I cannot have my Zorin PC conform with Bluetooth pairing of Sony's wire-less speaker, SRS-XB13.

[sugabusbaby-netizen]

I am a new to Zorin 18.1 Pro on Dell's Inspiron 5559 and troubled with the above-mentioned issue while I have been trying to find a solution by all means. Meanwhile, another PC with Zorin 18.1 Core on NEC NS300 is working without a problem. The former tries to find out SRS-XB13 but it cannot do so by any means. Please help me.
Norio alias Parsifal