Todavía no la he probado, pero parece ser cosa del kernel de android. En el enlace que pongo en el post 2, hay un usuario que pone lo siguiente y que de esta manera le funciona correctamente:
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All guys with problems connecting the bluetooth transmitter to Android phones !!
I found a solution (at least for my HTC Wildfire)! Here is the workaround:
Precondition: you have paired already before (at least once).
If you have not already paired start with point 3.
1. Switch on bluetooth and scan for devices. You will find an entry named "Polar xxx" and stated as "paired but not connected".
2. Mark this entry and select "unpair"
3. Scan for devices again, the entry "Polar xxx" will appear. Activate this entry. The password will be requested. Fill in "0000" and confirm.
4. Now the transmitter should be paired again and your application (sportstracker, endomondo....) should connect.
This procedure has to be repeated every time you want to connect!!! Nice, isn´t it. Thanks to Polar.
Not a smart solution but it works... at least with my phone. Hope you are successful as well.
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Lo probaré esta tarde a ver qué tal me va y mañana te comento pedrov.
Un saludo.