Lock stuck in purple mode!

On HomeKit locks, it will show constant red LED.
How-to-fix, for Danalock V3 series only

This page explains how to get your Danalock V3 out of purple/red mode.

Purple/red LED on the lock indicates that the lock is in upgrade mode.
To get it out of this you will need to do a manual firmware update.

Run the update twice if needed:
If the first update does not solve the issue then please do the update one more time, following the guide below.

A stuck button:
If the button in the small pinhole behind the LED is stuck, this could be the reason for the lock to have entered the update mode (Purple led / red led). Please remove a battery and try pressing the button a few times to see if it clicks as would be expected or if it releases.
Re-insert the battery and if the lock starts without going into the update mode (not showing Purple/red LED), then the issue has been resolved.


Choose what type of device you will be using for the firmware update.

ATTENTION for HomeKit locks stuck in upgrade mode - red LED.

In some cases, our guide in the link above does not work and you will have to download the firmware file for your lock manually and use the nRF toolbox app.

At the moment the manufacturer of that app is having issue to you will have to use their app called "nRF Connect for Mobile" - find it in the App Store.

The firmware file can be downloaded on our firmware page.

I will shortly explain how to use that app here:

  1. Pull one battery from the lock.
  2. Insert a pin in the small pinhole just behind the LED on the lock - hold it there while you re-insert the battery. The lock will again show a constant red LED.
  3. Download the firmware file for your lock in the firmware page link above and save it on your mobile device.
  4. Open the "nRF Connect for Mobile" app that you downloaded earlier.
  5. The Scanner page should show up - here you should look for an orange icon with the text "DFU" - press "Connect" for that one.
  6. A new page shows up and you should now see some tabs in the top of the screen - one of them is called "DFU" - press that one.
  7. Press the button at the bottom called "Open Document Picker"
  8. Locate the Zip file you downloaded - the firmware file.
  9. Now press "Start" to start the update.
  10. Once done, the lock should reboot - show a short white LED and then turn off the LED - if it goes back into the RED constant LED, then run the update once more.
  11. If the second attempt doesn't fix the issue then please reach out to our support.