Trouble with: setAdvertising heart_rate

Quick update, I'm able to read heart rate of 40bpm (with contact detected) and body sensor location: wrist on nRF.

But it's not advertising (yet).

Here's the code (because I'm not tracking changes!):

NRF.setServices({
  0x180D: { // heart_rate
    0x2A37: { // heart_rate_measurement
      notify: true,
      readable: true,
      broadcast: true,
      value : [0x06, 0x40],
    },
    0x2A38: {
      readable: true,
      value: [0x02]
    }
  }
});