Puck.js iBeacon code not working

Hello,

I have used the standard code from the espruino library:

require("ble_ibeacon").advertise({
  uuid : [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], // ibeacon uuid
  major : 0x0001, // optional
  minor : 0x0001, // optional
  rssi : -59 // optional RSSI at 1 meter distance in dBm
});

But nothing is working. I am on the latest firmware.

Anybody has it working?

Thank you!