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Case Study: From an App Complaint to a Non-Standard Mortise Project

Case Study · Published 2026-10-06

A smart home integrator in the Caribbean was buying locks for a mix of retail customers and project work. The first complaint was not about the lock hardware at all: the app could only send an unlock request, and the end user expected the lock to open.

The problem

  • The installed version was request-based, so the user pressed the lock before the app would open it.
  • A batch arrived with batteries draining far faster than expected, and a handle return spring missing on one side.
  • A government project had doors already cut for a 60 mm mortise with a non-standard 22 x 200 mm body and 60 mm steel door thickness.
  • A payment split across two invoices caused the local customs broker to hold the shipment.

What we did

The app

We confirmed in writing which versions support active unlock and which are request-based, and rebuilt the affected batch onto the version that unlocks actively from the phone.

The quality problems

  • The battery drain was traced to a board batch. The component supplier was changed and the affected locks were replaced.
  • Missing springs were corrected with replacement parts and a packing check was added for that assembly step.
  • Spare cards and parts were added to a later shipment so the site was not left short.

The project

The 60 mm mortise with a 22 x 200 mm body was engineered to the site measurements and supplied in a stainless version with an installation template. The first article was checked before the run continued.

The customs hold

A compliant invoice that did not carry the payment split was issued, and the battery-containing units were re-routed with their own documentation.

The result

The relationship moved from a retail-scale account to a project account, and the non-standard body became a repeat specification.

Have a non-standard mortise or an app problem?

Send the drawing and the door measurements, or describe the app behaviour you need. We will confirm what is possible before you commit.

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