Xiaomi
Unpair a Bluetooth Device auf Xiaomi
A Bluetooth connection on Xiaomi phones is stored as a saved pairing, not just an active link. This is why a device can still show up and try to reconnect even after you switch Bluetooth off and back on.
Unpairing removes that saved entry from MIUI completely. It differs from simply disconnecting, which only ends the current session and leaves the pairing in place for the next time both devices are in range.
To unpair a device on your Xiaomi phone: Tap on Settings ➔ Tap on Bluetooth ➔ Open the Menu ➔ Tap on Unpair.
After this, the device no longer appears in your list of paired devices. Connecting it again means going through the full pairing process, including any confirmation code the other device requires.
Unpairing is the right move when a device is no longer in use, when a headset or speaker refuses to reconnect properly, or when you are handing the accessory to someone else. If a device only drops audio occasionally but still connects fine otherwise, check the connection quality or driver settings on the accessory first instead of removing the pairing.