If the SD card has failed (see Troubleshooting), a new card can be prepared in a few steps: download the image, write it to the card, boot.
Download the smartive_native.img file, which contains the Smartive Core service and all of its dependencies:
The recommended tool is BalenaEtcher (it works on Windows, macOS and Linux). Three steps: select the downloaded file, specify the SD card as the target, then start writing.
Insert the SD card into the central unit, then connect the power supply. The system starts automatically within a few minutes.
The image can also be written with the Raspberry Pi Imager app.
From a terminal with the dd command — see below.
Linux:
sudo dd if=smartive_native.img of=/dev/sdX bs=4M status=progress
macOS:
sudo dd if=smartive_native.img of=/dev/rdiskN bs=1m status=progress
dd command, take care to specify the correct target drive — specifying the wrong drive
can lead to loss of data on the computer.