Installing the Nexkey Core - Mortise Cylinder

IMPORTANT NOTE

To prevent post-installation delays, the Nexkey system must be fully commissioned before installing the hardware.  Please refer to this walkthrough demonstrating how to commission a new system via Nexkey’s Reseller Portal.

Silver smart key cylinder lock with Nexkey branding, isolated on white background.

Kit includes:

  • Nexkey Mortise Cylinder - comes with an Adams Rite installed

  • Standard Yale cam

  • T6 Screwdriver

  • Battery

  • Screwdriver

  • O-ring for handle(for waterproofing)

What to bring to installation (not included):

Hand tools for disassembly of lock

Any additional replacement cams

Smartphone (Android or iPhone)

Set of six Craftsman screwdrivers with blue and red handles, including flathead and Phillips types.
Mortise and rim accessory kit with various metal parts in a yellow plastic box with labeled compartments
Smartphone screen showing an unlocked main entrance via a remote access app. The app displays "Main Entrance" with a checkmark indicating it's unlocked. The status is "Online."

Mortise Installation Instructions

Nexkey-Core-mortise.jpg

Before getting started: Please be aware that our mortise handle is designed to free-spin between the 8 and 4 o'clock positions. If you need a more restricted turn range, we recommend watching this video, which explains how to adjust the Core housing orientation.. When installing outdoors, be sure to install provided O-rings to prevent water incursion.

Remove Mechanical Mortise Cylinder - Remove the face plate of the mortise lockset and loosen the set screw that secures the mortise cylinder. Unthread the existing mortise cylinder until fully removed.

Prepare Nexkey Core - Confirm that the appropriate cam is installed on the Nexkey mortise cylinder. If applicable, reuse the security collar on the Nexkey mortise cylinder.

Install Nexkey Core into Mortise Lockset Thread the Nexkey mortise cylinder into the mortise lockset. Tighten the set screw to lock manufactures specs. Secure the face plate of the mortise lockset with the screws.

Unlocking the Nexkey Core

Step 1

Open Nexkey App, tap the front of the Core , and It will start to blink blue.

Step 2

Once the Core LED turns solid blue, then you can twist as you would a key. The resistance and turn will be the same as with the lock’s original key.

What does the LEDs mean?

Slow Blink: Device is attempting to connect to the Nexkey app

Fast Blink: Device found, Authentication in process

Solid LED: Core unlocked

Solid LED for longer than 10 seconds: Device needs to be power cycled by removing and reinserting the battery.

Testing Nexkey Core

The Core should not change the function of the lock. The lock should operate in the same manner as it did with a key.

Step 1

Keeping the door open, open the app and tap the front of the Core. The LED will start to blink, when it turns solid you should be able to rotate the Core and unlock the door.

Step 2

Once you have gained confidence in the lock operation, close and lock the door. Test the Core.

Step 3

You may be able to turn the Core but the door should not unlock when the LED is off

Update Last Battery Change Setting in the Nexkey App

By performing this step, Nexkey will send a email when it's time to replace the battery again.

Step 1. Select Keys tab

Step 2. Select the lock you just changed the battery in

Step 3. Select Settings and scroll down to the bottom

Step 4. Select Last Battery Change

Step 5. Select date you installed the new battery

A smartphone screen displaying a "Keys" settings menu with options like Firmware Update and Time Zone. A calendar pop-up for "Last Battery Change" shows November 2023, with November 20 selected. "Cancel" and "Save" buttons are visible.

  • You may have turned the Core prematurely which locks the Core as a safety feature. Reboot the Nexkey app, tap the Core again, and wait for the checkmark before you turn to open the door.

  • The battery can be replaced from directly from the front side of the lock.

  • Power cycle the Core by removing the battery for 20 seconds and reinstalling.

Troubleshooting