Hi,
Finally, I got it working. To make it happen you have to do:
1. Press right key on the keyfob to start advertising(red and green leds should blink when advertising)
2. in Btool, scan for device, next establish connection (connection handle should appear in the left panel)
3. in order to get BP Measurement (BP Intermediate Measurement) characteristic indication (notification) you have to write value 02 00 to attr handle 0x0013 (value 01 00 to handle 0x0017). The 0x0013 and 0x0017 are handles to CCC descriptors of mentioned characteristics.
Notification should be visible in BTool.
Keep in mind whatever you send to keyfob, it needs to advertise to get replay. There is a timeout which will stop advertising, so keep watch the leds.
Thanks,
