Hi,
I have quite old ruuvi tag. It has the B and R buttons.
Recently I had it outside and its battery ran out and it was offline few weeks.
Now when I changed its battery, it cannot be found on bluetooth. I have tried via Ruuvi Station app and the nRF connect but both apps seem not to find that tag.
I have many other tags and these can be found but this one tag seems to have some issues with bluetooth.
It blinks the dim green light regularly so it seems to have power and is transmitting.
Is there anything else to try here?