Saving on 1v91 and pairing on 1v92 with windows 10

I'm not sure I understand exactly what happens with what code and what firmware...

When you upload this code on 1v92:

var kb = require("ble_hid_keyboard");
var on = false;
function onInit() {
  NRF.setServices(undefined, { hid : kb.report });
  setWatch(btnPressed, BTN, {edge:"rising",repeat:true,debounce:50})­;
  flashLED();
}
function btnPressed() {
  kb.tap(kb.KEY["c"], 0);
}
var flashLED = function() {
  on = !on;
  LED1.write(on);
  var interval;
  if(on) {
    interval = 5;
  } else {
    interval = 3000;
  }
  setTimeout(flashLED, interval);
};

did you type save() after uploading? And when you do that, disconnect and try and pair, pairing fails and the light stops blinking? but you don't get the 3 LEDs all lighting up together at any point?