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How to Fix Samsung S10 Camera Not Working

Today we will share how to fix the Samsung S10 camera not working. Open the camera. The camera is not working. As the camera has been replaced before and the problem still occurs, we need to take out the motherboard for further testing.

Place the phone back down on the heating pad at 100 °C for 2 minutes.

Insert a plastic card and slide it through. Apply some alcohol to facilitate separation.

After the back cover is separated, disconnect the flex cables. Then yank the motherboard out. Remove the front camera. Disconnect the connectors and remove the back camera.

First of all, we check the appearance of the connector. The connector looks good with no obvious damage.

Next, we connect the red probe to the ground. Measure the diode values of the connector with the black probe. When measuring pin 58, the diode value is abnormal.

Open the bitmap. We find that the power IC supplies power to the camera. The failure of the camera is probably caused by the power IC. 

Next, we try to replace the power IC. Remove the shielding cover with a hot air gun at 380 °C and airflow 3.

Apply some paste flux to the power IC. Remove the power IC with hot air gun at 380 °C and airflow 3.

Then clean the bonding pads with solder wick. Clean the bonding pads with PCB cleaner.

Get a known-good power IC. Apply some paste flux. Flatten the tin on the bonding pads with soldering iron at 380°C. Clean the bonding pads with PCB cleaner.

Apply some middle-temperature solder paste to the bonding pads. Heat to form the solder balls with hot air gun at 320 °C. 

Next, we solder the new IC with hot air gun at 330 °C and airflow 3. 

After the motherboard cools, measure the diode value of pin 58. The diode value returns to a normal value of 520.

Then we put back the shielding cover and camera. Install the motherboard for testing. The camera functions well. That’s as far as today’s repair case goes.

REWA Academy now offers repair courses for Android phone motherboard, including popular models of Samsung, Xiaomi, and Huawei. Please feel free to visit our academy if you are interested in learning motherboard repairs.

A Beginner Guide (Why & How ) to Using Boardview Schematics for Phone Repairs

Today we will introduce the new REFOX boardview software. Boardview software is an indispensable tool for phone board repairs. The circuits on the motherboard are intricate. Sometimes it is very difficult for us to recognize each circuit just by the appearance. Moreover, there is no way of knowing the contacts of each component.

However, boardview software distinguishes and marks each component on the motherboard. It can help us determine if the components have contact, which can substantially increase the efficiency of troubleshooting.

We can get a lot of information from the boardview software. There are two main sections of the boardview software. Simply put, the bitmap tells you the location and name of each component, while schematics tell you what each component does.

For starters, we can know what the component is through the initial letter. C is the capacitor, J is the connector, R is the resistor, U is the chip, and L is the inductor. The color can tell you the function of each area. The gray areas are grounded while blue areas are empty with no use. The yellow areas serve as signal or power supplies.

Last but not least, we can quickly find the contact components through clicking one component. In the split view, by clicking one component of the bitmap,the schematics will automatically jump to the corresponding component.

In addition to the above functions, resistance values can also be viewed in REFOX boardview software. You can even define your own resistance values.

Next, we will show you how to use the REFOX boardview software with a repair case. The iPhone 12 won’t turn on.

Then we need to take out the motherboard for further testing. Heat the phone with a heating pad and remove the screen with an opener.

It can be seen that the area around the display connector is severely corroded. Clean the corroded area with PCB cleaner.

Install the screen and plug in the direct current supply. Prompt a boot-up with tweezers. The boot current is fine but there is nothing on the screen.

Then we measure the diode values of the connector and compare the measured values with the values on the boardview software. The measured values do not have to be the same but the differences shouldn’t be large. When measuring pin 14, the diode value turns out to be abnormal.

Open the bitmap and find pin 14 of the connector. Click it and we find it has contact with one inductor.

The inductor has been corroded away from the motherboard. Next, we need to install a new inductor. Open the split view of the boardview software. Clicking the inductor on the bitmap can bring you to the inductor in the schematics. Judging from the schematics, the inductor is 700HM. Then we need to install an inductor of the same value. 

In the first place, apply some flux and middle-temperature solder paste. Solder the inductor with a hot air gun at 380 °C.

After the motherboard cools, measure the diode value. The diode value returns to a normal value.

Then we put the motherboard back on. The phone turns on and that is a repair done.

As you can see, the REFOX boardview software is of great help to board repairs. To give back to users, REFOX boardview software has launched a referral program. You can earn free days and rewards by simply inviting your friends to subscribe to any plans from REFOX boardview software. Please feel free to visit refoxteam.com for details if you are interested.

Easy Steps of Face ID Dot Projector Repair

As we mentioned about the solution of battery restoration last time, today we’re about to share with you the steps of Face ID dot projector repair. 

1. Use a multi-function programmer to test the dot projector cable whether it works or not. 

2. It's malfunctioning, so we need to write the data of the dot projector  has been on to the new one

3. To make positioning with a holding fixture

4. Place the dot projector onto another holding fixture, heat with hot air hun at 160-200℃. Pay attention not to heat the front camera preventing damage

5. After 15 seconds, pry up the dot projector module and crystal

6. Take out the flex cable

7. Heat the module at 330 ℃ and detach it from the flex cable

8. Heat with a hot air gun at 330 ℃, remove the MOSFET with a sculpture knife

9. Solder iron at 380℃ and jump wire between pin 2 and pin 3

10. Solder the dot projector module on the new cable

11. Test with the programmer to see if it works or not, if it doesn't, then we need to resolder 

12. Reassemble the dot projector cable on the metal plate, positioning it with the holding fixture

13. Fix it with adhesive and lastly do a test

Therefore, we recommend you the REFOX RP30 Multi-function Restore Programmer to assist you to finish all repair operations.

Battery data reading and writing applicable for iPhone: 
11/11P/11PM/12/12P/12PM/12MINI/13/13P/13PM/13 MINI
Face ID data restore applicable for iPhone X-12 Series

True Tone function will come soon, more processes will be extended via the online free firmware 

Connect the software on the PC end, modify data

Support data cloud backup and download

Software updating continuously...

If you are interested in REFOX RP30, please purchase it through: 

Any problem with the programmer or repair skill, welcome to leave us to comment

iPhone 14 Teardown | All You Need to Know

There is no doubt that the iPhone 14 is the biggest innovation this year. Many new features were added that tech enthusiasts around the world were eager to see. The design is sleek and modern, and it has a lot of power under the hood.

Apple announced the iPhone 14 on 8 September 2022, and customers began receiving them on 16 September. Although some lucky people received it earlier than ordinary users.  The new iPhone 14 offers a host of new features, including a more powerful camera, a better display, and more storage. Overall, it is an impressive upgrade from the previous model, which is sure to appeal to customers.

As a tech company and enthusiast, REWA Tech has already received iPhone 14 as well as other versions. With this teardown, we will take a first look at the internal components of an iPhone 14 and compare them with the iPhone 13.

Apple's iPhone 14 comes in four different models: iPhone 14, iPhone 14 Plus, iPhone 14 Pro, and iPhone 14 Pro Max.


In terms of display size, the iPhone 14 is identical to the iPhone 13 with some slight changes like different flex cables. While the resolution is 2532 by 1170 pixels at 460 pixels per inch, it is still better than iPhone 13.


Apple's iPhone 14 battery has a larger capacity than iPhone 13's. Compared to iPhone 13, iPhone 14 uses a 3279 mAh battery, while iPhone 13 uses a 3227 mAh battery and the battery life is also longer than ever.


It was widely expected that Apple would use the Bionic 16 chip in its iPhone 14. However, the Bionic 16 chip is only available on the iPhone 14 Pro and iPhone 14 Pro Max. Therefore, if you wish to experience the premium feel, you will have to spend more.

However, the iPhone 14 still has an L-shaped motherboard, although there have been some slight changes.



iPhone 14 features an advanced camera on both the back and the front, as well as great optical image stabilization.

In addition to a larger camera lens, the iPhone 14 has a different flex cable than the iPhone 13.

Front Camera

There are some wonderful new features on the iPhone 14 with its 12MP Ultra Wide front camera. Despite the fact that the front-camera structure of the iPhone 13 and iPhone 14 is almost identical in terms of repair. However, the iPhone 14's camera is better designed than the iPhone 13.

An iPhone 14 teardown video

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Is iPhone 14 easy to repair? 

It's good news for technicians that the iPhone 14 has a removable back glass this year. It is now easier for repair shops to repair an iPhone without having to disassemble the front glass.

Is iPhone 14 same as iPhone 13?

The iPhone 14 comes with some new features, but there are also a lot of similarities with the iPhone 13, such as the A15 Bionic chip, the same display size, etc. The main differences are the weight, thickness, battery life, and improved camera.

Is the iPhone 14 Back Glass removable?

The iPhone 14 and 14 plus are equipped with removable back glass. You can now easily remove the back glass from the iPhone 14 to repair it.


The Bottom Line

While the iPhone 14 comes with lots of new features, the iPhone 14 Pro variant is the best way to get a premium feel from the device. 

The iPhone 14 starts at $799 with some modest improvements such as a better camera, a longer battery life, a car-crash detection feature, and emergency contact via satellite. Although we hope you won't need the last two features. 

iPhone 14 Pro Teardown | Interchangeable Battery with iPhone 13 Pro

There is no doubt that Apple is the most innovative tech company in the world. Each year, they release new iPhones that are not only technologically advanced but also user-friendly and stylish. Many loyal Apple customers constantly look forward to getting their hands on the latest iPhone. Apple's success can never quite be replicated by other companies even when they release similar products. This is because Apple has mastered the art of innovation, and continues to set the standard for what consumers expect from technology products.

On September 8, Apple announced the new iPhone 14, and customers began receiving them on September 16. There are several improvements to the iPhone 14 pro, including a new design, improved cameras, enhanced dynamic island, and more powerful processors. An A16 Bionic chip powering it is the fastest ever found in a smartphone.

A lot of new and enhanced features are only available on iPhone 14 Pro and Pro Max. In the iPhone 14 pro and Pro Max, Apple has introduced a dynamic island, which is a wonderful feature for tech enthusiasts.

iPhone 14 Pro Teardown 

The iPhone 14 and 14 Pro have already been torn down by REWA Tech and their videos have been posted on YouTube. The purpose of this article is to provide a more comprehensive overview of the iPhone 14 Pro and its components. In addition, we will see how difficult it is to repair an iPhone 14 Pro.

Phone Opening Method:

Many YouTubers laud Apple for making it easy to open the iPhone 14 and 14 Plus, but the iPhone 14 Pro and Pro Max are difficult to open. The iPhone 14 and 14 Plus are easily accessible from the back, which is good news for third-party repair shops. On the other hand, iPhone 14 Pro versions cannot be opened from the back. The display must be removed to repair the phone, which is risky for most repair shops. Apple will charge $499 for replacing the back glass, or you can use the Refox laser machine to repair it.

However, you can easily and effectively open it with our REFOX RS50 Mobile Phone Opener & Clamp Fixture.

iPhone 14 Pro Battery

Apple's iPhone 14 Pro has a slight improvement in battery life. In comparison with the iPhone 13 Pro, iPhone 14 offers one hour more video playback.

As we disassembled the iPhone 14 Pro, we discovered that the iPhone 14 Pro battery appearance and flex cable are identical to the iPhone 13 Pro battery. 

We discovered that the iPhone 13 Pro and iPhone 14 Pro batteries are interchangeable, which is good news for repair shops.

iPhone 14 Pro Camera

In the iPhone 14 Pro, Apple has improved its camera to 48 MB, which is a significant update. With this camera, you can take a 12MP photo that contains more details. You will be able to capture better photos and videos, and you will be able to zoom in more without losing quality.

In terms of design and appearance, the iPhone 14 Pro camera is the same as the iPhone 13 Pro camera. The camera on the iPhone 14 Pro is bigger than that on the iPhone 13 Pro, and even the sensor is bigger. During the iPhone 14 Pro camera teardown video, we tried to show you the differences between iPhone 14 Pro and iPhone 13 Pro cameras.

Dynamic Island

Apple always has something innovative to offer with its iPhone pro models, and this year was no exception. Notch has been replaced by Dynamic island, which appears modern and innovative. The dynamic island is a new and innovative integration of software functions that shows you current activity in progress and you can check alerts and much more.

iPhone 14 Pro Teardown Video

Which iPhone Models Feature Dynamic Island?

Currently, Dynamic Island is only available on iPhone 14 Pro and iPhone 14 Pro Max. It is expected to be available on all models of iPhone 15 in the future. However, the iPhone 14 and 14 Plus still has a notch similar to the iPhone 13 in their design.

Can I exchange the iPhone 14 Pro and 13 Pro Batteries?

The battery and flex cable of the iPhone 14 Pro and 13 Pro was tested in REWA's lab and found to be identical. Additionally, we showed how to replace the iPhone 13 Pro battery with an iPhone 14 Pro battery in our YouTube video. The device, however, will display an "unknown part" message in the settings. This can be fixed by replacing the IC chip. 

Is the iPhone 14 Pro back removable?

iPhone 14 Pro and 14 Pro Max features non-removable back glass which makes it hard to open the phone to repair. In this case, you need an iPhone back laser machine to back glass disassembling.

Can iPhone 14 Pro be Repaired?

Aftermarket repairs are difficult on the iPhone 14 Pro because its back glass is not removable. Nevertheless, iPhone 14 Pro repairs are entirely possible.

What are the Common iPhone 14 Pro Parts?

The common iPhone 14 Pro parts are:

  • iPhone 14 Pro display screen 
  • iPhone 14 Pro battery
  • iPhone 14 Pro back camera
  • iPhone 14 Pro front camera
  • iPhone 14 Pro full housing
  • iPhone 14 Pro motherboard
  • iPhone 14 Pro charging port, and, etc.

Where to Buy iPhone 14 Pro Parts?

We at REWA are the largest provider of iPhone parts and accessories, and all the parts for the new iPhone 14 Pro will be available in our shop shortly.


iPhone 14 Pro is equipped with some amazing and innovative features this year, including a dynamic island, always-on display, a 48MB camera, etc. There isn't much good news as a repair shop when it comes to repairing the iPhone 14 Pro. The display still needs to be replaced, which is risky. There is also a possibility that the glass could be broken.

Touch Screen Technology & All you Need to Know

Mobile and computer technology are constantly changing due to technological advancements. In the past, we accessed the main device using external gadgets such as a mouse, keyboard, and other peripherals. But the invention of touch screens made it easier to interact with mobiles, computers, and other devices.

What is a Touch Screen?

Simply speaking, a touch screen or touchscreen is an input device that allows users to interact with the main device. Users can manipulate their devices using single or multitouch gestures. A touch screen display has three main parts: the protective glass sheet, the digitizer sheet, and the LCD panel.

What is a Touch Screen Digitizer?

A touch screen digitizer is also known as an LCD digitizer. The digitizer is an integral part of every touchscreen display. A touch screen digitizer is a thin transparent sheet or piece of glass that converts analog touch into digital signals. When a user touches the display to process something, the display transfers the command to the digitizer, which converts it into a digital signal.

What is an LCD in Touch Screen?

The full meaning of LCD is Liquid Crystal Display, and LCD is one of the main components of touch screens. LCDs (Liquid Crystal Displays) are super thin and fragile components inside touch screens that display images. It is only possible to get to the LCD by disassembling the device.

Brief History of Touch Screen

According to Wikipedia, the LG Prada, which was released in May 2007, was the first mobile phone with a touch screen. However, after the iPhone was released in 2007, the touch screen became wildly popular. 

Different Types of Touch Screen

It is not necessary to use an external mouse and keyboard to operate the touch screen. Keyboards and mice are replaced by touch screens. However, there are five different types of touchscreen monitor technology. They are listed below

  • 5-Wire Resistive Touch screen
  • Surface Capacitive touchscreen
  • Projected Capacitive (P-Cap) touchscreen
  • SAW (Surface Acoustic Wave) touchscreen
  • IR (Infrared) touchscreen

Use Cases of Touch Screen

In the last few decades, touchscreen technology has revolutionized the way we interact with technological devices. More and more devices are coming with touch screen displays nowadays, and we can see them everywhere. Below is a list of the most common touch screen devices:

  • Mobile phones
  • Laptops and Computers
  • Tablet computers
  • Watches
  • ATM (Automated teller machine) machines
  • Point-of-sale (POS) terminals
  • Car navigation systems
  • Medical monitors

It is possible to use touch screen displays anywhere. This is a very convenient way to interact with the machine.


When Should I Replace Touch Screen?

You can break your favorite phone with just a drop. However, if your phone screen is broken and not responding, you will need to replace the display screen with a digitizer assembly. If you are lucky and your touch screen works, then you only need to replace the front glass. A front glass replacement is less expensive and easier.


Mobile phones these days are almost all equipped with touch screens. Smartphones with touch screens are stylish and beautiful.

REWA Tech is a leading supplier of cell phone parts and tools. Our company offers high-quality LCD and OLED screen replacements for a wide range of smartphones. For your desired screen replacement, please visit our shop.