Laptop Screen Repair

Cracked Laptop Screen? Screen Dim?

Troubleshooting overview

Screen issues are usually easy to fix because they fall into one of two categories:

  1. Cracked laptop screen or has lines across it.. The screen is smashed.
  2. The screen is dim.

The solutions are usually very simple:

Damaged Screen:


Can a laptop screen be repaired?

Repairing a cracked laptop screen or one which smashed is pretty much impossible and not something I recommend you attempt. So can a laptop screen be repaired? Well, unfortunately the answer is no the screen is not repairable and you should always just REPLACE IT. 

Most screen replacement is straight forward with a few exceptions, following the guidelines found within the 8 steps to taking apart any laptop should give you the confidence to replace any laptop screen. For generic instructions that will apply to most makes and model of laptop please see the next page on laptop screen replacement.

How easy is laptop screen repair / replacement?

It is fairly simple to replace a laptop screen, the first few times you do it you may be a bit unsure but if you follow the guide I have written in the laptop screen replacement and watch the video I have created you should find it easy enough.  In the video I take apart 3 different types of laptop to show you (once again) that there is a PATTERN you can follow when repairing a laptop.

Remember there is a PATTERN between the different manufacturers

Each brand / manufacturer has slight differences but on the whole they are put together in a similar way, so similar in fact that removal of a bunch of screws and unclipping the screen surround will become second nature after you have done a few.

Here a few questions that I get asked quite often (please remember that I show you the steps for laptop screen replacement/repair in the next page):

Question: What size screen and type etc can I use to replace my laptop screen?

Answer: Like other components in a laptops they usually have a sticker on them with their part number.  You can Google this number to find a replacement part.  There are COMPATIBLE screens too and these will be fine to use, the person selling them usually indicates that they are compatible screens.

Question: Can I replace any parts of the screen rather than replace it?

Answer: You can replace the VGA cable (see the next page) and the bulb (I do not recommend you replace the bulb as it is too fragile, you may as well just replace the whole thing).  You can also replace the metallic arms which hold the screen in place but the simple and short answers is NO.  I personally always replace the screen and bill the customer then move onto the next job, time is money, move on.

Question: What are the laptop screen price and costs?

The price of a replacement screen varies by size and type.  Replace like for like screens, don’t upgrade, it isn’t worth the hassle.  I originally wrote Tekmoz with the idea that people could be able to take my training and use the information to earn money from the skills they can learn, with that in mind you should price your labour charges to what you want to earn and put the price of the replacement screen on top of that (remember to include your postage and packing costs). I am based in the UK and I normally charge my labour at between £35 and £65 (in U.S dollar that’s about $60 and $100). Check the local competition for competitive prices and set yours accordingly.

Dim Screen:

A dim screen is usually caused by a faulty power Inverter (also called the FL Inverter) or the cable that leads into it. When you remove the screen you will see the FL Inverter attached (usually by a single screw), here is an image of one:

FL Inverter

Here’s how to test a dim laptop screen

Plug in an external monitor and power the laptop up. (I recommend you have a monitor in your toolkit if you are repairing laptops for customers).

If you see a normal picture then use the laptop screen replacement guide to remove the screen cover. The chances are is that the FL Inverter has failed or has a loose cable attached to it.  The FL Inverter is very simple to replace, it is held in usually be a single screw or occasionally stuck with glue. 

If you come across an FL Inverter which appears to be attached in some bizarre when then you can always find many YouTube videos or blogs that will show you exactly how to disassemble your laptop screen and remove the FL Inverter.

This isn’t a Tekmoz official video but I have a massive respect for the guys from Podnutz and they explain how to repair an FL Inverter very well in this video.

Type in the specific model of laptop into a search engine along with the words ‘screen replacement tutorial’ or something similar.

This may sound like cheating but it’s what all technicians do so I see no reason to advise you otherwise.  I have been repairing laptops for many years and I still do this on the odd occasion.  However, having said that you should have no problems whatsoever replacing any laptop screen having followed my guide. If you have any problems or questions then please get in touch and I will do my best to assist you.

  1. Check the cable to the inverter for a loose connection.
  2. If you have a spare that you know works then swap them over and power the laptop up.  If it works then order a replacement part.

Again, Google for the part number which you will find on the inverter and choose the best source based on reputation and price.  Many sellers on places such as Ebay are cheaper than trade suppliers.  For this reason my own advice is to go with whatever you think is best  – but be aware that trade supppliers are not always the best option!

Typical faults with a laptop screen

I get a lot of emails with very specific problems and makes and model of laptop.  One of the core things I like people to understand is that the purpose of Tekmoz is to show you that can apply a set of rules to almost ANY MAKE, ANY MODEL OF LAPTOP.  The steps for repair or replacement are not always the same but they are very similar.  But below are a typical list of questions and problems that I have answered.  My answers may help you to fix a specific problem or if you get stuck, but as usual please feel free to ask a question:

Question: My laptop screen is dim, I can see the picture but it’s very faint, what’s the problem here?

Answer: Before assuming it is a faulty part, check your function keys for a brightness control…this does happen that the user has accidentally turned the brightness down too far.  Also check that there is no FN+Function Key combination that will turn the screen off.

Question: How can I tell if it’s the FL Inverter at fault or the graphics chip?

Answer: The simple answer here is to put an external screen onto your laptop as shown above, if you see an image upon the external monitor then it’s the laptop screen or Inverter at fault. On the other hand if you put an external screen on (and make sure that you have either rebooted your laptop or pressed the appropriate FN+Function Key to show dual displays) and you still cannot see an image, then the graphic chip is suspect.

Question: My screen keeps going dim and then bright again at random times.

Answer :This is most likely a loose wire on the FL inverter or the VGA cable is loose. Test with an external screen to begin with – if it doesn’t keep happening on the external monitor then it’s not the graphics chip. In this instance remove the screen bezel and ensure that the cables to the FL Inverter are secured properly. If they are definitely secure and the problem persists and the image is still fine on the external monitor then next you must test the VGA cable. Use the laptop dissemble guide to remove the keyboard where you fill find one end of the VGA cable, the other end is plugged into the rear of the screen, my experience is that the end under the keyboard is more likely to be the problem – further to this it usual happens after somebody has attempted to repair the laptop beforehand. Check your problem persists, if it does then remove the screen itself and check the other end of the cable.

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