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Install Nuki in less than 3 minutes
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Install Nuki in less than 3 minutes

Nuki News 17.02.2021 | Admin

We at Nuki have made it our mission to simplify your life. That’s why we steer clear of complicated installation instructions and processes. We are proud to say the installation and smartphone pairing for our Nuki Smart Lock only take 3 minutes.

We recommend you carry out a installation check before buying. This way you can ensure your door lock is compatible with the Nuki Smart Lock.

How exactly does the installation process work?

To mount the Nuki Smart Lock, you don’t need any additional tools or outside assistance. All you need is:

  • your smartphone
  • the supplied Allen key
  • the mounting plates (depending on your door type, you can use either the adhesive or the screw-fixed plate)
  • the Nuki Smart Lock itself
  • the supplied door sensor
  • your key

Before I talk at length about how the installation process works, check out our video:

The Nuki Smart Lock is mounted on your door from the inside above your existing cylinder and is ready to go in just three minutes. There are two installation options, depending on the type of door you have:

Mounting with a screw-fixed plate or an adhesive plate?

Two metal plates are included with delivery, only one of which you will need for installation. Which plate fits on your door depends on how far your cylinder protrudes. If it protrudes more than 3mm from your door, you need the screw-fixed plate (mounting plate A). It works as follows:

  1. Place the screw-fixed plate over your door lock (on the inside of the door!) and tighten the three screws with the Allen key provided.
    —> Carefully fix the set screws in place, without applying too much force so as not to damage the lock cylinder.
  2. Then put your key in the lock.
  3. Now place the Nuki Smart Lock on the mounting plate, making sure to first insert the key head into the long slot in the round upper part on the back of the Smart Lock.
  4. By applying light pressure, your Smart Lock should audibly click into place, then insert the battery compartment on the underside, and your electronic door lock is ready to use.

If you have less than 3mm of overhang, you can attach the Nuki Smart Lock with the adhesive plate (mounting plate B).
This version is even simpler:

  1. First, clean your lock with an alcohol-based solution (e.g. nail polish remover).
  2. Now peel off the protective film from the plate and stick it to the door.

—> Both installation variants can be completely removed from your door without leaving a trace, making them also ideal for renters.

Pairing the Nuki Smart Lock with the Nuki app on your smartphone

Once you’ve installed your Nuki Smart Lock on the door, it’s time to download the free Nuki app from the Google Play Store or the Apple App Store.

Your smartphone must meet the following requirements:

  • Bluetooth 4.0 or higher
  • Operating system: Android 5.0 or newer or from iOS 11 (iPhone 4S or newer)

Simply follow the step-by-step instructions in the Nuki app, which will guide you through all the steps of the installation and setup process. To pair the Nuki Smart Lock with your smartphone, press and hold the large button on the top of the Smart Lock for a few seconds. This will put the Smart Lock into “pairing mode” (pairing only takes place within the Nuki app). You will know this mode is active because the entire light ring remains lit. You can then search for a new Smart Lock in the Nuki app on your smartphone, name it and start using it right away. You will be guided step by step through the setup in the app. If something is unclear, find out more in our Support area or contact our customer support team.

How is the door sensor installed and used? – attach the nuki magnet


Since launching the Nuki Smart Lock 2.0, we have also included a small, rectangular, black magnet with delivery. This door sensor makes it possible to display not only the status of the locking cylinder (unlocked or locked), but also the status of the door itself (open or closed). If the Nuki Smart Lock receives a locking command remotely, and the door sensor recognises the door is open, an error message is sent via push notification in the app.

The installation process is very simple, and you will be guided through it step by step via the Nuki app. The door sensor is glued directly onto the door frame from the inside. When doing so, you should note the following:

  • The door sensor should be in line with the lower edge of the Smart Lock.
  • The distance between the Smart Lock and the door sensor should be as small as possible.
  • It is important to then calibrate the door sensor – once with the door closed, once with the door open, and once with the door ajar.

—> If your door opens outwards, it’s best to place the door sensor on the inner frame of the door, i.e. at a 90° angle to the Smart Lock. However, if your door opens inwards, it’s better to attach the door sensor parallel to the Smart Lock on the wall side of the door frame for optimum position recognition. You can find more information in our Support section.

You have a knob on the inner side of your door?

knob cylinder adaptersknob cylinder adapters

The Nuki Smart Lock is placed over the key in the door lock from the inside. The locking process itself is very straightforward. The small motor in the upper part of the Smart Lock simply turns the key that is permanently inserted in the door lock. But there are also doors that have a turning knob on the interior side, meaning a key cannot be inserted from the inside.
We have come up with a solution for this very scenario and developed small knob cylinder adapters that are compatible with the most common brands. You only need one of these colourful adapters, which acts as a connecting piece and performs the rotation required for the locking process.
The installation itself depends heavily on the relevant cylinder brand, but generally works like this:

  • The knob must be removed according to the manufacturer’s instructions.
  • Depending on the cylinder brand, the appropriate adapter is then attached and fixed in place.


When you place your order in the Nuki Online Shop, you have the option of ordering the right knob cylinder adapter for your needs, free of charge. To do this, simply tick the box “I have a rotating knob on the inside of my door and would like to order a free adapter for my Smart Lock 2.0” and choose the relevant cylinder manufacturer. If you forgot to do this when placing your order or if you bought your Nuki Smart Lock somewhere else, you can order the adapter from our Shop later free of charge.

Your door lock is not compatible?

We assume you’ve carried out our installation check before placing your order. The Nuki Smart Lock fits most standard lock cylinders, but there are a few cases where Nuki is not compatible or we don’t recommend using it. It’s worth noting that the Nuki Smart Lock can only function fully if the turning movement of the inner key is sufficient for the locking process. This means a Smart Lock will not work if any additional manual action has to be taken before the door can be locked. For example, there are doors with handles that have to be pushed upwards to lock (often on patio doors) or the entire door has to be pushed in or pulled towards you (mostly on older doors). Since the Nuki Smart Lock only turns the inner key, door locks of this kind are of course not compatible.

What does the emergency function mean for locking cylinders?

The most common case where we do not recommend using Nuki involves the lack of an emergency function – if you have your key on the inside, you should still be able to unlock it from the outside. If this is not the case, you can use a Nuki Smart Lock, but then you will no longer be able to use your key to unlock it from the outside (which is always important as a backup). So, in these cases, we recommend replacing your lock cylinder and upgrading to one that can be locked on both sides and lets the inner and outer key be moved synchronously. (If the cylinder does not have this function, the Smart Lock will lose its position every time it is manually locked and must be recalibrated.)

Here’s how to change the cylinder

Despite what some would expect, changing a cylinder is not particularly costly or particularly difficult, meaning you can take care of it yourself.
or you can order a new, high-quality locking cylinder from our Online Shop and install it yourself.

We’ll show you how to do this in this short video:


Of course, you can also hire a trusted locksmith (you can find a Nuki Pro sales partner in your area using our Store Locator).

You need to know these dimensions in order to install a new cylinder

—> When selecting a locking cylinder, two dimensions are taken into account – the inner dimension and the outer dimension. This is the distance from the bolt in the middle to the outer edge. Incidentally, these two dimensions are interchangeable, i.e. if you need 50mm/30mm, for example, you can also use 30/50, since the lock cylinder can be rotated. You can find out more here.

How can I remove the Nuki Smart Lock?

The Nuki Smart Lock can be removed without leaving a trace. This is an important factor, especially for rental properties. Unlike many other permanent smart home systems, Nuki can be easily dismantled and easily reinstalled in another location.

Remove Smart Lock

It can be uninstalled as follows:

  • First, you have to remove the battery compartment on the underside of the Nuki Smart Lock. To do this, press the small lever on the lower cover of the battery compartment in the direction of the arrow.
  • Now carefully pull out the battery compartment.
  • A yellow latch will now be visible in the opening of the battery compartment. When you press the coloured latch, the Smart Lock’s anchorage will loosen from the mounting plate.
  • Now carefully remove the Smart Lock from the mounting plate. You can reinsert the battery compartment into the Smart Lock.
  • If you have used a screw-fixed plate on your door, it is enough to simply loosen the 3 small screws around the inner circle. With the adhesive plate, you can simply pull the plate off again. You may need to use some nail polish remover to help you with this.

If the adhesive plate no longer adheres as effectively, you can always buy a new adhesive plate in our Shop.

If you need a screw-fixed plate for the door in your new apartment or house and you can no longer find the one that was supplied, you can re-order it in our Shop in the spare parts section.

Our motto is very clear: Smart – Simple – Secure, because it is important to us that our products are easy to install for everyone, not just the tech-savvy. That said, we are of course always there for you, if anything goes wrong.
We hope you enjoy your Nuki Smart Lock!

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