by opening a new thread or using any of the other support methods.
I hope you get the answer as soon as possible.
Best regards,
Bruce C.
Intel Customer Support Technician
