1. When connecting Droidcam on the OnePlus 12 to the Droidcam Client on the PC, the Droidcam Client remained blank. The reason should be that it consistently failed to detect the corresponding phone device. See Figure 1.
2. Even when connected using a USB cable, it still did not work. After ensuring the USB cable was functioning properly and trying a different cable, it finally worked. See Figure 2.
3. The cable used previously was a silver one that supported multiple connector types. The one that worked properly later was a white USB cable. See Figure 3.
4. Another possible reason is 360 Total Security. After booting up, you must exit it first, and then launch Droidcam Client. Otherwise, it cannot find the corresponding phone device.
5. In the default USB configuration, you may need to try the options one by one. The final choice was USB tethering. See Figure 4.
