How to handle problems with notebook adapter？

If you are experiencing a problem where you laptop's AC adapter not work or is not working correctly there are several things you can check before looking to buy a new adapter.

Make sure adapter plugged into a wall outlet

Make sure the AC adapter is firmly and securely plugged into the wall outlet. This may sound obvious, but many times the adapter can become loose without even knowing. When in doubt a good way to make sure it is plugged in properly is to disconnect and then reconnect the connection.

Check adapter brick connection

Most laptop AC adapters come in two pieces. Make sure both of those pieces are connected firmly and securely. The two pieces connect at the rectangular box piece, often called the brick. This connection can become loose or disconnected relatively easily, so need to make sure the connection is good.

Check the wall outlet itself

Many newer houses, apartments, and condos feature the type of wall outlet that require a light switch to be in the on position in order for the outlet to be active. If the light switch is on, verify the wall outlet is working in general. You can also try another wall outlet. Also, double check the circuit breaker and make sure nothing is tripped or turned off.

Adapter plugged into laptop

This may seem obvious as well, but the adapter can become disconnected from the laptop pretty easily. The metal tip on the adapter cord needs to be firmly attached to the laptop in order for the laptop to receive power from the adapter.

Laptop power connection port

This is a bit more difficult to check or diagnose. The power connector is connected directly to the laptop's motherboard, usually through one or more solder points. If a solder point is damaged or has broken away from the motherboard, this will prevent the laptop from getting power from the AC adapter. Fixing this requires very precise work with either soldering the power connector back onto the motherboard or replacing the power connector itself, if it is defective.

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If you think this may be your problem, it is something that's best left to the expert technicians who may need to take apart the laptop to get the motherboard or power board and diagnose the problem.

Replacement

If you've determined the AC adapter is not working properly and needs to be replaced, you can try to get a replacement from the laptop manufacturer, which will usually sell an exact replacement or compatible universal AC adapter. You can also purchase a AC adapter from a local or online electronics retailer. You will want to make sure you purchase one that matches the specs of your existing AC adapter, including the voltage and amperage. Also, check the packaging to make sure it will work for your laptop brand and model.