The Danalock needs an update on a regular basis - this can easily done through the Danalock app.
Make sure you are close to the Danalock before starting. In the Danalock app; click on the lock you want to update, then "Device". Select "Firmware upgrade" from the list. If there is a new system update available it will be downloaded through internet - click on "Upgrade Firmware" and "Server".
Do not close the app while the system update is being downloaded or while the lock is being updated.