These instructions also apply to the Xbox One Stereo Headset Adapter.
NOTE: These instructions only detail how to update the Xbox One Controller by using the HAC as a prompt.
If your console needs an update, you’ll be prompted to install one. Plug the Headset Audio Controller into the bottom of your controller. Plug the Headset into the Headset Audio Controller.
A headset must be plugged in for the adapter to turn on. Plug the large USB end of the included USB cable into the USB port on the side of the Xbox One. Plug the small end of the USB cable into the small USB slot on the top of the controller. Instructions to install the update should automatically be displayed. Follow the instructions, and don’t disconnect the USB cable while the update is in progress. When the update is complete, unplug the USB cable from the controller. Press the Xbox button on the Wireless Controller to turn it on.
And mine is set to instant on, based on my screenshot.
Take a look at your settings, if you have an xbox one, and compare to mine.
The new Xbox One Controller does not require any update.
This video shows how to update your Xbox One controller to work with the Xbox One Audio Adapter so it will work with your Turtle Beach headset: You can check firmware update availability and system information on the Microsoft Website: Xbox One System Update The Headset Audio Controller (HAC) and Headset Audio Controller Plus (HAC Plus) are manufactured by Turtle Beach.
Note: You only need to update your controller one time, but if you plan to use the Headset Audio Controller with other Xbox One Controllers, you’ll need to repeat this process for each controller.
Let's just hope that gamepad upgrades are less frequent from here on out.
Update (4/7): Major Nelson has posted a list of features coming to the update preview confirming the ones mentioned above.
He's also posted a pic of what that new system update check button looks like (hint: it's a button), and explains that now, the system will return to standby after new updates are installed.
That "silent reboot" will mean the day after an update we can say "Xbox On" and boot up quickly, instead of having to actually press a physical button and endure the longer cold start process -- we're far too fancy to be stuck waiting around, you know?
Make sure your console is on and you’re signed in and connected to Xbox Live.