Use that code on the dialer to have a rolling update/upgrade available to your device no matter where you are in the release schedule geographically. Do NOT press "call" after entering *#*#CHECKIN#*#*, just watch the notification area for a prompt that you are checked in. Then go to the usual area to check for software updates and, as long as the rolling update/upgrade has started, it will come to your device. I just tried it and it works, it checked me in. No update, of course, but the notification area did indicate I was "checked in." Sorry if this has been posted before. I've not seen it.