Planet Technology BT-510U - Manual (Page 24)

If you have not entered your Bluetooth passkey after a certain amount of time
has passed, the connection process will be cancelled for security reasons.
Please perform the passkey entry process again.
If you try to register a device that has already been registered, the following
message will appear, and you will not be able to proceed with further operation.
Please click on the [OK] button to close the message.
The services supported by the device will be displayed.
2. Select the desired service and click on the [Next] button.
Note
When a device supports several services
If the device supports several services, you can use Custom Mode to manually
select the services (profiles) you wish to use from the list that appears under
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