Why does my controller blink when i plug it in through usb?

Thank you for contact us! I'm Anderson, an Independent Consultant and a Microsoft user like you.

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try to update the firmware

https://support.xbox.com/en-us/help/hardware-ne...

if it doesn't work, The joystick has a 90-day warranty, microsoft does not carry out out-of-date repairs.

If it is within the deadline, request the repair:

it is necessary to register the product on the microsoft website and open a work order.

https://support.microsoft.com/en-us/devices

if you have any questions, follow this link:

https://support.xbox.com/en-us/help/hardware-ne...

When I connect the controller via USB should it be powered off or should it turn on automatically as I plug it? Because the last one's happening and when I do the "hold down the controller's Xbox and menu buttons for
5-10 seconds" it doesn't do anything.

As I plug the USB the controller turns on already blinking.

I’ve been getting a problem with my controller lately. When I turn on my xbox and dont have a USB cable connected, it works fine, but when I want to use my USB cable, in a few seconds, it disconnects from xbox and goes into its blinking lights like
if it where syncing. Then it turns back on and does the same thing with the blinking lights. I tried syncing it to my xbox while the USB cable is connected, but when I press the syncing button on the xbox, it doesnt blink when its syncing. Try a different
cabble

Summary: I fixed it by plugging USB cable into a controller and pc, win 10 recognized it, system restart was required and after that controller was working wirelessly also.

Longer description: I installed fresh windows 10, downloaded and installed all win updates, then I tried all these steps and at the end controller started working.

1) plugged wireless adapter into USB windows 10 recognized it but Xbox one controller won't connect (keep on blinking)

2) plugged wireless adapter into another USB port but Xbox one controller won't connect (keep on blinking)

3) plugged wireless adapter into another USB port started task manager removed Xbox one adapter, windows found it again but still noting (gamepad keep on blinking)

4) plugged wireless adapter into another USB port (front) started task manager removed Xbox one adapter and Xbox drivers, windows found it again installed it but still noting (gamepad keep on blinking)

5) FINALLY, I fixed it by plugging USB cable into a controller and pc, win 10 recognized it, system restart was required and after that controller was working wirelessly also.

When my headset is plugged in when I power on my controller it never comes on. The controller just blinks. I have to plug in the headset after the power is fully on the headset. Then it works fine.