After the firmware development is completed, the firmware can be uploaded to the platform, and then the module can be ordered directly. For orders over 100 pieces, Tuya will directly burn the uploaded firmware and mail it to the developer. The method for uploading firmware can be referred to in the document: Manage Firmware Note:
1. When uploading firmware, the tested UUID and key in the code should be masked. Only after masking will the upper computer authorization proceed.
2. After uploading, it is recommended that developers first apply for a free "production certificate" for testing. Confirm that there are no errors before ordering the module. If not tested, there may be issues with the firmware that prevent the factory from completing the burning authorization normally.