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Posts: 48
Registered: ‎06-24-2010
My Device: Storm 2
My Carrier: Orange

Paired,trusted Bluetooth device - always asks for PIN

Hi guys,


I'm working on application that needs to connect to Bluetooth device (Zephyr HxM - it's a heart rate monitor) using SPP profile (this is the only profile that device supports). First I go into Bluetooth setting, I search for the device, add it, pair (enter PIN...). After that I set it as trusted (Trusted = Yes).


Inside my application I use BluetoothSerialPort classes to connect to device and read incoming data. This works perfectly fine. The problem is, every time I open a connection (so this happens once per application launch), BB prompts me to enter PIN and pairs the device. This happens every single time, despite the fact that I paired the device before and set it as trusted. If I pair Bluetooth headset - everything works fine. Am I missing something, or is this expected behavior. Could anyone advice?


Thanks and have a happy new year,


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