Installing and Commissioning a Smart Lock

Product Knowledge · Published 2026-10-15

Most installation problems are decided before the first screw goes in, by a measurement that was assumed rather than taken. These are the steps in the order they have to happen, plus what to check afterwards.

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Step 1 to 3: measure, mark, fit the body

1. Measure the door	Thickness, backset and handing, at the lock position	Outside 35-55 mm needs a longer fixing or a spacer
2. Mark the openings	Use the supplied cut-out template, not a tape measure	Template error is the most expensive mistake in this trade
3. Fit the body	Set the mortise body into the edge, then fix it	The bolt must travel freely and must not foul the frame

The template exists so that the openings are marked from the product rather than from a dimension someone read out. Lay it flat, align the edge line with the door edge, and mark through it.

Step 4 to 7: panels, power, test, strike

4. Fit the panels	Front and back panels aligned, data cable connected	Check the cable direction; do not bend it sharply
5. Fit the batteries	Alkaline cells, all new, all the same type	Never mix old and new, and do not use rechargeable cells
6. Commission and test	Enrol an administrator, test every entry method	Enrol at least two fingers per person before the installer leaves
7. Fit the strike plate	Fixed in the frame where the bolt lands	The gap between bolt and strike should be 2 mm or less

Commissioning: pairing the lock to the app

Install the app the model uses, on iOS 12 or Android 8 and above
Register an account and add a device from the app
Put the lock into pairing mode as the manual describes, usually a long press
Confirm the phone is on a 2.4GHz network - 5GHz is not supported
Enter the network credentials and wait for pairing to finish, around 30 seconds
Rename the lock, then set the temporary-code and auto-lock options you need

On a Bluetooth-only lock the app pairs directly and no network is involved. On a Wi-Fi lock, the 2.4GHz requirement is the step that most often fails, because many routers default to 5GHz or to a combined network name.

The five maintenance items

Panel	Monthly	Wipe with a soft dry cloth	No alcohol or solvent cleaners
Bolt and latch	Every six months	A little graphite powder	Never an oil-based lubricant, which collects dust
Batteries	Annually or on the low-battery warning	Replace all cells together	Alkaline, all the same brand and age
Water seal	Annually on outdoor units	Check the gasket for hardening or distortion	Replace it yearly where the unit is outdoors
Firmware	When an update is offered	Update through the app	Confirm the battery is above 50 percent before updating

What to hand over to the end user

The mechanical keys, and a note of where the spare is kept
The administrator code and the enrolment procedure, in writing
The emergency charge point, demonstrated rather than described
The model, the firmware version and the batch number, recorded
A note of the low-battery warning behaviour they will see

Test the emergency charge point and the mechanical key on site, not just their presence in the box. They are the two things that matter when the battery is flat and somebody is locked out.

Buyer Questions

Three questions this guide usually raises.

On this topic

Can I install it on a door that is already cut?

Yes, if the existing mortise and backset match the body. Measure the case length and height, the backset and the door thickness, and confirm the body code before ordering.

Why will the lock not connect to Wi-Fi?

Almost always because the network is 5GHz or a combined SSID. The lock pairs on a 2.4GHz network, so separate the bands or enable a 2.4GHz guest network.

How often should the batteries be changed?

Replace them together when the low-battery warning appears, or annually if the lock is lightly used. Use alkaline cells, all the same type and age.