We have started the review of your app, but we are not able to continue because we need access to a video that demonstrates the current version of your app in use on a physical iOS device, which shows the initial pairing process and entire app workflow with the designated hardware.
Be sure the video you provide shows a physical iOS device and not a simulator.
Next Steps
To help us proceed with the review of your app, provide a link to a demo video in the App Review Information section of App Store Connect, then reply to this message. The demo video must include the entire app workflow, beginning with pairing the iOS device to the hardware.
Make sure you also provide any required demo account information, including passwords, in the App Review Information section for your app in App Store Connect.
Resources
To learn more about providing information to App Store Review in App Store Connect, see App Store Connect Help.