puck.js: advertisement not working !!! Need help

Hi,

Regarding this advertising behavior that does not work for me, I'm refering to this part of the documentation https://www.espruino.com/Reference#l_NRF_setServices
It is said here

Just creating a service doesn't mean that the service will be advertised. It will only be available after a device connects. To advertise, specify the UUIDs you wish to advertise in the advertise field of the second options argument. For example this will create and advertise a heart rate service:

NRF.setServices({
  0x180D: { // heart_rate
    0x2A37: { // heart_rate_measurement
      notify: true,
      value : [0x06, heartrate],
    }
  }
}, { advertise: [ '180D' ] })

In my code (provided earlier in this post) I'm replicating exactly the same things but does not work

What do I do wrongly ?

Regards
Vpl