Xbox 360 controller not working, all 4 lights are blinking.
The wired and wireless controllers can be actively connected to an Xbox 360 console all at one time. Each connected controller is assigned a quadrant on the Ring of Light. Before you can connect a wireless controller, at least one quadrant must be free and will be unlit.
Connecting an Xbox 360 Wireless Controller to an Xbox 360 Console is called Connecting. To connect a controller to a console:
First, Press and hold down the Guide Button on the wireless controller until it turns on.
Second, Press and release the power button to turn the console on.
Third, Press and release the connect button on the console.
Fourth, Press and release the connect button on the controller.
Fifth, After the ring of light on the controller and console spin and flash once, the controller is connected. The quadrant that remains lit indicates the controller's position.
Four Green lights on the controller's Ring of Light flash continuously
The Please Reconnect Controller message appears on the monitor
There is interference and the controller does not respond properly
Step 1: Ensure that either the AA batteries are new or the Xbox 360 Rechargeable Battery Pack has a full charge.
Step 2: Ensure that you have performed the proper procedure to connect the Xbox 360 Wireless Controller to the console.
Step 3: If still experiencing issues, ensure there is a clear line of sight between the front of the console and the wireless controller. If there are any obstructions, especially metal objects, remove them.
Step 4: 2.4 gigahertz cordless telephones, microwave ovens, and Bluetooth headsets for cell phones can interfere with the operation of the wireless controller. Turn off or unplug those devices and then try to connect the wireless controller to the console again.
Step 5: If these steps did not resolve the issue, the wireless controller may need to be replaced.