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Smart Lock Warranty and How a Claim Runs

Buyer Guide · Published 2026-10-14

A warranty is only useful if the process behind it works. The question is not how long the warranty runs, but what happens in the week after a problem is reported, and whether the answer is a cause or an apology.

What the warranty covers

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Electronic parts12 months from the bill of lading date
ScopeConfirmed on the order, because it varies by model and by part
RemedyReplacement parts, a credit, or a swap in the next shipment
Freight on a covered replacementCarried by us

What it does not cover

  • Damage from incorrect installation or a door that does not close correctly
  • Water ingress where the seal was refitted incorrectly after a battery change
  • Force majeure, including lightning, flood and power surges
  • Normal wear on a consumable part, such as batteries or a worn gasket
  • A product modified after delivery without written approval

How a batch problem is judged

A single failure and a batch problem are handled differently, and the difference is the batch record. Batch numbers are recorded at production so a claim can be traced to a board batch, a spring lot or a packing shift.

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Single unitDiagnosed from the returned part or from a description and a video
A pattern across unitsBatch number checked against the production record
Electronics batchTraced to the board batch and the firmware version
Mechanical batchTraced to the spring or latch lot
Packing batchTraced to the packing shift, where the fault is damage in transit

What evidence a claim needs

  1. The model and the batch number, which is on the carton and the unit
  2. How many units are affected, against how many were shipped
  3. What the failure looks like, with a photograph and a short video
  4. When it started, and whether anything changed beforehand
  5. What the installation looks like, where the failure is mechanical

A video of the fault is worth more than a paragraph describing it, and it is usually the fastest route to a root-cause answer.

The three remedies

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Replacement partsFastest where the fault is a component, such as a latch or a board
CreditWhere the customer can repair locally or the units are already sold
Swap in the next shipmentEfficient where a repeat order is already planned

Why returning the goods is usually the wrong answer

Shipping defective units back to China usually costs more than the units are worth, and it takes weeks during which the customer has no resolution. A returned sample is worth it where the cause is genuinely unclear.

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What is worth returningOne or two units, for diagnosis of an unclear cause
What is notA whole batch, where the freight exceeds the value
What to do insteadParts, a credit, or a swap, with the batch traced from records
What we need either wayThe batch number and the affected quantity

Ask for the batch record policy before you order, not after a failure. A supplier who records batches can answer a claim; one who does not can only apologise.

Buyer Questions

Three questions this guide usually raises.

On this topic

How long is the warranty?

12 months on electronic parts from the bill of lading date, with the applicable scope confirmed on the order because it varies by model and part.

Do we have to ship defective units back?

Usually not. Freight back to China often exceeds the value, so a returned sample is only worth it where the cause is genuinely unclear.

What if a whole batch is affected?

Send the batch number and the affected quantity. The batch is traced to the stage that produced it, and the remedy follows the cause.

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