start > configuration > bluetooth > further options >

the bluetooth-configuration dialog will open

bluetooth-configuration > hardware > [SELECT THE DEVICE YOU KNOW IS PAIRED] > options >

the options of [YOUR DEVICE] dialog will open

options of [YOUR DEVICE] > details > Hardware-IDs

the entry should look like this: BTHENUM\Dev_0123456789AB

where 0123456789AB is the mac-adress of your paired device.