Resources / FAQ
A clearer starting point.
Answers to common questions about product selection, device integration and development.
Resources for your device
FCV4288LD
Mortise smart lock with door viewer
11 answers for FCV4288LD
Questions about FCV4288LD.
Which app setup applies to FCV4288LD?
Use the Tuya WiFi setup reference for the FCV4288LD Door viewer configuration. Confirm the supplied camera, display, network and enabled app functions against the matching manual.
Which FCV4288LD configuration does its manual cover?
The approved reference covers the Door viewer configuration. Match the camera, interior display, lock assembly and firmware to that reference before installation or setup.
What door details does FCV4288LD need?
Match the FCV4288LD Door viewer assembly and lock body to the door measurements, opening direction and installation reference.
What should I share when choosing a device?
Tell us which credentials people will use, where the device will be installed, which interfaces are required and what should happen in the software workflow. A mounting drawing, host-equipment description or simple process diagram helps us identify the questions that must be confirmed before recommending a configuration.
Does every configuration include the same features?
No. Credential modules, interfaces, mounting parts, network options and software can vary within the same product family. Confirm the exact model and selected options in writing before designing an enclosure, cable set or integration around it.
How can I get a manual or datasheet?
Find available documents by model in the download center. If the manual, specification or installation drawing you need is not listed, send the model and configuration to our team so we can identify the matching document.
How should we evaluate a product for our project?
Start with the credential, mounting, interfaces and software flow that matter to the final installation. Confirm the sample configuration in writing, test it in the intended environment and record any differences before planning a larger rollout.
What should I include in a technical support request?
Include the overseas product model, firmware or software version, connection method and a short sequence that reproduces the issue. Screenshots, indicator behavior and relevant logs help; do not send passwords, access credentials or personal biometric data.
What should we check if a device repeatedly restarts?
Compare the power supply voltage, current capacity and wiring with the specification for the selected configuration. If the problem continues, record whether it happens at startup or during a particular action and send the model, firmware and observations to technical support.
Can we select a lock from its front design alone?
No. Confirm door material, thickness, handedness, existing holes, backset and lock-body requirements before selecting a configuration. Photographs of both sides and the door edge, together with measurements, are more useful than a front view alone.
What information is useful for a smart lock project?
Tell us who issues access, which credentials are planned, how permissions are updated, the expected offline behavior and how the door is prepared. Credential, gateway and management capabilities depend on the selected configuration and must be confirmed together.