1. Extract the downloaded firmware package.
2. Open Home Assistant and enter the ESPHome HTTP web interface for the ZLX-2450 Radar.
3. Scroll to the bottom of the page.
4. Upload the provided BIN firmware file to start the OTA update.
5. Make sure the network connection is stable during the entire update process.
6. For best reliability, it is recommended to perform the update from a computer connected to the network via a wired LAN connection.
7. Do not disconnect power or interrupt the network connection while the firmware is being updated.
8. After the update is completed, wait until the device restarts and the new Wi-Fi hotspot appears.
9. Once the new hotspot appears, you can continue with the device setup