Bluetooth Pairing
For another device like a smartphone to use any of the Bluetooth “services” which the micro:bit has, it must first be paired with the micro:bit. Once paired, the other device may connect to the micro:bit and exchange data relating to many of the micro:bit’s features.
Follow the Bluetooth Pairing Guide to pair your micro:bit to your computer or phone.
If you need additional help in pairing your micro:bit to another device, see these guides also: