@BS Welcome to Microsoft Q&A forum!
I Understand that you have gone through the basic troubleshooting steps.
Flashing white means that the camera does not have a data connection to the host PC. You have mentioned you are using USB 3.0 Is the cable you are using a power+data capable or just power. Some USB-C cables are power only.
From the documentation Flashing white indicator means -> Device is on but doesn't have a USB 3.0 data connection.
Please check the page on USB3 host controller compatibility. Always make sure that you have the latest firmware installed on the device. To get the latest firmware version, use the Azure Kinect Firmware Tool. For more information about how to check your firmware status, see Check device firmware version. Also, try Reset Azure Kinect DK
Do let us know if that helps.
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