How can I check Bluetooth is working?

Hi,
I just move from a Pi 2 to a Pi 3, but can’t get Mi Flora component working. I’ve followed several tutorials/threads found here on the community (like this one), but still…

Do I have to “turn on” the Bluetooth chipset somehow? How can I check it’s working on my Pi?

I just took out the SD card from my Pi 2 and swapped it in on my new Pi 3. Am I missing something? Thanks!

There’s a different image for RPi2 and RPi3 so you shouldn’t just swap the card.
You really ought to install the correct image for your RPi and then migrate your confi over…