You can follow the steps below to make the replacement:
Step 1: Debugging new firmware version:
IoT platform - Product - Development - Find the corresponding product - Click “Develop” (if your product has been developed, click “Details") - In the "Hardware development" step, find and click “Replace version" in the firmware info - Find the latest firmware version and click "Verify" - Click "OTA Firmware Updates" and follow the instructions on the page for verification.
Step 2: Change the firmware version:
After verification, go back to the "Hardware development" step of the product, find and click “Replace version" in the firmware info - Find the latest firmware version, click "Verified", click “Select Version", and the operation is completed.