My son's headset seemed dead to the world. No lights, no connection. Couldn't reboot or power off. NOTE: a page or two back has youtube links to the pairing process
Here's what I did to fix it. (I didn't wait 24-48hrs for the battery to die)
I plugged in a USB cable to my computer. The head set appeared dead but regardless, I pressed and held the mute button plugged in the USB cable
[*]Then lights on the side of the headset were illuminated (previously not)
[*]Still had the yellow exclamation point, headset was not connected.
using a paper clip I put the USB receiver into pairing mode I put the headset into pairing mode (It's been a few days, forget the steps... I think hold mute & power)
[*]The lights on the receiver and headset indicate successful pairing.
[*]Still unable to force firmware update wirelessly
it seems to start but doesn't say finished can't remember but I think I had unplugged the USB cable might still have had the yellow exclamation point.. not paired
[*]7. I plugged the USB cable back into the computer then the headset
[*]8. Forced the firmware update again. completed successfully
SUCCESS: Headset has been working great now.
Thoughts: This was super frustrating but considering that this thread started several years ago, they've sold thousands and thousands, and it's only up to 12 pages, I'll bet this is probably a pretty rare situation. But it sure sucks when it happens to you.
Maybe not all the steps above were required.
Good LUCK!