Do-it-yourself laptop keyboard cable repair

In detail: do-it-yourself laptop keyboard cable repair from a real master for the site my.housecope.com.

Over time, the keyboard begins to lose its freshness, it may begin to type worse, and sometimes some buttons completely stop working. In these cases, it is necessary to carry out preventive maintenance or complete replacement of the keyboard.

Image - Do-it-yourself laptop keyboard cable repair

To do this, it is enough to do some algorithm of actions to remove the keyboard. It depends on what laptop model you have. For example, to remove the keyboard of an Acer Aspire 5920 laptop, you need to remove four latches on the top and two on the sides, after which, by easily prying the keyboard, it can be removed from the laptop. In this case, one difficulty arises, which most often leads to more severe breakdowns - disconnecting the cable.

To do everything right, before pulling out the cable, you must carefully move the sealing plate (retainer). After that, the cable is carefully removed from the connector.

In this case, two breakdowns may occur, for which it will be necessary to repair the laptop keyboard cable:

  • broken latch or damage to the keyboard connector itself;
  • rupture of the loop of the laptop keyboard.

To solve the problem of a loop break, you can use several methods:

  • re-solder broken contacts
  • carefully clean broken contacts;
  • apply a small amount of solder;
  • solder broken contacts;
  • isolate them with adhesive tape or varnish.
  • use alternative binding
  • clean up the gap;
  • put a wire of a suitable size;
  • use glue "Kontaktol" (sold in automotive stores);
  • such a connection will not be flexible.

If you successfully removed the keyboard, then you need to use special tools to clean it. In order to remove dirt and accumulated dust, a paint brush is best; To clean the outside of the keyboard, you can use a slightly moistened soft cloth (such as Fairy or alcohol) to gently go over the entire keyboard.

Video (click to play).

Humidity should be sufficient to clean the surface, but not leave streaks. Then wipe the surface with a dry cloth or cotton. After that, the keyboard can be installed back, being careful when connecting the cable. After checking the functionality, the keyboard can be installed permanently by securing it with latches back.

Sometimes it turns out that when disassembling a laptop by negligence or due to insufficient strength, the lock of the keyboard cable connector breaks.

After it breaks, it becomes impossible to fix the keyboard cable.

It is best to replace the connector, but finding it is problematic, and besides, to replace it, you will need special equipment that not everyone has.

Therefore, we will analyze the way how this problem can be solved with the help of improvised means that everyone has.

Before work, it is recommended to turn off the power to the laptop by turning off the power supply and removing the battery.

Next, take an ordinary plastic bottle and cut out a plastic plate from it. You need to cut a plate the width of the train.

Then install the cable and push the cut out plate between the cable and the connector pins. The plate should enter with effort, securely fixing the cable.

In our case, the thickness of the plate was not enough, so we bent it twice and inserted it into the connector in this form.

After that, we fix the cable with masking tape to avoid accidental disconnection of the cable during shocks and vibrations.

However, this procedure will have to be performed every time you disassemble the laptop to clean and replace the thermal paste.

This method works not only for laptop connectors, but also for similar connectors on tablets, smartphones, cameras and other devices.

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A broken keyboard is a big nuisance for a laptop owner. Unlike the owner of a PC, who can always replace a worn-out external accessory with a new one, in such cases he has to give the laptop itself for repair. And it’s good if there is no influx of customers in the service workshop, then the repair of the laptop keyboard or its replacement can be done quickly. Otherwise, you will have to do without the device for at least a few days.

Alternatively, you can try to repair the equipment with your own hands.

Problem Diagnosis

To fix the problem, first of all, you need to understand the cause of its occurrence. Damage can be caused by:

  • oxidized loop contacts
  • burnt microcontroller
  • spilled liquid on buttons
  • mechanical damage.

In addition, the laptop keyboard may fail due to operating system errors. In this case, it is not difficult to solve the problem yourself. It is enough to follow the installation steps or drivers and the device will work again.

In the event that the breakdown is caused by other reasons listed above, repairing the keyboard is much more difficult, and sometimes the only way out may be to replace it.

If the laptop has a fairly decent life, problems with the keyboard may be due to wringing out or oxidation of the cable contacts. To test this option, the device will have to be disassembled. How it is done, look at the photo:

Having reached the cable, you should disconnect it by sticking it out of the connector. If damage to the contacts is clearly visible during visual inspection, the component will have to be changed. Replacing it yourself is not difficult.

If outwardly everything is in order with the contacts, they must be wiped with a cotton swab dipped in alcohol or with an ordinary clerical eraser. After cleaning, insert the part into the connector, after which you can test the device's performance.

It should be borne in mind that if the cable is repeatedly disconnected, the connector may become unusable, after which the replacement of the keyboard will be inevitable.

The reasons for the breakdown can be as in the photo:

It is more difficult to fix a breakdown that occurred as a result of liquid getting under the buttons. Often it is not possible to fix the keyboard at all. In this case, the problem can be solved only by replacing it, and at the same time other laptop components affected by getting wet.

Keyboard replacement is most often trusted by professional craftsmen, but you can do it yourself. Changing the panel is not as difficult as it might seem at first glance. Here is how buttons are replaced in a service workshop: