Before upgrading, answer three questions: what carrier is the lock installed on (luggage, lockers, industrial cabinets, server racks), who will use it (a single user or a large number of rotating users), and whether the existing hole positions and dimensions can be reused. The scenario determines which technical route the smart lock should take and whether existing openings can be reused to reduce modification costs. If buyers can provide photos and dimensions of the existing lock body, it will significantly shorten the evaluation time.

Issues such as the power supply solution (battery life, whether external power can be connected), firmware update methods, and whether integration with existing access control or asset management backends is possible, only surface after the upgrade. Buyers should confirm the API, data formats, and permission management mechanisms with the supplier before prototyping to avoid discovering that the backend cannot be connected after the product arrives. Jintai Industrial's IoT platform supports cloud connectivity and identity verification integration, with actual specifications confirmed on a project basis.

After specifications are confirmed, the OEM/ODM process proceeds in sequence: DFM design evaluation, mold development, prototype verification, testing and certification, and mass production. It is recommended that buyers keep written records and samples at every stage, especially during the testing and certification phase. Although specific certificate numbers and applicable product lines must be confirmed based on actual specifications, the process milestones cannot be skipped. Problems discovered during the prototyping stage cost far less to fix than those found after mass production.