What You Need to Know When Replacing Samsung Galaxy S21/S21+ OLED Screen Assembly

samsung S21

The Samsung Galaxy S21 series represents the latest and greatest in non-foldable phones from the world’s biggest smartphone manufacturer.


It 6.2 inches (87.2% screen-to-body ratio) display features a dynamic AMOLED 2x screen that has corning gorilla glass. The benefit of the gorilla glass is that it can survive even after falling on hard surfaces from 1 meter or high without breaking the screen.

Confused old man looking at cellphone, new technology complicated for elderly

But the weather is unpredictable, when your samsung S21 OLED screen is accidentally broken, you still have to replace it with a new one.

Recently we received feedback from different customers, saying that after changing to a new screen, there was a problem of incompatibility.

Is this a problem with the OLED screen? Obviously, the answer is No.  Through the research and testing of our technicians, we found the problem.

We found that the front camera and the signal antenna are differentiated by version. But Samsung S21/S21+ series is universal. How to distinguish it?

First of all, we can distinguish from the appearance, As for front camera, “ULL” is the European version, “USQ” is the US version, if the version is wrong, the camera will not work.

Samsung s21 front camera

Then, Let’s see how to distinguish signal lines, “G991U/G996U” is the US version, “G991B/G996B” is the European version. If the signal cable version is wrong, it will affect the phone signal which may cause trouble to your use.

Samsung S21 Signal antenna cable

What you need to be aware of is that signal antenna fasten screw is triangle screw, a triangular screwdriver is required for operation.

triangle screw

Written at the end, when you need to buy a new Samsung S21 OLED assembly, you must first determine whether your mobile phone belongs to the US version or the European version, and then determine the corresponding spare parts, so that there will be no incompatibility problem after the replacement is completed.

If you have any more questions, please contact us: sales@futuresupplier.com.

How to Remove the Non-Genuine Battery Warning From iPhone XS to iPhone 13

Apple has encrypted the battery of iPhone XS and models above. Once you replace the battery, you will get the “Important Battery Message” and “Service” message. This makes our iPhone users feel bothered and annoyed.

iphone important battery message

To solve the problem, the latest solution has been verified. Today we will share solutions concerning iPhone XS and above models.

First of all, we will introduce the structure of the battery. The battery can be roughly divided into two parts – BMS board and battery cell. The original battery data is stored on the BMS board, it is connected with the battery flex cable. We need to replace the new battery BMS with the original one so that we can erase the warning.

structure of the battery.

Here is the detailed steps for replacing the BMS board.

First, Tear off the original battery bottom cover tape, separate and take out the BMS board.

Tear off the original battery bottom cover tape

Second, Disconnect the cathode and anode of the battery with a pair of scissors respectively.

second,Disconnect the cathode and anode of the battery with a pair of scissors

Third, After cutting, clean the remaining iron pieces on the BMS board, and polish the solder joints with sandpaper. Please do not break the flex cable.

Third, cleaning

Fourth, Clamp the new battery core and the flex cable on the aligning mold, the iron sheet of the new battery core is clamped in the middle of the iron sheet of the BMS board, and weld it with a special electric welding machine.

Fourth Clamp the new battery core and the flex cable on the aligning moldFourth weld it with a special electric welding machine.

The last step, after soldering, install the BMS board. apply the protection tape.

The last, apply the protection tape

After completing the above steps, install the battery and reassemble the iPhone, non-genuine battery warning disappear.


For more details, you can refer to our video: https://www.youtube.com/watch?v=BksOOuCvjKU

What’s more, if you want to change the cycle count of the new battery, connect the battery to the specialized programmer(iPhone XS and iPhone 11/12 series are different). Battery data on the BMS board can be seen. Recalibrate the cycle times and battery efficiency can be done.

The final suggestion is that if you are not familiar with iPhone repair, please do not try the above steps. The whole process requires special machinery and equipment, especially professional technical craftsmanship.

Can iOS 15.2 RC Solve iPhone 11/12 Series Non-Genuine Screen Warning?

iOS15.2 RC Version

Apple today seeded the RC versions of upcoming iOS and iPadOS 15.2 updates to developers for testing purposes, less than a week after seeding the fourth betas and six weeks after the launch of iOS 15.1 and iPadOS 15.1.

Future Supplier has download the latest iOS 15.2 RC version, and tested whether the iPhone 11 and iPhone 12 series have pop-up problem after replacing the original and domestic LCDs.

iPhone 11 non-original display

The result was a bit beyond our expectations. The first time, we updated iPhone 11 Pro to the latest iOS 15.2 RC version. Both original and domestic LCDs will have “Important Display Message” pop-up prompts after the first restart. But there will be no such prompt when restarting again. Unfortunately you can see the prompts in your phone “Settings- General – About”, it will always shows “Display – Unknown Part”.

iPhone 11 pro pop up

Then we upgraded the iPhone 11 pro max and iPhone 12 series to the latest version, the result is the same.

iphone 11 pro max pop up

The official version of iOS 15.2 is expected to be launched on December 15th. We will continue to monitor further test results.

How Do I Know My iPhone Charging Port is Damaged?

iPhone 11 charging port

iPhone charging issues are common in even newly purchased phones. But, believe it or not, most of these occurrences do not necessarily need to be a substantial hardware issue; many charger port issues come from day-to-day activities.

The most common causes of phone charging ports damage are:

1. Humidity
If your phone gets wet or you keep it in the environment with a high humidity level, the charging port can be damaged by corrosion.
2. Dirt
Dust, debris, and dirt will block the contacts and prevent the port from working properly. Unless the piece of debris is big enough to cause serious damage, the problem can be solved by simple cleaning.
3. Mechanical damage
This is the most common reason for this kind of issue. It’s impossible to avoid this type of damage because it occurs every time you connect and remove the charging cord. The best thing you can do to prevent this problem is to move very carefully every time you need to charge the phone.


Don’t get too worried as even a seriously damaged charging port can be replaced.

So how to choose a suitable charging port for your iPhone? This is what we are going to analyze in detail today. Let’s take iPhone 11 as an example.

The quality on the market is mainly divided into the following categories:

1. 100% original new;

2. Original disassemble;

3. OEM refurbished

4. High Copy.

Next, we will analyze and compare one by one.

First is 100% original new quality.

As we all know, original quality works well and with good appearance, but unstable supply and high price are also the reality we have to face. Suitable for customers who have high requirements for quality and appearance.

Original new

Second is original disassemble quality.

It is not so beautiful in appearance and accessories need to be posted. But stable function and cheaper price than original new quality. Suitable for customers who have high requirements for quality but low in appearance.

oem disassemble

Third is OEM refurbished (original flex cable, ic components are soldered up).

Its main advantage is its low price, function and appearance are ok. But many components are post-soldered, the welding process is worse than the original one. What’s more, some may not be able to pass the RF test. Suitable for customers who have requirements for functions but not high requirements for signals.

oem refurbished

The last is high copy quality.

From the appearance, the IC is different from original, and the logo is not Apple but from a third-party manufacturer. The function is not stable and RF can not pass testing. Of course, the price is lower than other qualities. Suitable for low-end refurbished customers who only require normal functions and do not require signals.

high copy

Which quality to choose? Of course, your decision depends not only on the value, but also how long you intend to keep your iPhone. If you plan to hold on to it for a few more years, it’s cheaper to repair the charging port than to buy a new iPhone.

Any more questions, please contact us: sales@futuresupplier.com.

How to Fix If Unlock with Apple Watch is Broken on the iPhone 13


iOS 15 has landed, and unsurprisingly, this update is chockfull of features that make life easier for us in newfound ways.  For example, if we have the Apple Watch and an iPhone, we can now unlock our iPhone with the Apple Watch! This is true only for Face ID-equipped iPhones only, though.


Why did Apple bring this particular feature only to Face ID-equipped iPhone models? This was a direct response by Apple to the global coronavirus pandemic wherein people with Face ID-equipped phones found themselves unable to unlock their phones due to the face masks.


But Apple has identified an issue where Unlock with Apple Watch may not work with iPhone 13 devices after the iOS 15 update. You might see “Unable to Communicate with Apple Watch” if you try to unlock your iPhone while wearing a face mask, or you might not be able to set up Unlock with Apple Watch.


Apple has warned owners of its new iPhone 13 model that they might not be able unlock their phone with an Apple Watch due to this software glitch.

apple watch can not unlock with iphone 13

If everything seems to be in order and you are still unable to unlock iPhone with Apple Watch after the iOS 15 update, there are a few steps you can take.

1. Restart the iPhone and key in your passcode when it boots up.

2. Restart the Apple Watch similarly.

3. Ensure that Unlock With Apple Watch is activated!

This method can temporarily solve the problem, but it may happen again in the future.

Good news is that Apple is lining up a software update that should resolve the problem, according to a new support document. Althought the specific release time is still uncertain.


Another problem is iPhone 13 Not Detecting SIM Card after the iOS 15 update.

Usually we will do the following operations to fix:

1. Turn On (and Off) Airplane Mode;

2.  Remove and Reinsert Your SIM Card and Tray

3. Restart Your iPhone

4. Reset Your Network Settings.

But it is not work for iOS 15 user, the current way to solve this problem briefly is to restart the phone, but the problem will still recur.

What we can do is wait for software update that can resolve the problem.

What You Need to Know About Apple Announces ‘Self Service Repair’


Apple announced a new self-service repair program on Wednesday that will let customers buy parts to fix their own iPhones or Macs. The program will first allow iPhone owners to replace their screen, battery or camera, with more parts coming later.

First, the company expects to make the service available for iPhone 12 and iPhone 13 lineups, and then expand to Mac computers featuring M1 chips.

iphone 12 13

“Creating greater access to Apple genuine parts gives our customers even more choice if a repair is needed,” said Jeff Williams, Apple’s chief operating officer. “In the past three years, Apple has nearly doubled the number of service locations with access to Apple genuine parts, tools, and training, and now we’re providing an option for those who wish to complete their own repairs.”


To ensure a customer can safely perform a repair, it’s important they first review the Repair Manual. Then a customer will place an order for the Apple genuine parts and tools using the Apple Self Service Repair Online Store. Following the repair, customers who return their used part for recycling will receive credit toward their purchase.

Self Service Repair is intended for individual technicians with the knowledge and experience to repair electronic devices. For the vast majority of customers, visiting a professional repair provider with certified technicians who use genuine Apple parts is the safest and most reliable way to get a repair.


What’s more, Apple hasn’t yet said how much the parts will cost.

Regarding the further development of this self-service repair we will continue to pay attention to it. If you have any ideas, please leave us a message.

How to Fix Your Samsung Galaxy S20 Ultra Back Camera


The camera is one of the most used applications on a smartphone. It is therefore, essential that it works perfectly without any hiccups while out to capture those precious moments.

Lately, many Galaxy S20 owners complained about the camera not working and they are not sure why?

samsung s20 ultra

In this article, we’ll discuss some effective solutions you can try to fix camera not working issues on the Samsung Galaxy S20, S20+ and S20 Ultra.

The following is basic detection methods:

1. Most often simply way is closing and restarting the camera app can fix the problem;

2. If the above solution does not work, try rebooting the phone;

3. Clear the camera data and cache;

4. Check if there are new updates available for the apps including the camera app;

5. Wipe system cache partition;

6. Factory reset your phone (only if all other solutions fail to fix the problem).

If the problem is still not resolved, you need to consider that there is a problem with the camera. As we all know, Samsung S20 series rear camera consists of multiple small cameras, how can I confirm which camera has a problem?

S20 Series back camera

Let’s take S20 ultra as an example to explain in detail how to confirm which camera has a problem.

Samsung has embedded a total of four cameras on the back of Galaxy S20 Ultra. They are 12-Megapixel Ultra Wide Angle Camera, 108MP Wide angle camera, 48MP Telephoto and DepthVision camera.


The specific test method is as following:

1. Open the dial interface and enter the Engineering mode (Input *#0*#)

2. Click MEGA CAM to test wide angle and telephoto;

3. Click Front Cam to test front camera;

4. Click TOF Camera to test DepthVision Camera;

Engineering mode

If all are OK, please return to the Home interface and turn on the camera, click the focal length 0.5x/1.0x/2x in turn to judge the focus of the camera , click 0.5X to test ultra-wide-angle camera.

Samsung-Galaxy-S20-Ultra focus test


In this way, you can determine which camera has a problem, and replace whichever has a problem.

If you are intertested and want to know more, please contact us: sales@futuresupplier.com.

When Do You Need to Change the iPhone Back Camera

iPhone camera not work

One of the best features of your iPhone is the camera. And there’s nothing more annoying than iPhone camera not working when you want to take a picture.

The iPhone’s camera is a combination of software and hardware. So, if your iPhone camera isn’t working, you need to investigate where the trouble lies—with the software or the hardware.

iphone 7 plus back camera need to replace

If it still not work after the software and hardware tests, then you need to replace a new back camera.

So how to choose a suitable back camera for your iPhone? This is what we are going to analyze in detail today. Let’s take iPhone 7 Plus as an example.

The quality on the market is mainly divided into the following categories:

1. 100% original new or original disassemble;

2. OEM refurbished (original flex cable is damaged, replaced a new cable)

3. Blu-ray with scratches (the camera lens surface is scratched);

4. The camera lens has watermark (eliminate watermarks and dirt by cleaning).

Now, let’s analyze one by one.

First is 100% original new or original disassemble quality.

As we all know, original quality works well and with good appearance, but unstable supply and high price are also the reality we have to face. Now mainly is disassembled quality.


Second is OEM refurbished (original flex cable is damaged, replaced a new cable).

Its main advantage is its low price, but in function, using it for a long time or dropping it will cause malfunction.

OEM Refurbished

Third is Blu-ray scratches (the camera lens surface is scratched).

Advantages: low price, stable function.
Disadvantages: camera lens scratches will affect the photo effect.

Blu ray with scratches

Last is the camera lens has watermark (eliminate watermarks and dirt by cleaning).

The appearance is invisible. If you buy the original camera but it is easily broken, it may be watermarked and cleaned.

Advantages: cheap price, perfect appearance.
Disadvantages: easy to damage and unstable.

camera lens has watermark

Each one has its advantages and disadvantages, just choose the right quality according to your needs.

Any more information or needs, please contact us: sales@futuresupplier.com.

New Tips to Try for iPhone 11 Volume Buttons Not Working

iPhone 11volume button

The volume buttons on your iPhone 11 won’t work and you don’t know why. In this article, we will explain what to do when your iPhone volume buttons are not working!

Basic RGB

If the volume buttons on your iPhone are not working,  it would be best to go to the Settings> General > accessibility and turn on the assistive touch. This option offers you control over the volume buttons, and by tapping on these options, you may have your volume buttons working fine.


If this trick not works, you may assume the problem is the internal flex cables.

First we need to know which flex cable is used to control the volume button and mute button. Yes, it is volume flex cable and WiFi flex cable.

volume flex cable and wifi flex cable

If there is a problem with your phone’s volume button or mute key, you need to judge two parts to determine where the problem is. There are three possibilities:
1. The WiFi flex cable needs to be replaced;
2. Need to change the volume flex cable;
3. Both cables need to be replaced.

Then if we find the problem, we can reduce unnecessary cable replacement and repair time during the repair process, and reduce repair costs.

iphone 11 rear housing

But how to judge whether it is the problem of the volume cable or WiFi flex cable?

iphone 11 teardown

The following is the detailed steps:

1. A Y-shaped screwdriver is needed to remove the fixing screw at the connection between the volume cable and the WiFi cable;

Y Screwdriver
2. Disconnect and take a new WiFi cable, after connecting, please connect it to the motherboard for testing. If the function is restored, the WiFi cable needs to be replaced;
3. If you connect the new WiFi cable and the problem is not resolved, then we need to use a new volume cable to connect to the original WiFi cable and test, if the function is restored, you need to replace the volume flex cable;
4. If the new volume cable can not solve the problem, both the volume and WiFi cable need to be replaced.
5. It is recommended to proceed according to the steps we said, so that the number of screws that need to be removed is the least and the most time-saving.

Any more questions, please contact us: sales@futuresupplier.com

How to Choose the Most Suitable Battery Cover for your Samsung Note 20 Ultra


The Samsung Galaxy Note 20 and Note 20 Ultra are two of the very best Android  smartphones you can buy right now. They feature powerful processors, versatile cameras, massive batteries, beautiful screens, and great all-round performance. Of course, technology being what it is, they may sporadically encounter issues. Today, we will discuss the issue of battery door cover.

Samsung Note20 ultra battery door

If your device dropped on the floor and the battery cover on your device Samsung Galaxy Note 20 Ultra got damaged, this is the part you need to repair it.

samsung note20 ultra broken battery cover

First, Let’s take a look at the classification.

The battery covers currently on the market are divided into three types in terms of accessories: 1. single battery cover;  2. battery cover with adhesive + camera lens and bezel; 3. battery cover + complete set of accessories.

battery cover in accessories

There are four types in terms of quality: 1. Copy;  2.High Copy;  3. Original film;  4. 100% Original.

1. Copy: Both the film and glass are imitation, the glass is not tempered enough, it is fragile, and the color difference is large;
2. High Copy: Both the film and glass are imitation, but the glass has a better tempering degree, is not easy to break, and has no color difference;
3. Original film: The film and glass are original, which can achieve the original effect;
4. 100% Original: The supply is unstable and the price is expensive;
We recommend high copy and original film quality. The supply is stable and the price is affordable.

Secondly, Let’s see how to choose.

In appearance, No bumps/scratches/crushes, no black spots and color spots.

Appearance problem

Pay attention: Samsung Note 20 Ultra camera glass lens and cover bezel are all divided into colors, it is black, white and bronze. But bronze glass lens is currently out of stock and is replaced with black.

Note 20 ultra back camera lens with bezel

Thirdly, We are talking about who is applicable.

Individual users and repair shops are suitable for battery cover with adhesive + camera lens and bezel.

Factory and after-sales repair shop can choose battery cover + full set of accessories. It can save a lot of labor and reduce costs, and at the same time can meet customer requirements.

Value-added services: We can coding and typing according to customer needs.

value added service

Finally,  you can refer to our method and choose the most suitable battery cover according to your needs.

Any more information or needs, please contact us: sales@futuresupplier.com.