LED on AC Adapter Off or Flickering

Adapter LED is Not Staying On or Coming On and/or the Connection is Loose
 

The AC adapter LED may flicker. The power cord that plugs into the adapter brick and the wall outlet may seem loose. The battery will not charge and the system will randomly shutdown when running on only the AC adapter. This could all be due to a poor connection of the of the wall outlet power cord to the AC adapter brick.  

Confirm the Wall Outlet Power Cord is Firmly Seated to the AC Adapter Brick
 

Verify the AC power cord is correctly installed. Plug the power cord into the adapter brick by using the following steps.

1. Unplug the adapter DC cable from the portable computer.
    
2. Unplug the adapter AC power cord from the wall outlet.
    
3. Remove the AC power cord from the adapter brick.
    
4. Use two hands for attaching the power cord to the AC adapter brick. Hold the adapter in one hand, and place the power cord in position over the two or three prong connector on the adapter brick itself (Figure 1).
    
5. Using the palm of the hand, push the power cord in fully, until it clicks (Figure 2).
    
6. Reconnect the AC adapter to the wall outlet. Verify the LED on the AC adapter turns on and stays on, with no flicker.
    
7. If the above steps fail to resolve the issue, refer to: AC Adapter Not Powering on the Computer or Charging the Battery.

     
Figure 1: Align the power cord.

Figure 2: Press the power cord firmly until it clicks into place.