How to troubleshoot "okay google everywhere" missing from voice settings?

This is what I see: (Click image to enlarge) " class="img-fluid rounded" style="max-width: 100%; height: auto; margin: 10px 0;" loading="lazy"> And this is what I would like to see: " class="img-fluid rounded" style="max-width: 100%; height: auto; margin: 10px 0;" loading="lazy"> I am using Motorola Moto G 3rd generation (2015), 1 GB RAM, 8 GB storage; XT1541 I have already tried a few things: - I'm already using the latest version of Android as of now: 5.1.1 Lollipop. - I'm using the latest version of the Google now application: 5.1.17.19.arm - I have tried to search for the magic phrase "okay Google everywhere" - I have tried to uninstall and reinstalled the Google application. I think it was just a downgrade to version 4 of the app because the Google Play store told me that it is a built in application. - restarting the Google application by force quitting the app and/or restarting the whole phone. - switching the local from UK English to US English wherever I could find it in the phone settings. - and maybe some other things too. But nothing seemed to help. What could be causing the missing option? What else could I try to make it show up? I am also thinking about contacting support. If I do so, should I be contacting Google or Motorola? **Edit:** - The version of my "Google Now Launcher" application is 1.1.1.1706998 - I have even tried factory reset with and without restoring from backup; no success.