Headset Disconnects all other accessories, cannot resync without a hard refresh

Disconnect all of your accessories, and attempt to resync your controller.

Xbox 360 Wireless Controller disconnects or can't connect info can be found here -

http://support.xbox.com/en-US/xbox-360/accessories/wireless-controller-disconnects-frequently-or-cannot-connect

If that does not work try Troubleshoot controllers and headsets found here -
http://support.xbox.com/en-US/xbox-360/accessories/controllers-remotes

Hey mate, it's hard to say what could be the issue as electronics products can give up without any notice, I can only suggest if you have the charge cable to try and plug that in to see if it works with a direct power source, also try the troubleshooting
steps here:
support.xbox.com/.../wireless-controller-disconnects-frequently-or-cannot-connect

Other then that, it might be a new controller, unfortunately.

Hello Hayden, thanks for the additional information.

May I know if you have an internal hard drive on the console?

If that's correct, please try performing the update one more time, but in this case without the hard drive connected.

Additionally, if you have other USB accessories, disconnect everything except the flash drive.

Hey there Nighworlder,

It's hard to say what might be going on with the controller since it's second hand. If you have the ability to exchange the controller you might want to consider that. You could try the following steps though to try and troubleshoot it.

1. Make sure the controller's fully up to date with these steps.

2. Try to disconnect the controller from the console and resync the controller with
these steps.

Hope that helps! If not, you'll need to replace the controller most likely.