Step1: Make sure BS80 is under Bluetooth with SPP mode by scanning the following barcodes:

Step2: Delete the current Bluethooth paring information.

If BS80 haven't been paried with any device, skip this step. 

Step3. Generate the pairing barcode with $$%^3^^5403+Target BT Mac address.

Following is the exampe for reference:

The default paring password is 0000