The flashing light on your Xbox controller may be an indication that it has a low battery. … That includes using a Play & Charge Kit, a micro USB cable, or rechargeable battery pack. But you can also use standard AA batteries if those are what you have on hand.

Why does my Xbox controller just keep blinking?

If you press the Xbox button on your controller and it blinks or flashes, this usually indicates that your controller isn’t paired to a console. Simply plug the cable into a USB port on your console and connect the other end to your controller, then hold the Xbox button on your controller for a few seconds.