Unable to connect Smart Lock Ultra (5.9.4) with Apple HomeKit

Hello,

I’m having trouble connecting my Smart Lock Ultra to Apple Home.

After scanning the QR code, Apple Home asks me to configure the lock and select its home location. After a short waiting period, I’m prompted to add a “non-certified device.”

When I confirm this, Apple Home attempts to add the device, but the process eventually times out.

I previously had a Smart Lock Ultra successfully connected to Apple Home via Matter/Thread. However, I disabled Matter some time ago because I wasn’t using it. Now I’m trying to add the Smart Lock Ultra again so that I can use the Keypad 2 with NFC, but it suddenly no longer works.

My setup:

  • Matter/Thread Controller: Apple TV 4K (3rd generation, 128 GB)
  • iOS: Issue occurs with iOS 27 as well as the previous version, iOS 26.6
  • Other Thread devices are connected to and working successfully through the same Thread controller.

Could you please advise what might be causing this issue and how I can get the Smart Lock Ultra connected to Apple Home again?

Thank you!

1 Like

Do you try to do the onboarding via the Nuki app or the Apple Home app?

I followed the instruction using the Nuki App.