First batch of L12s (purchased before 13 Aug 24) advised

For the initial batch including maybe 10 to 15 L12s, there may still be the old LD2412 firmware (V1.14), please use the HLKRadarTool APP to update the firmware.

The new version brings light function support, as well as better interference immunity, and a multi-resolution mode.

Here is a video demonstration of how to update your LD2412's firmware.