Hey there Larryps, thanks for reaching out. You will need to place your Quest 2 on the charging cable. Oculus Devices must be over 50% charge for it to update without a charger. Hope this helps.
If you are still have questions or an issue with updating the device, don't hesitate to reply back here!
Hey there, thank you for letting us know that it is completely charged. We would also like to ensure that you have your headset charging while attempting the update, once the update is complete you should be okay to go ahead and unplug it from the charger.
If that hasn't helped we would like to provide you with steps on how to perform a hard reboot, please see the steps below:
With your headset on, hold the power button on the right side of your headset down until you're prompted with a shut-down screen.
If this hasn't helped please reach back out here, so we can continue troubleshooting.