Unable to find Bluetooth device

I tried to force the connection on Serial1 but now I've got an error 'Prompt not detected'

I really do wish this was simple. I was able to get this working in Python and Javascript fairly easily, something basic like finding a BLE device should be super simple :(

function onInit() {
  setTimeout(function() { Serial1.setConsole(); }, 1000);
  // ...
}

also tried

function onInit() {
  setTimeout(function() { Serial1.setConsole(true); }, 1000);
  // ...
}