can a broken lcd screen be fixed made in china
Mandy, ETS is obviously a company that you are connected to and this could easily be taken for spam. I think we can make an exception at this time since you are asking a good market research question that may be useful to many.
Having checked out your video, I personally will not use the aftermarket screen as a replacement for my X. It just doesn"t have what I expect for a $1000 USD phone. I recognize that $300 USD for a replacement is hefty but the aftermarket screen does not appear to have the quality that I would expect for my phone.
Broken screen replacement service is provided from thousands of repairs stores and phone parts wholesalers worldwide, iPhone of which are mostly engaged in. So how to purchase reliable LCD screens among so many quality grades from China suppliers? Let me firstly elaborate on the quality grades of the iPhone LCD digitizer assembly that most repair stores and traders used to replace the broken ones.
According to the investigation, 90% of the Chinese iPhone LCD screen suppliers are found selling third-party manufactured screens and seldom sell genuine original LCD screens. Therefore, if your phone screen is broken, there would be a high chance for your screen to be replaced with a non-original one. Why? Maybe the cost and quality are relatively competitive, so why not?
As known, Foxconn is authorized to assemble iPhone, so there are some original iPhone LCD screens leaked from the assemble factory. And there are brought out from the factory for replacement. However the price is definitely high and still, some people care more about the quality of the screen than how much they cost, so for this group of customers, the Original Quality of LCD digitizer assemblies are preferred.
For some LCD digitizers, the LCDs are still working while the front glasses are broken, which can be recycled. Some factories recycled these broken screens by removing the broken front glass and attach a new one, then the LCD digitizer assembly would be new again, which is what called refurbished. Brand new original LCD screens are limited, and the refurbished ones can replenish the shortage of the new original LCD digitizer assemblies, for their quality would be more stable than the third-party manufactured.
Some Chinese factories purchase the original single LCD display, not compete LCD screen from the original factory, and then attach high copy front glass, backlight, etc, materials into a complete LCD screen, which quality is not stable and the display color is slightly different from the ones with high copy backlight. Well, their price would be cheaper and loved by many repair shops and wholesalers.
Under the shortage of original LCD screens, many Chinese factories begin to produce the high copy LCD screen. The stock and supply are getting less and less since about 2015, which leads the price goes higher and higher. Therefore the Chinese manufacturer starts to produce LCD screens with high copy raw materials. With competitive prices and good quality that meet most iPhone users’ needs, they are also popular among many wholesalers and repair shops.
With the premium quality of LCD and OLED screens tested strictly, we’ve helped many clients enlarge their markets worldwide. If you wholesale the LCD digitizer assembly or retail them in your repair shop, more information and sample are supported for your reference, please do not hesitate to contact us or leave your comment to discuss more.
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Maybe your significant other tossed your phone off the balcony after discovering flirty texts with a certain coworker, or maybe you were just blackout drunk and dropped your phone on the club’s tile washroom floor while taking a shameless mirror selfie. Either way, your mobile’s glass screen likely looks like a drunken spider’s web.
Luckily for you, smartphone repairs in China are both affordable and fast. But before you venture off to your city’s electronics sales and repair market, we encourage you to browse these six helpful tips for repairing your phone screen:
As with damage to just about any electronic product, knowing the extent of the destruction will go a long way towards ensuring your trusty repairman doesn’t try and pull a fast one by over-quoting or overstating the damage.
In the case of phone glass and the LCD – or more recently AMOLED – screen underneath, it helps to know whether just one, or both, of these elements needs replacing (particularly so you can better estimate the cost).
While broken glass on the front of your mobile is obvious and easy to diagnose, a damaged screen (the part that actually displays all the programs and interface) can be a bit trickier to identify. Look for black spots, discolored areas, new lines and out-of-place patterns on your screen, as any of these may indicate a problem with the screen. Naturally, a totally black screen is a pretty good indicator that something is amiss.
One way to test your screen is to hold down on an app on your phone’s ‘desktop area’ until it starts vibrating, allowing you the move the app to new locations on your screen. Move the app to all parts of your display, if the app is unable to reach a certain area, this is a good indication that you’ll be fixing more than just broken glass.
From our experience, this may very likely be the most important step of all. When having your device"s screen or glass fixed, be sure to show the person doing the repair that all of its key components are in working order. In particular, be sure to demonstrate that both your front and rear cameras work, as well as the speaker and microphone.
We cannot count how many times we have heard of a phone being returned after a repair only for the owner to discover that the phone’s microphone (key for, you know, speaking on the phone) or cameras are no longer working. Also from experience: most repair people are unlikely to take your word that your camera was fine before you handed it over to them.
This should probably go without saying, but here we go anyway: having your mobile device repaired by someone other than a company technician from your phone’s particular brand will likely (like basically 100 percent) result in your warranty being voided.
Not every repair shop will give you the option of watching your phone’s crushed glass be replaced. This is because many smaller shops, particularly in electronics markets, will have your phone sent to an offsite repair area and tell you to come back in a few hours to collect it.
If possible, try and find a shop that will complete the repair in front of you. The main reason we encourage this is because we have heard several unfortunate stories where costumers have had their fully-functioning phone battery swapped out for one that can only hold a two-hour charge. Sad!
The price of having your phone’s glass or LCD screen replaced will depend greatly on the make and model of your phone, the honesty of the person fixing it and – like all things in Asia – your bargaining skills. If your local smartphone repair person wants RMB300 to replace your iPhone 6’s shattered glass, lowball them and offer RMB150. From our experience, repair people seem more inclined to budge on price when it comes to older model phones, meaning your brand new iPhone Xs Plus or Huawei P20 will likely have a higher price point and less discount wiggle-room.
Finding a good repair shop with honest staff who do repairs at a high quality and reasonable price can sometimes be difficult. If you manage to track down a good phone-fixing location, be sure to recommend it to your friends to save them the potentially costly and annoying trial-and-error process when having their glass or screen replaced.
Unfortunately, in most cases, you cannot fix a broken TV screen. TV manufacturers do not sell screen replacements, and there is no secondary market for used screens. That’s because the screen is the most expensive part of the TV, by far. Replacing it would cost more than buying a new TV!
In many cases, your local electronics or TV repair shop won’t even consider working on your broken TV screen. They know that it’s just not worth their time.
If you bought your TV recently, chances are incredibly high that it came from China. Specifically, the BOE Technology factory in Hefei, the capital of China’s Anhui Province.
The BOE factory, where most US TV screens are made today, is almost a mile long and cost about 7 BILLION dollars to build! Sony, Samsung, LG, Vizio, etc. all buy their TV screens from BOE.
“Liquid Crystal display screens are made by putting two thin sheets of glass together. On one of the sheets transistor “cells” formed by first depositing a layer of indium tin oxide (ITO), an unusual metal alloy that you can actually see through. That’s how you can get electrical signals to the middle of a screen.
Then you deposit a layer of silicon, followed by a process that builds millions of precisely shaped transistor parts. This patterning step is repeated to build up tiny little cells, one for each dot (known as a pixel) on the screen. Each step has to be precisely aligned to the previous one within a few microns. Remember, the average human hair is 40 microns in diameter.”
This is the number one reason your TV screen is so costly – they are incredibly challenging to build, and as a result there are only a few companies in the world that make them.
I’ve also heard that only 1 out of every 3 TV screens pass testing at the END of the manufacturing process. That means 2 out of every 3 screens made are worthless!
The screens are made in China and then have to be shipped across the world to be sold in the US. The cost to ship them is high, and a lot of damage can happen during the journey.
So the complexity, and shipping both contribute to the high cost of TV screens. It’s why no one sells the screen separately, it just doesn’t make financial sense.
If your TV screen has an imperfection, discoloration, lines, streaks, spots, etc., then there is a good chance that your warranty will cover it (if it’s within the allotted time period). Most TV warranties are in place for the first year, and they cover these types of manufacturer defects.
And the even better news here is thatthe majority of issues you’re likely to encounter with your TV will happen within the first year (when you’re covered by the manufacturer).
You can always try selling it. Your broken TV isn’t worth much, but to the right person, it’s worth something. Someone who knows what they are doing will take your TV apart, and sell off each individual piece.
Technically, you could do this yourself, but it’s time consuming and you risk damaging the parts. I wouldn’t bother. Instead, try listing the whole TV for sale. Getting something for a broken TV it is better than nothing.
If it turns out no one is willing to buy it, you can try listing it on those same marketplaces for free!Tons of people usually respond when they can get something for no cost, even if it’s broken.
Find a local electronics recycler. There are a lot of these out there. You can look up the closest one to you using Earth911’s website. Type in “TV” and then your Zip Code to find the nearest option to you. Once you find the closest location, you just have to drop off your TV.
Local electronics stores typically recycle products that they sell. A great example of this is Best Buy. They have a nationwide recycling program. But keep in mind, they will charge you a small fee!
Your town likely collects e-waste. Check out your town/cities trash website and see what their policies are for electronic waste. Some towns have special pick up days, others have drop off locations. I would just call your city’s public works department and ask for a place to recycle or dispose of old electronics.
Buy a TV screen protector. You can buy a screen that covers your TV and protects it against damage, and many are waterproof! These provide great added protection from possible bumps and contact with liquids from pets and children.
Mount your TV on the wall.This way your television is up off the ground, and out of reach. It won’t stop your kids from throwing a toy at it, but at least they can’t bump into it, or accidentally knock something, or someone into it.
Don’t allow video games. This might sound harsh (especially for the kids), but I’ve heard too many stories of Nintendo Wii controllers being accidentally thrown at the TV. If you don’t hook up a video game console to your TV, this can’t happen.
Most TV repair shops won’t even bother trying to fix a broken screen. In the end, between a screen replacement and the repair costs, you’d spend the same amount for a brand new TV!
If your TV is cracked or damage because of something you did, your warranty is unlikely to cover it. In that case, consider selling your broken TV or disposing of it.
“Original” screens are those containing LCDs manufactured for Apple. “Copy” screens are compatible replacements entirely designed and manufactured by third-party companies not associated with Apple.
LCD display panel can have poorer resolution (i.e. looks “coarser”), worse brightness, contrast and vibrancy and reduced refresh rate amongst other problems.
Changes in specification from original can result in battery and performance issues. Certain badly-engineered screens could even damage the backlight circuitry.
Customers who bring their iPhones to us for a screen repair are offered two choices of replacement- an original or a “copy” screen. The most common response is “Is there a difference- and which one would you recommend?”
Originals are those screens containing LCDs that were manufactured for Apple. So-called “copy” screens are compatible replacements, but designed and manufactured entirely independently by third-party companies, typically in China.
Our answer is simple- the original screen is the one we’d go for ourselves, every time. Some people think we make more money on them, but this isn’t the case. We recommend originals because they’re far higher quality and the price difference is fairly small.
We’d rather only fit original screens. The only reason we don’t is that many people will shop around and choose purely on price. As such, we need to offer the cheaper copy screens to remain competitive and avoid losing these customers. In some cases, they didn’t even know there was a difference in the first place- especially since it’s not in some shops’ interest to draw people’s attention to the issue!
This may well be the worst copy screen we’ve ever come across. As a result, the unfortunate customer has ended up paying twice to have their screen replaced- we’re sure that had they been properly informed, they would have chosen an original in the first place.
While the difference in price between copies and originals can vary across devices, it’s generally around £10 – £14 extra to have an original screen fitted. This really isn’t a lot considering the improved quality and reliability.
We compare our prices to our competitors- and we know that we come out of it favourably. While we have to offer copy screens to remain competitive, we always advise customers to go for the original.
When you’ve spent- directly or indirectly- several hundred pounds for an iPhone with a Retina display, it doesn’t make sense to replace it with a lower-quality screen that can make a £400 phone look like a £40 one! Not only that, but you’re likely to have fewer issues, and a longer-lasting screen.
There’s nothing stopping any random person without training or experience opening up a smartphone repair shop. As a result, the industry is full of companies with little skill or experience who are only interested in getting hold of your money and installing the cheapest parts they can find.
Many- if not most- don’t even acknowledge the existence of copy screens, let alone explain the difference to the customer. Hardly in their interest to do so if they only fit cheap, low-quality copies. Some of them can hardly be blamed- they know so little, they’re not even clear on the differences between OEM, non-OEM and copy displays themselves! Others can be more deliberately misleading… and some outright lie.
Generally, these shops are looking for the cheapest price on replacement screens.. When offered a copy at a half or a third of a price of the original, they’re going to go for that. That might be fine if they offered the customer a cheaper price- what we disagree with is selling “supermarket beans” (i.e. the copy screens) at “Heinz beans” prices!
Heading towards the “blatantly fraudulent”, we’re aware of companies that shamelessly fit copy screens while claiming them to be original. Worse, they’ll take your broken original screen and sell that to a recycler for more than they paid for your copy!
Obtained or manufactured “off the clock” via the same production line that produced them for Apple- in some cases, from the stockpile of parts that didn’t meet Apple’s standards, or
Apple tightened up their supply chain around 2015, which reduced the number of screens available for repairs and increased their price dramatically. A lot of companies went bankrupt, and Chinese manufacturers responded by making their own “copy” screens from scratch. At first, these weren’t much cheaper than the Apple ones, but the price soon fell.
We should be clear that- despite the name- “copy” screens aren’t direct copies of the Apple originals. Rather, they’re compatible replacements that have been designed from scratch and- as a result- vary in some respects that have an effect on usability and quality.
One of the most important differences between an original and a “copy” screen is how the digitizer (touch sensor) is designed. Apple has it manufactured as part of the LCD itself, whereas the copies have it on the glass.
Although there are only a small number of manufacturers of the bare LCDs themselves, these are then bought by countless other companies who add the remaining components needed to turn these into a complete working screen. As a result, you could easily end up with an LCD from the best “copy” manufacturer, but the digitizer/touch (as part of the separately-manufactured glass) from the worst.
There are countless digitizers out there, and you can only take the supplier’s word that the quality is good. Many ship good ones at first, then switch to cheaper parts to make more profit. This is particularly bad with the iPhone 6S and 6S+, since Apple moved the chips responsible for touch processing onto the LCD itself. As a result, you’re not just getting a copy screen- you’re getting copy chips too.
The performance specification (power drain, etc.) of most copy screens isn’t identical to the originals. As a result, they can drain the battery more quickly and mislead the operating system which was optimised for the original screen design.
It’s even possible that this mismatch could damage your backlight. We do a lot of subcontracted repairs for less-experienced shops, and get backlight repairs in almost every day. We’ve had cases where we fixed the circuit, fitted the new copy screen to test it, and had it break the circuit again!
Copy screens can disrupt the touch ID fingerprint reader. With the 6S, 6S+, 7 and 7+, the home button- part of the 3D touch- is part of the screen assembly. Frequently the home button flexes on aftermarket designs don’t work properly and stop the touch ID working- annoying if you use it to unlock the phone or log in to your bank.
We’ve seen many lift away from the frame that holds them in place. This usually results in the flex cable getting torn, and the screen needing replacing. You don’t even need to have dropped the phone- this often happens through general everyday wear and tear.
That brings us to another major issue with the copies. When you drop an Apple original, the glass often breaks, but if the LCD itself is intact, you can continue to use it until it’s fixed. With the copies, the touch/digitizer is on the glass and stops working when that’s broken. Even worse, the LCD itself is more likely to break due to the thinner and more fragile glass.
We’re not convinced this will happen, since Apple recently changed their repair policy to accept iPhones with third-party screens. However, it is possible that copy screens could be stopped from working via an iOS update, since those make a number of security checks.
The rumor that the China made iPhone LCDs can’t survive the upcoming iOS updates existed for quite a long time which aroused panic among repair shops. Many repair shops who want to use/have already used these screens to compete with authorized repair are wondering, will Apple brick these iPhone to kill the third party repair? We ETrade Supply don’t think so and here is why:
Do you still remember that users sued Apple for bricked iPhone due to "error 53"? The situation is almost the same except only few people have let their home button be replaced by third party repair shops. How many China made iPhone LCDs have been sold? We don’t have the exact number. However, from what we know, the number should be over 1 million pieces at least. Will Apple brick millions of iPhones just to kill third party repairs?
Same rumors for the 4/4S screen before. The OEM LCDs for 4/4s died out for quite a long time, all screens supplied were China copy one since 2 years ago. Not a case of bricked phone/unusable have showed for the updating to the new iOS system.
The most possible reason that this rumor has been created—is just to cut the price of the China copy iPhone LCD and more possibly-- the demand for it.
A week before the Apple event in March 2016, the rumor was “China made iPhone LCDs can’t survive in the coming iOS 9.3 updates”, the price of these LCDs dropped significantly and everyone was holding their orders, waiting to see the result. Within one week, the price has dropped around $10/pc. After people found out that they did survive, the price increased again and here came the rumor “the China made iPhone LCDs won’t survive the iOS 10 updates”.
Since last June, more and more repair shops have accepted the China made iPhone LCDs because less OEM screens are supplied. A large certain amount of demand of OEM iPhone screens has been moved the China made ones. The rumor that “the China made iPhone LCDs won’t survive the newest iOS updates” will sure bring some demand back to those crappy OEM screen which have been used for quite a long time/ refurbished for multiple times.
The rumor is “ALL the China made iPhone LCDs won’t survive the iOS 10 updates”, not only for 5 series. As we all know, there are already China Made 6 screens in the market. Those who stocked large amount OEM 6 screens will be happy to see people still paying high price for the OEM 6 screens for quite a long time.
The supply chain of cell phone replacement parts is sophisticated, unclear and without any standards, which make it look more like gambling. Find a reliable long-term relationship partner who can grow with you is the key to success for repair shops. If you have any questions regarding the China made LCDs, please leave your comment below!
So, is it possible to repair your broken screen or need to replace it with a new one? Here"s everything you need to know about fixing broken smartphone screens.
We’ve all thought of all those crazy ideas of repairing a broken phone screen when we mistakenly smash our phone screens. Had it been one could repair a phone screen only with some chemical components (say Superglue) purchased from a local store, no one would have time to visit the repair center.
However, based on how modern smartphone screens are manufactured, it’s impossible to repair but replace them. After all, it’s not quite easy to restore broken pieces of glasses without passing through industrial chemical processes.
Getting straight to the point, a broken phone screen cannot be repaired but replaced. That’s because the phone screen is made of glass materials that cannot be joined together again once shattered, without undergoing industrial processes.
And, talking about melting a broken screen together by an industrial process, it cannot the applied to a broken phone screen unless you want to damage it totally. That"s why your broken phone screen is recycled to make another spare part once replaced.
There’s also a notion that the touchscreen is different from the visual display. Yes, that’s true as the screen is made up of two layers – the Touch and the LCD.
On many older phones, a technician could replace the touchpad easily without affecting the actual screen (LCD). That"s because older phones screens are split into two layers as mentioned above. However, it"s another story on modern phones.
Modern phone screens have gotten better and better over the years, and now, these two layers cannot be separated. That means: if your phone screen cracks (even slightly), you cannot change the touch panel alone. You would have to change the whole screen.
Was that a stupid and expensive move? Probably not. By fusing the digitizer (touchpad) with the LCD, manufacturers have been able to make thinner and robust screens to use on smartphones. Had it been you can separate your phone screen, it probably would have lacked special features like Gorilla Glass, high touch-sampling rate, and others.
Another advantage is, by fusing the screen with the touch panel, your phone screen would still respond to touches accurately, even when it"s broken. With that, you could choose to continue using your phone for a while after breaking its screen. That"s what you don"t get on older phones with separable displays. Even a slight crack could render the touch screen useless.
To sum up, it’s impossible to repair your broken screen, and you can’t replace only the touchpad if that’s what’s broken. Once you break your phone screen accidentally, you’ll need to replace the whole screen from an authorized repair centre. That"s how to keep enjoying your phone after breaking its screen.
To replace your broken phone screen, all you need is to visit the cell phone repair centre where the technician would access your phone and fix the broken screen.
To replace your cracked phone screen without recurring problems, we recommend you visit the official service provider for your brand. They’re the best place to get genuine screen replacement parts. Otherwise, you may end up with various display problems after fixing your phone screen from an unauthorized repair shop.
Meanwhile, the cost of screen replacement service from the official service provider may be reasonably higher than the local shops in most cases. That"s to be expected, given the quality of spare parts, professionalism, reliability, and warranty you’d get afterward.
Do you have a TECNO, Infinix, or itel smartphone with a cracked screen? You’ve taken the right step to be here. Carlcare is the only service provider to repair smartphones and other gadgets from these brands.
We"re the only official repair centre to get the factory-made screen for your TECNO, Infinix, and itel devices, as well as a specialized technician, to fix it for you in the shortest possible time.
Now that you know it’s not possible to repair your broken TECNO, Infinix, or itel phone screen, all you need to do is walk into any Carlcare-accredited repair shop near you for screen replacement. You can also book an appointment with us to enjoy our priority service and reduce your waiting time and stress when you visit our centre.
Cracked or broken mobile device screens can be costly to fix, but a few inexpensive do-it-yourself strategies can eliminate a repair shop visit and salvage your tablet or phone.
Third-party repair shops typically replace glass on a tablet for about US$100-$200, depending on the model. Replacing the tablet’s touchscreen can cost $50-$75 extra.
Replacing the cracked glass with a functioning touchscreen is much cheaper. You usually can find suppliers online for $6 to $20 for a phone. A tablet replacement digitizer can cost about $50 or more if you perform the work.
It is relatively easy and cheap to replace the glass on a phone once you get the hang of it. Tablets are a bit more involved because of the larger size and added components.
Tools might require an additional monetary outlay if you do not have a well-functioning workbench. Depending on the device involved, you need a phone opener pry tool, little tweezers to deal with small cables inside, a Torx screwdriver, flat-head screwdriver and a precision screwdriver kit.
Add to that list either a variable hair dryer or a heat gun to soften glued phone parts. Also add scissors, double-sided adhesive tape, canned air and work gloves.
It is first things first when it comes to fixing cracks on a smartphone’s screen. Often, the actual screen is not cracked at all. You may have installed a glass screen protector when you purchased the phone.
The film covers can become cloudy or scratched. They usually help absorb shock from items dropping on the tablet to lessen risk of cracking the touchscreen glass under it.
When the culprit really is a damaged screen, choosing one of the next three approaches can help you solve the problem. You might be able to repair the damage rather than replace it.
For instance, is the screen clouded or otherwise damaged from your mistaken use of harsh cleaning fluids or coarse paper towels to clean the screen? If so, there is a fix for that.
Is the screen merely cracked or full-out broken — as in massive spider cracks from being smashed? You can cure a cracked screen on a phone or tablet more easily with Sugru, a commercial product. A fully cracked screen on either type of device is a solid candidate for a screen replacement.
If your phone or tablet screen shows signs of cleaning abuse or wear from heavy handling, return its condition to nearly new with an oleophobic coating kit. This is an oil-repellent coating that protects the screen, along with adding smoothness and reducing fingerprints.
The coating, a thin layer of fluoropolymer-based solids, is similar to Teflon and is bonded to the glass. You can buy the coating kit from a variety of electronic supply stores and online outlets.
Prepare a wiping finger. The oleophobic coating’s liquid solvent evaporates very quickly when applied, so once you start, work quickly. Wrap one finger with plastic wrap or a sandwich bag. Use this finger to rub the coating liquid onto the screen.
Apply 10-15 drops of the coating to the screen’s surface. If the phone or tablet screen has a large surface, apply 10 drops to a portion of the screen, working on one portion at a time.
Wipe the screen dry with a clean microfiber cloth. Then give the coating time to dry. Do not touch the screen for 8-12 hours to allow the coating to bond to the surface.
If your only complaint involves tiny scratches and cracks on a smartphone screen or a tablet glass, there are remedies that work with varying degrees of reliability. You can use a household eraser pad or an actual pencil eraser.
Pencil erasers also work reasonably well in making scratches disappear. Simply rub the scratch left and right with the eraser for about 60 seconds. Then rub it up and down for 60 seconds.
Does using toothpaste to fill in the cracks really work? I put that fix in the category of more “mythful” thinking, but I know people who swear that this method is a cheap fix that works.
Sugru is a moldable glue kit for repairing rather than replacing cracked screens. Actually, the product was not created with phone and tablet repairs in mind. Its intended purpose is more in the line of general repairs where bonding surfaces together and filling surfaces are needed.
Depending on how badly the screen is damaged, it can be a good solution for cracks that spread from the phone or tablet screen’s edges. However, for massive cracks that spread over the entire screen — as spider cracks tend to do over time — it will be a short-term fix at best.
If your phone or tablet screen has suffered more serious damage, full scale surgery is the only option other than getting a new device. Repairing the device’s LCD screen is a complicated procedure due to the compact internal design.
The repair process involves completely dismantling the phone or tablet’s outer casing. It is particularly easy if the replacement screen comes with a top frame.
Otherwise, you may have to seal the layers to avoid loss of structural strength and moisture/dust protection. You can use either sealing pads for the size of the particular device at hand or double-sided sticky tape. A simpler solution for phone screen replacement is to use B-7000/T-7000 glue.
Before you roll up your sleeves to get started, take one huge safety step. Buy and use a static wristband and a static guard mat. This will ensure against accidentally frying any electronic components while disassembling and reassembling the devices. Disconnecting the battery is not always a guarantee that static discharge will not happen.
The first step is to tear down the device so you can assess the extent of the damage and determine what screen parts to order. Locate the model number for the LCD screen. Use this number in an Internet search to find a replacement screen.
The part or model number usually is printed on a label adhered to the sensor cable attached to the screen. You can access this cable after you separate the screen from the rest of the unit. Carefully disconnect the cable connector from the backside of the screen along the edge.
Step 2: Loosen any stuck-on cabling that is now exposed, like the camera cable. Then remove cables if the clasps are exposed. These cables simply slide out of any exposed sockets after clasps are released. The tape-style cables are often held onto the frame and parts by adhesive, so tug gently to release.
Step 3: Unscrew the Phillips or Torx screws that hold the motherboard-containing back frame to the LCD-containing chassis and place the screws in a bowl for safe-keeping. Then separate the back frame from the chassis by gently and carefully pulling the two apart.
Step 4: Remove any further cable assemblies that have become exposed by the separation of parts. Maintain visual cues as to which cable to reattach where. For example, place them on the work surface face-up in the order of removal. Or take photos with a digital camera or smartphone.
Step 5: Remove the LCD-containing chassis from the front frame or bezel and glass assembly by unscrewing a second batch of screws. Store the second set of screws in a second bowl. Remove any further parts such as the camera.
Step 6: Don’t touch the LCD face. Separate the existing, damaged glass from the bezel or front frame by waving the heat gun over the adhesive join and pulling apart. Wear gloves here because the process involves further breaking the glass.
Tip: Be patient while the heat gun loosens the adhesive and be careful not to break the bezel or front frame while removing the glass. You need the bezel intact.
Step 1: Attach fresh two-sided tape to areas of the bezel that have lost their stickiness. Use the existing adhesive where possible. Do not allow tape to overlap the visual part of the glass.
Step 2: Look for any foam padding or seals and reattach. Do not touch the inside of the glass. You won’t be able to get rid of the fingerprints after assembly.
Step 3: Thread the digitizer cable and remount the new digitizer glass to the bezel by firmly pressing it into place. Then remove any dust from the LCD and glass with canned air.
You may have to assemble and disassemble a few times. The two sets of screws use similar holes. It is easy to insert the initial set of screws into the wrong holes. You will realize that only when the second set does not fit because you already used the hole.
Replacing damaged touchscreens and digitizer panels is not rocket science, but the process does require careful attention to details. Following visual guides and screenshots can make the difference between initial success and having to make second or third efforts.
Ever had your TV showing nothing but a black screen even if the audio was working? Unfortunately, that’s a common issue with low/middle-end LCD/LED TVs these days… Even more frustrating, this issue often comes from a rather tiny and cheap component that can be easily replaced. Most common issues are:
One of my relatives had this exact symptom happening all of a sudden. This problem on low-end TVs often occurs within the first couple years. As the repair costs for that kind of TV is pretty low, considering repairing it yourself might be a good idea!
The first step into repair is to find the root cause of the issue. As backlight failure is a very common issue, this is the first thing to test. To do so, the easiest way is to power on your screen, put a flashlight very close to it and check if you can see the image through. The image would be very dark, like turning the brightness of the screen very very low.
That implies disassembling the TV to access the backlight which is between the LCD screen in the front and the boards in the rear. In my case, with a Samsung F5000, I had to process as follows:
First we have to remove the back housing to reveal the boards (from left to right: main board, T-CON, power supply) and disconnect the LCD panel from the T-CON board.
Note: Older TVs have neon tubes for backlight, which is thicker and less exposed to this kind of failure. LED backlight is the most common thing these days, but do not mistake an LED TV with an OLED TV. The first one is a classic LCD panel with a LED backlight, whereas the second is an OLED panel that doesn’t need any backlight as it is integrated in each pixels (making the spare parts much more expensive by the way).
As we can see, the backlight system is made of 5 LED strips. First thing to do is look for burnt LEDs. Most LED backlight systems have strips set in series, meaning that if one of the them fails, all the system goes dark…
Using a multimeter, we can confirm that the strips are indeed set in series, so now we have to test each strip individually. Professionals use LED testers such as this one (about 40$ on amazon) but as I didn’t had one at the time, I decided to make one, McGyver style!