How to fix a broken laptop charger jack?


Do you have a laptop that isn’t getting power from its AC adapter/charger? Have you looked at the charger and saw that the metal tip of it appears to be broken inside of your laptop’s power jack or is no longer making contact with the charging pins in the power jack? The solution to this problem is an easy one. All you need to do is solder a new connector onto your existing charger – then it will work perfectly again.

The following steps walk you through how to fix a broken laptop charger jack:

1) Purchase a replacement tip for the end of your current laptop AC adapter cord. The replacement tip needs to match up with the size for your specific model number of AC adapter. An Internet search engine can help you find these replacement tips. For example, if you have an Acer Aspire 3003WLMi Laptop Computer, the replacement tip is model number T1622. You can get them from eBay.


2) Unscrew your existing power adapter end from the cord. Use a small- Phillips screwdriver if needed. Unplug the internal wires from around the screw holes on either side of your laptop’s power jack cavity. Insert your very thin flat head jeweler’s screwdriver into one of these open slots and gently wiggle it to make room for the insertion of the new plug prongs. Take care not to damage any nearby components with this tool – or you will need a new laptop! But why go through that path if you can claim repairs done on your laptop on tax return anyway.

3) Once there is enough space between the inner component wires, carefully lift them out of their slot and remove the new power adapter plug. Insert the prongs of your new power jack into the opened cavity, matching it with the polarity shown on your laptop’s motherboard diagram.

4) If you are using a replacement laptop charger that is of a different voltage than the original, be aware that most laptops cannot accept power outside of their home country’s standard range (for example 90V – 240V) without an additional power converter board upgrade.

5) If this is the case, unless you are comfortable with making these changes to your computer’s internal components, do not attempt use of a foreign voltage socket adapter on your laptop or it may damage or destroy its motherboard beyond repair! Once all wires are in place and secure inside their slots, screw down the end piece back onto the power adapter.

6) Since it is more common for wires to fray inside the jack than outside, you will need to disassemble the socket with a pair of wire strippers and cut about an inch off all three of your power cables so that they are flush at the entry point. Then strip off another half-inch or so of their insulation until you can see their metal cores clearly. At this point you will carefully rearrange each of the wires into one big bundle – do not form them into any kind of circular shape!

7) Connecting the D+ pin to either D+ or D- (but not both!) as well as GND pin to GND should be enough for most laptops to charge again, if it does not, try switching the D+ and D- wires instead.

8) Make sure to tape up your new combined bundle so that they are completely insulated! You may want to do this by wrapping your newly created wire-bundle in electrical or duct tape around once or twice, then placing a layer of heat shrink over the whole mess. If you have multiple layers of heat shrink the process can be repeated until you have about an inch’s worth of “tube” all layered together on top of each other (excess lengths can either be cut off at this point or left alone for more protection).

9) At this point, you should plug it in and test if your computer will charge with the newly rearranged power cable. If it does, congratulations! If it doesn’t, you will need to move on to the next step.

10) Examine carefully where your wire is plugged into your laptop. You should see four metal contacts inside of a small hole lined up with the plug-in prong (atop the picture). Using a piece of stiff paper (such as cardboard), jam or squish this wire down inside of that hole using something thin and relatively sharp like a safety pin or tweezer. This may take some doing but if done correctly you can make contact with all four prongs by reinserting the cord in any orientation.

11) Once you’ve redone all of these steps yourself and made sure that they work, then it’s time to let some real professionals take a look at it. Determining if your cord or its wiring is defective can be easy or hard depending on the particular laptop model that you have.

If all else fails, then try using electrical tape on either side of where your wire meets with your power supply. This is not advised for two reasons

1) Heat will build up over time and cause the wire insulation to melt or

2) If there was already damage done to the wire, electrical tape can do more harm than good. But this option is only suggested as last resort.

So now you know how to fix a broken laptop charger jack! Keep these steps in mind every time you experience problems charging your laptop so that you can fix the issue before any real damage is done to your device. Follow these steps to avoid future issues with your power supply cord.

There are other ways that it could come loose, but this method would cover most charger wires. Just keep in mind that electrical tape can cause more problems than it’s fixing if there’s already physical damage to the wire, so only use it as a last resort!

If you are having trouble, you should know that our Melbourne laptop repair technicians are just around the corner!

I am a computer engineer holding a bachelor's degree in Computer Science, complemented by a Master's in Business Administration from University of Strathclyde, Scotland. I currently work as a Senior IT Consultant in Melbourne, Australia. With over 15 years of...