How to make a keyboard on a Dell laptop

How to replace keys on a laptop?

Laptop owners periodically have a common problem. a key has flown off (or several at once). This happens for many reasons: careless actions, pets, children’s games, falling of the device, etc. Do not rush to the service center, because replacing the buttons is a simple procedure that you can do yourself.

You need to remove some keys immediately when the laptop is flooded with liquid. Getting the button out is no big deal: you just need to pry the button with a sharp object, a small screwdriver or knife is suitable for this. But putting them back on later is quite problematic. To restore the keyboard, you need to familiarize yourself with the design of each individual button.

Single key design

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All laptops are different, but the principle of fastening the buttons, as well as their design, are approximately the same. On the back of each panel there are several mounts for the pressing mechanism (rocker, lift, latch). If the button falls off without a rocker, then putting it back will not be difficult: you just need to slightly press the button, directing the fasteners into the corresponding grooves.

Installing a flying button

The situation is somewhat more complicated if the part broke, flying off together with the retainer. To complete the repair, you will need:

  • Detach the retainer from the key.
  • Paste it in place.
  • Lightly press to set the button (press until it clicks).

Falling heavy objects will sometimes cause the mounts on the keyboard itself to bend that support the rocker with the key. They are made of flexible aluminum so they can be easily repaired. It is important not to damage these aluminum mounts, otherwise assembling the keyboard will be extremely problematic. This can only be done at the service center.

When installing individual buttons, you do not need to make any special efforts: the keys are placed in their usual place with a slight click. Pressing hard should be avoided to avoid damaging the plastic mounts.

Installing large buttons

Some keys (Ctrl, Shift, etc.) are large. A metal stabilizer is used to ensure even pressure. Changing such a button is a little more difficult: before installation, you need to start the fasteners of the iron bracket.

The space bar is attached to two locking mechanisms at once, and a metal stabilizer is also used. But this does not make the “Space” setting any more difficult.

In some cases, the rocker (fastening mechanism) flies apart. Careless disassembly or a heavy object that has fallen on the keyboard will lead to unforeseen situations. Despite its small size, the fastening mechanism is very simple and consists of only two parts. The retainer can be easily assembled with a needle, toothpick or nail file.

When installing the keys yourself, you should be extremely careful. Fragile plastic fasteners are small, so they can be easily damaged. Excessive force should be avoided so as not to break the key. Otherwise, repairing the keyboard will cost much more.

How to disable keyboard on Dell laptop?

To disable the keyboard, one is also available. To use it, press the Win R key combination and enter rundll32 keyboard, disable in the field that appears. To enable the keyboard, use a similar command: rundll32 keyboard, enable. This method also does not work in all operating systems.

How to turn on the backlight on any keyboard?

If your laptop has a backlit keyboard, press the F5 or F4 key (on select models) on the keyboard to turn the backlight on or off. You may have to press the fn (function key) key at the same time.

How to temporarily disable the keyboard on a laptop?

Disabling the keyboard of a laptop or computer by means of the OS

  • Go to Device Manager. In Windows 10 and 8, this can be done through the right-click menu on the “Start” button.
  • In the Keyboards section of Device Manager, right-click on your keyboard and select Disable.
  • Confirm keyboard disconnection.

What to do if the laptop does not respond to the keyboard?

Turn off your laptop, remove the battery and unplug the power cord. Then press the power button several times, then reconnect all the above components. Try turning your laptop back on. If water gets into the keyboard, the malfunction may be serious.

How to turn on the keyboard to the computer?

Go to the start menu. select Settings Accessibility Keyboard, and then enable the Use onscreen keyboard option. A keyboard appears on the screen that you can use to navigate the screen and enter text. The keyboard will remain on the screen until closed.

How to unlock the keyboard on a computer?

Unlocking the keyboard in a standard way

  • Press the Fn and F1… F12 buttons at the same time.
  • Sometimes a positive result can be achieved by simultaneously pressing Fn and Pause, the Win keys and one of the function buttons F1 F12.

How to customize the backlight on your keyboard?

To turn on / off the backlight, press the Fn spacebar on the keyboard to change the keyboard backlight modes. The keyboard backlight has three modes: Off, Low, High.

How to change the keyboard Dell Inspiron 3521 and 5521. Detailed instructions

Are the keys broken? Is the keyboard sold out? Do you want to replace it and the procedure is expensive? This article will help you replace the keyboard yourself. The replacement principle, which will be shown below, is suitable for many types of Dell laptops.

Note: If you decide to follow this guide, then the author of the article is not responsible for damage caused to your laptop in the process of careless handling of the internal components thereof. All actions you perform at your own peril and risk.

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Attention! Before you start disassembling your laptop, read the article: Before you start. Basically, these tips are suitable for all types of laptops.

Removing the battery (battery)

Turn the laptop upside down. First you will need to remove the battery (battery). In the image below, the red rectangle outlines the area of ​​the laptop battery.

The latches that hold the battery are indicated in red in the image below. Move them aside and remove the laptop battery.

Removing the keyboard

Laptop keyboards are usually fastened to the case with plastic slots. In the image below, their position is indicated in red.

Now you need to press each of these grooves with a sharp object in turn. If they snap into place, grab the keyboard in that place with your hand.

Take your time to pull the keyboard. It is connected to the motherboard by a ribbon cable. Carefully bend the strap that secures the train upward 90 degrees. Now this cable is free and the keyboard can be removed.

As of October 12, 2013, the keyboard for Dell Inspiron 3521 and Inspiron 5521 laptops costs about 35. Look for the brand Dell Inspiron 15 (3521/5521) Laptop Keyboard. YH3FC.

That’s all! Thank you for your attention and see you soon on the pages of the site itDell.ru

If your laptop does not find other WI-FI networks or the signal is very weak, then the probability of a WI-FI adapter malfunction is high. This article will help those who want to independently replace the WI-FI board on Inspiron 3521 and 5521 laptops.

Read this article to learn how to remove the DVD drive for your Inspiron 3521 and 5521 notebooks yourself. This procedure is easy. Everything is shown and told in an accessible language.

Dell Inspiron 3521 laptop after installing all updates in Ubuntu does not see wireless wi-fi networks. In this article you will find a detailed description and solution to this problem.

This article is about the main problems encountered with the Dell Inspiron 3521 laptop and how to solve them. Bringing answers to frequently asked questions. Here you will find both answers to your questions and links to articles where you can get a solution to the problem. It should be noted that this laptop turned out to be a good budget model, fully justifying its cost. However, as with any production, there are also defects from which the buyer is not insured. But if we compare with the successful 2011-2012 laptop, I’m talking about Dell Inspiron n5110, then our model does not win against its background.

This article is devoted to the issue of replacing the hard disk drive (HDD) on Dell Inspiron 3521 and 5521 laptops. The procedure itself is not complicated and after reading this article, you can remove the HDD yourself.

Turn on the keyboard backlight on the Asus laptop

One of the frequently asked questions is how to turn on the keyboard backlight on an Asus laptop. Since this type of model has a very moderate glow. Some users are not satisfied with the quality of the fluorescent element. However, the machine itself suits in terms of its parameters and quality of work.

To install an LED element, you should immediately decide on the type of lighting. For beginner electronics engineers, it is recommended to make a backlight along the contour. Since this will minimize the possible damage to performance in case of inept installation.

The rules for installing a diode tape require:

  • disconnect the battery;
  • remove all fasteners (some are submerged, and are hardly noticeable at first glance);
  • gently pull out the hard drive;
  • dismantle DVD rum;
  • release the key panel from the fasteners;
  • disconnect the display cable suitable for the motherboard;
  • disconnect the loop;
  • shoot WLAN.

The LED strip itself must be installed along the free contour of the edge of the keyboard. In this case, take into account the place of attachment of the battery or any battery that is flat enough for mounting in the case. One of the inconvenient moments of this process will be the need for a similar dismantling when replacing the feeding element.

Advantages of using a diode tape

Backlit mechanical keyboards are all based on the principle of using an LED strip. This approach was preceded by numerous not entirely successful experiments. The choice of diodes was based on the following requirements:

  • compact arrangement inside the keyboard box;
  • light weight;
  • ease of installation;
  • resource consumption;
  • convenience when replacing a worn out element;
  • requirements for the brightness of the light source;
  • resistance to multiple mechanical damage;
  • the ability to add additional colors.

The last point is important for the built-in Multi-color system. Gaming keyboards or laptop panels require contrasting backlighting. This is due to the requirements of the orientation of the gamer or tester in the process of work. The areas painted in different light colors allow you to quickly orient yourself and prevent confusion. In addition, LEDs interact harmlessly with computer or laptop systems.

Required tools

Backlit Keyboards Reviews showcases different backlit keyboard options:

  • standard rectangular;
  • gaming;
  • laptop keyboard;
  • wireless counterparts.

To repeat a similar experience, illuminating standard options without additional special effects, certain tools and materials are required:

  • LED strip (up to 1 m);
  • soldering iron;
  • batteries (in the case of a built-in backlight recharge option);
  • network cable (about 3 m);
  • adapter 2-4-pin to 1-6-pin;
  • screwdriwer set;
  • insulating tape;
  • switch;
  • stationery knife;
  • glue (for some variants with changing the keypad);
  • tester for the final check of the operability of all elements of the circuit.
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The easiest way to backlight

Attaches the tape to the bottom of the monitor or the inside of the keyboard drawer. This is one of the easiest ways to make a keyboard backlight. This method is suitable for those who are not familiar with the principles of electronics. The installed strip has a simple connection type:

  • twisted pair (similar to the Internet connection wire) is soldered to the output points of the internal connection of the diodes;
  • connection via a molex-type power connector to the hard drive;
  • the connector with the yellow marking is rated for 12 volts;
  • connector with red marking reserved for 5 volts.

Mounting can be done inside the table top, which gives a bright illumination of the surface of the keys. In this version, a switch can be attached under the surface of the table top, with which you can remove the lighting in the daytime.

Installation of LEDs in the keyboard body 760

Before installing the backlight strips, you need to draw up a diagram of all the exit points of additional elements. This applies to:

  • switch;
  • wires to the power supply;
  • connection of the console system for Multi-color.

Thus, the diagram must necessarily include:

  • exit points for additional wires;
  • location of rubber key pads;
  • points of internal fastening of all wiring, connections.

Since all the planks are connected in one knot, a thoughtful plan is needed for laying this part. So that its volume does not interfere with the installation of the panel with keys.

DIY keyboard backlighting requires some care. When installing the tape, the first task is to dismantle the housing. All fasteners must be carefully disconnected, paying attention to the possible outputs of various connectors.

In the case of a solid panel of keys, it makes sense to melt the holes for the output of the diodes with a soldering iron. For such a manipulation, it will be necessary to accurately calculate the location of the diode along the guide and the places where the keys are attached. It makes sense to attach the attached wire to the beginning of the circuit with adhesive tape to the main wires of the keyboard for greater ease of use.

A connector adapter is mounted on the wire for the power supply wires of the diode tape. We connect it directly to the power source. The backlight off button can be inserted into the exit of the boards by breaking one strip.

Where to get LED strip?

  • elastic polymer tape;
  • a row of diodes connected in series;
  • points of exit of elements of connection to power supply;
  • separation zone marked with special markings.

In the variants of the tape for the Multi-color system, there are some differences. Diode pairs of different colors are connected in parallel at some distance opposite each other. Otherwise, all the soldering (attachment) points of the twisted pair wires have a standard output.

According to the markings, one output point has 5 volts, the other 12 volts. This must be taken into account when connecting the backlight circuit to the connectors. In addition, with the option of connecting the web through a charger, it must be borne in mind that the charger must be transformer, not pulse.

Backlit wireless keyboard

The backlit wireless keyboard has its own specificity associated with the signaling element. During the addition of this version of the LED component, the following manipulations must be performed:

  • make accurate measurements of all keyboard parameters;
  • distribute on the diagram all mounting points of the LED strip at a sufficient distance from the pulse feed boards;
  • choose a reliable place for attaching the battery;
  • decide how the backlight will be turned off / on;
  • make some changes in the case for the button output.

The main goal of this process is to install the ribbon without damaging the basic functions of the keyboard. When dismantling the keypad, you must remember the main rule that applies to all other keyboard options:

It is strongly discouraged to detach the rubber key pads.

If you peel off the rubber pads, it will be impossible to reinstall them correctly. There is an additional option for mounting on a transparent backing sheet, but in some sensitive models this will lead to a complete lack of key response when pressed.

How to make a keyboard backlight

In some cases, there is a need to make additional highlighting of the work surface. Backlit keyboards can be purchased, but if that option is appropriate. If the price of such devices does not correspond to the user’s capabilities, it is enough to stock up on time and do it yourself. For such a procedure, you will need some knowledge of working with a soldering iron, connecting a diode tape.

Fix 3: change audio format

Changing the audio format on your laptop can help fix the no sound issue. Here’s how to do it:

1) On the desktop, right-click on the Volume icon in the lower right corner and click on Playback Devices.

If you do not see Playback Devices in the list you can click Sounds and click the Playback tab in the pop-up panel.

2) Under playback select audio device and click properties.

3) Click the Advanced Tab. In the Default Format section, select a different audio format, then click the Test Assign button. See if you hear any sound.

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You will need to try different audio formats to find one that works.

4) Once you find a format that works, click Apply and well Save settings.

If the sound problem still doesn’t occur, don’t worry. We have something else to try.

Check the speaker on your computer

Make sure the speaker volume is not muted. Sometimes the volume is muted and you will hear absolutely no sound. Just check the Volume icon on your desktop and drag the slider to maximum and see if you hear any sound.

Also, just take a look at the speaker on your laptop and see if there is anything that covers the speaker.

Fix 4: update audio driver

A missing or outdated audio driver may also not produce sound on the computer. If uninstalling the driver does not solve your problem, you can try updating your audio driver to make it work.

There are two ways to update drivers: manually and automatically.

Manual Driver Update. You can manually update your audio driver by searching the manufacturer’s website, find the latest and correct driver that matches your Windows OS, and install it on your computer. It takes time and computer skills.

Update Driver Automatically. If you don’t have the time or patience to manually update your drivers, you can automatically update your drivers using Driver Easily.

Driver Easy will automatically recognize your system and find the correct drivers for it. You don’t need to know exactly what system your computer is running on, you don’t need to risk downloading and installing the wrong driver, and you don’t need to worry about installation errors.

You can update your drivers automatically with the FREE or professional version of Driver Easy. But in the Pro version it only takes 2 clicks (and you get full support and a 30-day money-back guarantee):

1) Download and install Driver Easy.

2) Launch Driver Easy and click Scan Now. Driver Easy will scan your computer and find driver problems.

3) Click the Update button next to the checked audio device to automatically download the correct version of their driver (you can do this with the FREE version), then install it on your computer.

Or click Update All to automatically download and install the correct version of all drivers that are missing or outdated on your system (this requires a Pro version. you will be prompted to update when you click Update All).

4) Restart your computer for the changes to take effect.

Still no luck? Okay, there is one more thing to try.

How to fix sound on a Dell laptop

Here are the solutions that have helped people eliminate laptop sound. You don’t have to experience them all; just go down until the laptop sound works.

  • Check for hardware problems
  • Change sound settings
  • Change audio format
  • Update your audio driver
  • Reinstall the audio driver

Note. The screenshot below is from Windows 10 and the fixes apply to Windows 8 and Windows 7.

Fix 2: check your audio settings

If the sound issue persists after troubleshooting your hardware, don’t worry. You can change the sound settings. Here’s what you can do:

1) On the desktop, right-click on the Volume icon in the lower right corner and click on Playback Devices.

If you don’t see Playbackdevices in the list you can click Sounds and click the Playback tab in the pop-up panel.

3) Right click on your speaker and select enable.

4) Then select your speaker device and click Set as default to set your device as the default audio device.

5) Click OK to save your changes.

Try playing any sound to see if you can hear sound from your laptop.

Check your microphone or headphones

If you are connecting a microphone or headphones to your laptop, you should also make sure that the device is working properly.

Try disconnecting and reconnecting and see if there is sound. Or you can try another microphone or headphones and see what the problem is.

Fix 1: check for hardware problems

If there is no sound in your Dell laptop, the first step is to check for a hardware problem. Here are the troubleshooting steps:

Check the headphone jack

You should also check the headphone jack if you’ve connected headphones to your laptop. Look inside the jack and see if there is any damage, dust or lint that could interfere with the operation of the headphones.

If so, clean the jacks with a cotton swab or brush.