Fixing this requires very precise work with either soldering the power connector back onto the motherboard or replacing the power connector itself, if it's defective. If a solder point is damaged or has broken away from the motherboard it prevent the laptop from getting power from the AC adapter. The power connector connects directly to the laptop's motherboard, usually through one or more solder points. Make sure this pin is not bent or broken as it can cause a problem with the laptop receiving power from the adapter. Also, in the tip on the adapter or the connection on the laptop, there is often a small metal pin. The metal tip on the adapter cord needs to be firmly attached to the laptop for the laptop to receive power from the adapter. Adapter not plugged into the laptopДЄlthough it may seem obvious, the adapter can become disconnected from a laptop pretty easily. You can verify the connections by disconnecting and reconnecting all cables. The two pieces connect at the rectangular box piece, often called the brick. Make sure both of those pieces are connected firmly and securely. Most laptop AC adapters come in two pieces. Also, double check the circuit breaker and make sure nothing is tripped or turned off. Alternatively, you can also try another wall outlet. Use a voltmeter to measure the power output and verify the outlet is functioning properly. If the light switch is on, verify the wall outlet is working in general. Many newer houses, apartments, and condos feature this type of wall outlet. Some wall outlets require a light switch to be in the on position for the outlet to be active. A power indicator indicates that the adapter is receiving power. Check for this indicator light and if there is one, make sure it is light up with a green light. Many laptop AC adapters have a power indicator light on the adapter brick. When in doubt, a good way to make sure it is plugged in properly is to disconnect and reconnect the plug. If it's plugged in partially, it can make it seem like the adapter is not working, but it may not be getting power from the wall outlet. Although it may sound obvious, the adapter can become loose without even knowing.

Make sure the AC adapter is firmly and securely plugged into the wall outlet. Verify adapter plugged into a wall outlet If you're experiencing a problem where your laptop's AC adapter is not working or is not working correctly, there are several things you can check before looking to buy a new adapter.

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