android bluetooth, what is the difference between bonded and paired -

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I am busy to add my Samsung Galaxy S4 to an Android project with Bluetooth from another Bluetooth device in Bluetooth. I want to start with a HTC Incredible S

My question is: What is the difference between bonded and coupled? Because Android says that this is the same, but in my application they are not doing the same thing.

I have red when you start discovery (). You can see all coupled devices that work well, but if I call the device. GetBondState (); So it indicates that the device is not binding.

And if the device is not locked, then I can not connect to the device.


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