X button on controller stopped working

It sounds like you need to sync your controller to the console.

http://support.xbox.com/en-US/xbox-one/accessories/connect-a-wireless-controller

I would power cycle the console as well. (Hold console power button down for 10 seconds)

My controller stop working too series x , factory controller . Last night working and today my samsung tv remote control my xbox and the xbox controller no longuer view by the xbox , i use another controller from my other xbox seris s , and this controller work but not the one work last night , i try the little button to match xbox with but nothing , the controller do no longuer view on my xbox series x , can control de series s but can't be view or connect to the series x anymore

Heya I Fresh 23 I!

Sorry to hear about the controller troubles. If there is physical damage with your controller then a replacement is going to be your best option. Please make sure not to bump older threads, as this particular thread was created in 2014. If you'd like some
troubleshooting assistance please create a new thread, we're happy to help out

There has to be a problem with these. My first controllers' LB button never felt right, then got worse over time and became extremely inconsistent. Then the RB button on that same controller gave out completely without warning. So I bought a new controller
only about 3 months ago, LB button worked fine for around 2 months, and now it's inconsistent. I do not beat up my controllers at all so it's not me.

I'd would be nice if Microsoft could at the very least, make a repair kit with the security wrench and shoulder buttons available for purchase.

Mine hasn't stopped working as of yet, but it isn't as responsive as a 3 month old controller should be. The quality of their controllers and mics are very suspect.