New Way to Refurbish Samsung S6 Edge/S7 Edge LCD Assembly

It is difficult and significant to refurbish S6 Edge/S7 Edge LCD digitizer assembly compared with S6 and S7 LCD, because the refurbishing technology and success rates are not mature and stable at present.

S6 Edge cracked screen

But we recently found a new way to increase product yield and the success rate for refurbishing S6/S7 Edge curved screen.

First of all, we need to know the difficulties to refurbish the curved display screen.

  1. Curved screen can not be directly operated at hot plate;
  2. After heating, cutting technique can not be used to separate LCD , or lcd leakage will appear;
  3. The cutting force is difficult to control which may result in LCD scrapped.

In consideration of those difficulties, we found new measures to refurbish the curved display screen, S6 Edge/S7 Edge. Six steps are needed as following:

1.Dismantle front housing: Put the lcd screen into the naphtha for 10 ~20 minutes. Use the card to separate the frame directed from the middle to the edge. Take good care of the flex cable in case of the damage in the process.

dismantle front housing

2. Dismantle Glass cover: Use a blade to open a small gap between the digitizer and glass, to make room for the card which will be used to separate the two in the freezer. Put the screen in the freezer for about 60 seconds. Then push the card into the gap. Please be aware that the lcd screen must be 100% attached to the sink bottom of the freezer, because only the bottom area can guarantee the lowest temperature of 140 degrees F. If the glass cover is broken, we need to start separating from the side where the glass damage is the smallest, and then to the rest gradually.

dismantle glass cover

3. Remove the excessive glue: We can use the # 833 glue to slowly remove it with the help of a plastic card. If the glue is very sticky and hard to be cleared, please cover a cleaning cloth with #833 glue onto the lcd to have the glue slowly dissolved.

Remove the excessive glue

4. Laminating OCA and New glass cover: Tear off the protective film and stick it to the other side of the OCA,This will make it more correctly to align the OCA to the glass. Place the front of the OCA to the same area on the glass, and laminate it with vacuum laminating machine for one minute.

laminating oca and glass lens

5. Laminating LCD and Glass Cover: Wash the LCD again with naphtha(if conditions allow, you’d better clean it at clean room to avoid dust and impurities), then laminate the lcd and glass cover with Vacuum laminating machine.

lamination is finished

6. Vacuum removing bubble: After laminating the lcd, a few small bubbles will still exist, using vacuum remove bubble machine for about 15 minutes, then you get the fully good lcd assembly.

bubble remover machine

From the above six-step, refurbishing the curved lcd is not so difficult as imaginary, if your refurbishing equipment is complete, just do as the instructions, refurbishing S6 Edge/S7 Edge LCD screen is not far away.

More details please refer to the video: https://youtu.be/hac86fRCFZI

 

Can Your OEM-Compliant iPhone 5S LCD Be Used for iPhone SE?

Since  we received the newly released iPhone SE , we did a thorough study in which parts that the iPhone 5S and iPhone SE share in common. Not surprisingly, many replacements parts of iPhone SE are compatible with iPhone 5S, their internal structure are almost the same. What excited us most is that they can totally share the same LCD screen and digitizer assembly, which with no doubts will reduce the inventory and supply chain integration pressures of repair shops. However, with the original LCD screen is getting more and more difficult to be obtained, most repair shops are using more replacements parts produced by third party manufacturer in China.

In order to figure out whether the iPhone 5S LCD screens produced by the third party manufacturer are compatible with iPhone SE or not, we did the following experiment in iPhone SE:
1.Types of surveyed LCD screen: We chose 4 different LCD screen made by Chinese LCD Screen manufacturers: TM, LT, JDF and In-cell.
2. Sample number: 20 for each kind
3. The test content: Display and touch function
And here are the results
iPhone se not compliant with iPhone 5s

What surprise us is that all of the China made LCDs can work well whether on display or touch function in iPhone 5S, however, when being used in iPhone SE, there are serious problems like shaking screen, black screen, Vertical lines on display (which just like you didn’t connect the LCD screen connectors well).

shaking screen of iphone se

Why these problems happened?
First thing we need to know: the sources and production process of the China made LCDs.

The TM/LT/JDF/In-cell LCDs assemblies in the market are not completely produced by the manufacturers themselves, they just provide the cut LCD screens, the rest processes are finished by the other third party manufacturers which also provide assemble the glass lens, digitizer frame, the LCD back plate shield and the LCD drive IC and other related small parts. It is not only the LCD itself which influences the display function, the compatibility between LCD drive IC and the motherboard is also another important involving factor. In order to save costs, pursue higher profits, these third party manufacturers are using OEM-compliant LCD drive IC, which just debugged with the compatibility of 5S’s motherboard, not with SE’s.

In order to verify our speculation, we did another experiment:
Sample LCD screen: 10 pieces LCD screen made by In-cell(with original LCD drive IC)
Sample device: iPhone SE
Test result: All 10 LCD screens are worked well, no shaking screen, no black screen nor vertical lines on display appeared.

Conclusion:
Most China made LCDs are using the OEM-Compliant LCD driving IC at present. When replacing iPhone SE LCD screen with it, there is a big chance to encounter the phenomenon of shaking screen, black screen and vertical lines on display.

Suggestion:
1. Original and brand new LCD screen would be your best choice when replacing iPhone SE LCD screen, if not, the assembled original screen and original-refurbished screen are second choices.
2. If you truly want cost-effective China made LCDs, seek for reliable suppliers who uses the original LCD drive IC.(That is very important)

Why Sony Z3 Series Front Housing Adhesive Should Be Heated Before Used?

Recently many videos about Sony Z3 front housing adhesive impressed us which showed the adhesive should be heated before used.  They said Sony Z3&Z5 series front housing adhesive are weak when they used, which caused problem when they assembled screen with frame. To explain this problem, we made a test and found some very important information.

For Sony Xperia Z3+ Front Housing Adhesive(1)
There are two types of front housing adhesive for Sony Z3/Z3Compact/Z3+, Z5/Z5Compact/Z5 Premium, one is original front housing adhesive, another is OEM compliant front housing adhesive. Let’s take Sony Z3 front housing adhesive for example. You will know the difference.

compare oem and oem-compliant

1. Material difference

z3 front housing adhesive compare

2. Quality difference

For non-original adhesive, there are different quality also as they are from different factories. So Future Supplier had tested many suppliers and would use the best source.

3. Usage difference

Step 1:
Clear up the residual gum on the screen &front housing with 90% Alcohol. Clear up the residual gum clean the lcd screen.

Clear-up-the-residual-gum

 

Step 2:
Peel off the films and put one side on the front housing then peel off final film. peel off the sticker

peel off the sticker

Heat up the front adhesive sticker for about 1 minute and make it stick tightly to the frame.

heat up

Step 3:
Original: Put the screen on and then put the whole front screen assembly with frame on the heating plate (80-100 centi degree for 5 second).

put screen on
Non-original: Put the screen on and press them with efforts.(No need to put it on the heating plate)

press-the-screen
Last step:
Original: Press the screen with efforts and clean the screen surface.
Non-original: You could also use 3M reinforce to strengthen the stickiness before you put screen on.

 

clean-the-screen-surface

So if Sony Z3 front housing adhesive you purchased is original, heat the item by heating plate before used, then it will work.
You will also notice the same situation would happen on Sony Z3 compact/Z3+, Z5/Z5 Compact/Z5 Premium. So the correct ways for you to use their front housing adhesives which are the same as Sony Z3.

Can iOS 10 Work Well in China Made iPhone 6 LCD?

iOS 10 is coming to your iPhone, iPad or iPod touch, unless of course you have an age-old phone or tablet that still uses the 30-pin dock connector or is an older iPod touch.

ios-10-release-date-june-2016-970-80Recently, someone said his iPhone blacked out after he upgraded it to iOS 10 beta version with OEM-compliant TM screen, which makes he think the problem lies in the OEM-compliant TM screen. In order to figure out whether China Made iPhone 6 lcd can be used in iOS 10, we did a test with five-type of iPhone 6 lcds from different Chinese manufacturers, they are YD, LT, TM, JDF and LG-made (the third party manufacturers adjusting the LG-made lcd to fit iPhone).

ios10 Beta

Firstly, we download and update iOS 10 beta version in our iPhone 6 testing board.

5-different-China-made-lcds1
Secondly, we install five different China Made iPhone 6 displays on the upgraded motherboard one by one to check if the phone could work well. We found out all of them work normally during the testing.

ios10

Lastly, Chinese factories also did some researches and confirmed that iOS 10 beta version could be applied to the China Made iPhone screens without any problem so far. The customer’s phone getting dark is probably caused by the instability of the iOS 10 beta version, not because of the OEM-compliant screen.

ios10 back up
By the way, you’d better back up your data before you update the iOS 10 beta version, in case that you could change back if needed. iOS 10 beta version is not so steady and a little bit bugs maybe exist as it’s just released. We will keep eye on this issue and keep you posted.

You Are Out If You Still Do Not Know Pre-installed Frame

With the popularization of iPhone 6, more and more problems are brought to our attention, such as loose frame, frame and lcd are separated,bad backlight and bubbles, black spots and dust etc. Many people are willing to repair instead of buying a new phone. However, most of repair shops adopt hot melt glue technology when repairing which appears degumming, cracking and excessive glue problems.

As following:

loose frame

Those questions come up more and more frequently. Repeated back repair not only waste time, but affect the performance of phone.

To solve these questions, the pre-installed frame for iPhone 6 series appears.

iPhone 6 plus glass lens with frame

First, let’s know about the component and definition:

The pre-installed frame is consist of two parts: frame and glass cover. Via cold glue technology, apply glue on the frame and glue it to the glass lens.

iPhone 6 lcd with pre-installed frame

Advantages:

1. Pre-installed glass cover with frame can keep viscidity to avoid frame from come off and flexible. It adopts cold glue bonding technology strictly according to original factory, glue the frame to the glass cover. Cold glue has the advantage of stable physical properties, once glue well, you need not worry about come off under minus 60℃.

2. Omit procedure, reduce risks and save costs: pre-installed technology achieves laminating  frame with screen directly, omits the process of gluing lcd with glass cover and frame respectively. But traditional laminating technology need fit twice which adds damage rate of screen.(Note: The lcd screen is fragile and easy to damage)

3. Easy and Convenient Operation, No need vacuum laminating.

Traditional way for LCD laminating need two-step: vacuum laminating frame & glass lens separately, this process is cumbersome and often prolonged. While pre-installed frame just need laminate screen with lcd laminate mould which is easy to operate and convenient to process. (Note: we have 5.5 inches/4.7 inches/4.0 inches/3.5 inches mould which is compatible with corresponding size )

lcd laminating mould

The lcd screen with pre-installed frame is not easy to appear degumming, cracking and excessive glue. The lcd adopts traditional technology using hot melt glue, the physical property is unstable which changes with the surroundings temperature and easy to excessive glue during the process of laminating. Cleanup process is cumbersome and facile to crack,however, cold glue technology will not have those problems.

Everything has the advantage and the disadvantage just as a coin has two sides. The pre-installed frame has the advantages as above, we should recognize its disadvantages too.

1. Because of stable physical property and strong viscous, once gluing together, it is difficult to disassemble, even professional equipment can not ensure high success rate.

2. During the process of disassemble, the lcd is easy to be damaged, refurbishing is difficult.

3. Not easy to repair: once the screen is broken, you need replace a new screen or change a new phone.

All in all, Pre-installed frame can solve degumming, cracking and excessive glue etc.problems. The cold glue technology is also mature and the supply is stable, why not give it a try?

Note: If you are interested in pre-installed frame, we have good news for you: purchase above 100pcs glass lens with frame,you can receive free adjustable LCD laminating mould as gift.

 

What Cause iPhone 6 Plus Screen Flicker & Bad Touch

iPhone 6 plus lcd

When replace a new iPhone 6 plus screen, those problems occurred frequently:

1. No touch function  during the process of LCD testing or finished installing.

2. The screen flickers by slightly touching, then without touch function.

iPhone 6 plus Flash screen

3. In a few days, the new replaced screen can not work any more.

crazy for the screenjpg

Usually we regard them as the matter of LCD screen, and replace a new lcd to solve those problems, but bad touch happens again. Through uninterruptedly attempting, we find it is the problem of touch IC. Replace a new lcd screen can not solve the problem fundamentally.

iPhone 6 plus lcd

Why it is the problem of touch IC? Let’s see how it works firstly.

working

Touch screen is a kind of induction type LCD Display device which can receive contact etc input signal, When contacting a graphical on-screen buttons, haptic feedback system can drive a variety of on-screen coupling device according to a pre -programmed program which can be used to replace the mechanical button panel , and by the LCD screen to create a vivid video effect .

To put it simply, when we touch one point of the screen , touch sensor will collect the according location data and transmit it to touch ic for integration , then touch IC convert the message into display information and transmit to display IC, finally display IC turned the information into corresponding pictures for displaying or changing.

The above three phenomena occur are due to touch sensor can not transmit the received information to display IC, so we can judge it is the problem of touch IC.

Then how to work it out?

1). Find U2402 touch IC and dismantle.

U2402

2).Test the resistance of U2402, and find M1 has no resistance.

resistance u2402

3).Fly line from M1 to one part of U2403  (Note: In practice, flying line is the essential step for screen flicker and bad touch).

fly line

4).Reinstall U2402 touch IC

reinstall u2402

5). Install and test whether it works after cooling.

TEST

In general, bad touch and screen flicker are supposed to the problem of lcd screen, then how to simple judge the problems? When we fall into the situation of bad touch, we can test several lcds with the same mainboard, or choose a good lcd for testing, then you can decide which part goes wrong.

replace with two lcd

For more details, you can click here:  https://www.youtube.com/watch?v=fJ3JC1-45nY

Believe it: iPhone 6 Can Convert into iPhone 6S

Rumors about iPhone 7 are not fresh now, While iPhone 6 screen can convert into iPhone 6S, you believe or not? Let’s check how to achieve and test the function:

iPhone 6 to iPhone 6s

First, you should know the parts need to be changed:
1). Replace iPhone 6 flex cable by iPhone 6S.
2). Separate the LCD of iPhone 6, then laminate the iPhone 6S LCD via vacuum laminating machine.

Detailed Steps:

1. Separate the iPhone 6 LCD and glass cover by professional cutting machine.

screen separator

(Notes: the glass cover of iPhone 6 is compatible with iPhone 6S, please handle gently to avoid damaging the LCD which may cause backlight problem)

2. Remove the glue pasted on the iPhone 6 glass cover with glue remove machine, then disassemble the flex cable, after that, replace it with iPhone 6S flex cable.
glue remove machine

3. Laminate iPhone 6S flex cable by professional laminating machine. After doing this, we have finished iPhone 6S touch flex cable with glass cover.

Laminating

(Note: this operation needs to wear gloves)

4. Laminating the function well iPhone 6S LCD and touch flex cable with glass cover. vacuum laminating

(Notes: this procedure must be finished strictly under guide and it needs patience and skills, take care when taking up and putting down, or the LCD will drop off and break easily).

5. After Applying LCD adhesive,OCA and screen protector, iPhone 6S LCD screen assembly has been finished, whether it is quality approved? testing is indispensable.

oca

6. Make a regular test to the final LCD screen, mainly for 3D touch and backlight.

touch test)

7.If it works well, install the frame finally.

Till now all the procedures have been finished and iPhone 6 LCD screen has converted into iPhone 6S screen successfully.

iPhone 6 TO 6s conver

From the above steps, we witness the processing of converting iPhone 6 LCD into iPhone 6S. Except for professional technology and machine, patience and carefulness are also important.

5 Shocking Secrets You Never Know About iPhone 6

Now iPhone 6 lcd is divided into 2 types: OEM LCD and OEM-compliant LCD.

The following price for all kinds of iPhone 6 screens is based on A stock of the product itself.

iPhone 6 secret

一. OEM stock for iPhone 6 lcd originates from Sharp, Toshiba and LG manufacturer, price ranges from $110 to $120.

Replacement Part for Apple iPhone 6 LCD Screen and Digitizer Assembly with Frame - White - A Grade (1.)

Features:

1). Screens are offered from original manufacturers.

2). All assembly components are original.

3). The supply for iPhone 6 screens are not stable, and it’s basically short of supply which only possess market share less than 0.1%.

4). iPhone 6 screens can be categorized as three quality standards(A/B/C) and the price fluctuates accordingly.

A stock ranges from $110 to $ 120, $70 to $90 is for B stock and $50 to $60 is for C stock.

二. iPhone 6 OEM lcd with OEM-compliant glasses: lcd is from Sharp, Toshiba, LG manufacturers, price ranges from $70 to $90.

Replacement Part for Apple iPhone 6 LCD Screen and Digitizer Assembly with Frame - Black - A Grade (3.)

Features:

1).The stock supply is from refurbishing factory where broken glasses are re-manufactured.

2). Both lcd and flex are original, the glass and other components are OEM-compliant.

3).Due to the influence of recycling used screens, the supply for iPhone 6 lcd is relatively stable, and the market share is 20%.

4). According to different quality standards, A stock ranges from $70 to $90, $60-$65 is for B stock and $45-$55 is for C stock.

三. iPhone 6 OEM lcd with OEM-compliant flex, price is $55-$65.

OEM Apple iPhone 6 LCD Screen and Digitizer Assembly with Frame - White (2)

Features:

1). The supply comes from unauthorized workshop or refurbishing factory.

2). OEM lcd, while glass and flex are both OEM-compliant.

3). Long term stability for the supply, market share is 40%.

4). Prices for three different quality standards, $55-65 is for A stock, $50-$55 is for B stock and $45-$50 is for C stock.

四. iPhone 6 with OEM Sharp LCD, but with OEM-compliant touch, price is $35-$40

OEM Apple iPhone 6 LCD Screen and Digitizer Assembly with Frame - White (1)

Features:

1). The supply comes from unauthorized workshop or refurbishing factory.

2). On-cell craft, only lcd and is OEM, other assembly components are OEM-compliant.
3). Stock from retooling which has long-term supply, market share is 30%.
4).Three-level standard: $35-$40 for A stock,$30-$35 for B stock and $28-$30 for C stock

五. iPhone 6 copy lcd from Tianma, LT, JDF, JDB, Shenchao , price is $20-$35.

OEM Apple iPhone 6 (4.7-inch) LCD Screen and Digitizer Assembly with Frame - Black (3)

Features:

1).The supply comes from workshop.

2). Retooling mold for iPhone 6 lcd and flex with stable performance and mature technology.

3). Long-term supply for retooling mold lcd, and market share is 50%.

4). Three different quality standards are:  A stock($30-$35), B stock($25-$30) and C stock($20-$25).

How to distinguish OEM and OEM-Compliant LCD Screen:

Glass comparision_
Note:
Tianma, LT, JDF OEM-compliant LCD screen: grid can be seen on the display screen once you use the Flashlight to check, while OEM will not.

How to distinguish OEM and OEM-Compliant Flex cable:

flex comparision

Note:
1.Original flex has Apple logo, while Tianma, LT, JDF flex cable has none.

2.Users can feel that the touch for OEM LCD and flex cable is very sensitive, while it takes 1-2 weeks to appear touch delay if using copy flex cable.

3. OEM flex cable will not getting hot even using 5 hours, but China flex cable does in 1-2 hours, this is because of the quality of flex cable.

How to distinguish OEM and OEM-Compliant Frame:

frame comparision

Note:
1.OEM frame has no gap visually, and installed performance can reach perfectly to 1:1, while OEM-Compliant frame with bad glue which easily to come apart and fall off.
2. OEM-Compliant frame is easy to have gap when installing, while OEM frame has no such appearance.

All in all, various quality and manufacturer make the price of iPhone 6 LCD screen variant.

Do You Have A Blank Screen When Calling Someone?

When you’re about to ring someone, the screen suddenly turns black before the phone screen gets close to the ear,  you try to push the power button, but it doesn’t even work. The screen can’t be lighted up until the phone conversation is over, this is caused by cellphone’s poor sensor.

black screen

The reason for this symptom is the LCD Screen and front frame has not been pressed by professional equipment in a constant temperature.

If the front housing adhesive used for the screen assembly is not original, its adhesive performance and material quality are not as good as the original. When we go to a Phone Repair Store for a new screen, the shop owner usually assembles the lcd assembly and front housing together at room temperature with his own hands, which directly leads the whole screen’s force point not balanced, nor completed through machines in dwell time(dwell time condition: use pressing equipment in clean room, pressure:0.4 Mpa, temperature:45℃ ). In this case, LCD Screen assembly will be gradually separated from frame which result in poor sensor finally. So there is no surprising that blank screen happens for a phone call.

So why the LCD separation can lead to poor sensor?

First, we need to figure out how the sensor works, as follows:

The sensor is composed of two components: One is to send the infrared ray out, the other is to detect and receive the infrared ray. As the ear is close enough to the phone, the ear can make the infrared ray reflected on the receiving component, so the loop is formed, this signal shows the phone is off, and once the ear leaves the phone which the loop is not formed, the screen can be lighted up again.  working mode

When the glass cover and sensor are not clung to closely, the infrared ray will be reflected by the light-receiving body through the glass cover between two sensor holes, that’s how the wrong loop formed and bad sensor emerges.

poor sensor

Then how to solve this problem?

If bad sensor happens, all you need to do is to put one foam on the glass cover which is between two sensor holes, making it impossible for emitted infrared to produce the reflection through the glass lens between sensor holes. That’s how poor sensor issue solved. That’s to say, it’s only with sensor holes emitting the infrared that is close to the ear, the light-receiving body can be reflected.solutions

Operation Guidance

1.Take a piece of foam approximately  1.00*3.00*0.5mm in size.

2. Place the foam attached to glass cover in the middle of two sensor holes (Note: Glue the foam with plastic tweezer to avoid scratching the glass cover and paint loss.)

installation

sensor test

 

Why Many Cell Phones Still Work Though the Screen Cracks ?

Can your phone still work when its screen cracks?

We often see that many cell phones still work though the screen cracks, but some cell phones aren’t able to work once the digitizer touch screen springs a leak in spite of unharmed LCD screen. What happened? It is not only up to how serious the leak is, but the technology that screens applied.

cracked screens

In order to get the answers clearly, let’s get to know the technology of cell phone screen firstly. There are three types of technology solutions adopted to cell phone screens, OGS (One Glass Solution),In-Cell and On-cell.

OGS-In-cell-on-cell

 

OGS technology, simply speaking, by plating ITO( Indium Tin Oxide) inside of the protective glass, the touchscreen is combined with protective glass cover, the protective glass and touchscreen can’t be separated because both are integrated into a whole. Most of Chinese cell phone producers adopt OGS technology, we usually see some files saying TOL(Touch On Lens),actually TOL is the same idea with OGS(One Glass Solution).

OGSThe screen which adopt OGS solution, once the glass cracks, the touch function is lost too, in that protect glass and touchscreen is a whole. If your phone belongs to OGS technology, pay attention in daily life.

Falling screen

In-Cell and On-Cell is similar, under the both solutions, there is a protect glass on the top to protect touchscreen and LCD panel. 

In-cell

The difference is that In-cell makes touchscreen built-in to LCD panel, actually touch sensor function is built-in to LCD panel, so the touchscreen and LCD become an integrated whole, which makes cell phone screen more thinner, like most of the iPhones;

capacitive-in-cell-touch-panels-600x498 iPhone-7

On-cell is that touchscreen is on the LCD panel, for example, some screens of Samsung cell phones and LG cell phones adopt On-Cell solution.

The screens adopting In-cell and On-cell solution will not lose touch function even if the glass cracks, because touchscreen is underneath the protective glass,of course, it is based on the flex cable doesn’t peel off.

Incell And On-cell

All in all, the screens adopt OGS are popular by Chinese manufacturers for the low cost, but the touch function is not secure, once there is a rip on the glass, you have to go to after-sale service for a new screen. In-cell and On-cell solution will not lose touch function easily even if the glass cracks. Whatever, any technology can’t compare with your carefulness, be kind to your phone, you need not worry about the situation any more.

screen protector