UniCarScan UCSI2000 Bluetooth Adapter

🚧 THIS IS A TICKET MIGRATED FROM UPVOTY. The original ticket and comments will be available for a limited time over at:
https://abrp.upvoty.com/b/report-a-bug/unicarscan-ucsi2000-bluetooth-adapter/
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The adapter is shown in the list of available devices but the connection doesn't work.
With other apps I get a request for a pin which is 1234.