1、 Why is the screen of an iPhone malfunctioning and jumping

1) The touch screen is broken (such as encountering greasy or magnetic environments).
2) The motherboard is leaking electricity. 3、 The battery is aging and damaged.

Generally speaking, the third possibility is the highest, and choosing to replace the battery can solve the problem of iPhone jumping.

2、 How to solve the malfunction and jumping of the iPhone 5s touch screen:

1) When users encounter screen malfunction while using their mobile phones, they can long press the home button while the screen is locked to enable voice control function. Then at this point, it is said that players can choose to play a song and then select the touch function to restore it. We can wait for a while and then we will find that the touchscreen issue has been fixed.


2) Users can also wait until their phone runs out of battery, and the phone will enter an automatic shutdown state. At this time, users can charge the phone and then restore touch screen operation after turning it on.

3) Users can connect their iPhone 5s to iTunes and upgrade their iPhone 5s to the latest version of the iOS system. (jailbroken users need to be aware that they cannot directly upgrade their iOS version on iTunes)

4) Users can also choose to double-click the home button, and then we will exit all programs running in the background, which is also a solution to screen failure.

5) Users can long press the power button on their phone and then hold down the home button to return to the home screen. This is also a solution to screen malfunction.




3、 IPhone 6/6 Plus touch screen malfunction? Solution to screen malfunction

1）. The first thing to do is to restart the iPhone and simultaneously press the "sleep/wake" button (also known as the power button) and the Home button until you see the Apple logo displayed on the screen.
2）. Some users solve this problem by selecting "Settings" - "General" - "Reset" - "Reset All Settings" in sequence. Users need to re-enter their password, change their wallpaper, and reset their Touch ID, but their data will not be deleted.


3）. Users who encountered iPhone 6/6 Plus touchscreen malfunction were able to solve the problem by restoring factory settings, but all information on the phone will be lost, so users need to back up important data in advance. Afterwards, users may need to set up their iPhone 6 like a new phone, and some users claim that restoring backed up data from iTunes or iCloud will cause this problem to occur again.
There are also some available methods that everyone can try:

——You can clean the screen with a slightly damp, lint free soft cloth.

——Do not use the device immediately while wearing gloves, when your hands are wet, or after applying hand cream.

——If you are using a phone case or plastic protective film or film on the display screen, try removing the screen protector and testing the device without them.


Open the "Map" application and double-click on each corner, then press the middle button to verify if it has zoomed in to each section.
If a certain area in other application software is affected, please note this location and try to verify the touch function of this location in the "Map" application software.


The main reason for Apple phones experiencing a situation similar to "touchscreen malfunction and jumping" is due to touchscreen malfunctions or low battery power, etc. Therefore, when we encounter this situation, the first thing we need to do is to determine the specific part of the problem based on our own judgment measures. Then, we can solve it by long pressing the power button or restarting the phone, and other basic steps. If we still cannot achieve normal use after trying this method, we can also seek help from professional maintenance personnel.

Everyone knows that a screen is composed of individual pixels, and what we call "1920 × 1080" actually refers to the number of vertical and horizontal pixels. The essential difference between OLED and LCD lies in their display principles. OLED can be simply understood as composed of countless red, green, and blue light bulbs that can emit light on their own, and macro display can be controlled by controlling the brightness and brightness of each bulb. And there will be a backlight panel on the back of the LCD, which displays different colors by passing through "filter paper" of different colors. ''



The working principle of LCD (Liquid Crystal Display) is to use liquid crystal molecules to change their alignment direction under the action of an electric field, thereby controlling the passage of light and achieving image display. LCD screens require a backlight source to illuminate the liquid crystal layer, and display is achieved by modulating the backlight source through the liquid crystal layer.



OLED (Organic Light Emitting Diode) is a self luminous display technology where each pixel can independently emit light without the need for a backlight source. When current passes through organic materials, light is emitted, and the brightness is adjusted by controlling the magnitude of the current.



Simply put, LCD is like a transparent piece of paper that requires sunlight or light to see the handwriting, while OLED is like a luminous panel that can emit light on its own.



What are the advantages and disadvantages of LCD and OLED screens compared?



The advantages of LCD are very obvious. Firstly, it does not have color cast like OLED. Secondly, LCD generally has full DC dimming or high-frequency PWM dimming. Therefore, another recognized advantage of LCD is that it is very eye friendly. In addition, LCD screens have a longer lifespan, even if it takes four to five years, it is difficult for the screen to burn out even if it turns yellow. LCD screens are more durable. ''

OLED screens have strong adaptability to new technologies, but they also have some drawbacks, such as easy burn-in, color cast, and relatively short lifespan. The burn-in phenomenon of OLED screens refers to the possibility of permanent pixel damage when a static image is displayed for a long time, resulting in residual images on the screen. And LCD screens do not have this characteristics of LCD OLED display principle: The backlight illuminates the liquid crystal layer, and the liquid crystal layer modulates the light to emit light independently. Each pixel can emit light independently. Advantages include eye protection, long lifespan, low screen burn-in, low cost, high contrast, fast response speed, and bright colors. Disadvantages include low contrast, slow response speed, uneven color, easy screen burn-in, color cast, and relatively short lifespan. Applications include televisions, computers, mobile phones, smart watches, VR devices, etc



From the table, we can see that LCD and OLED each have their own advantages and disadvantages, and there is no distinction between good and bad.





Is OLED or LCD better for mobile phone screens?



In fact, both types of screens have their own advantages and disadvantages. Although it cannot be directly measured by good or bad, what is certain is that due to the current development of smartphones towards full screen displays and the popularity of under screen fingerprints

From a technical perspective, OLED screens are the better choice because they are lightweight, have good display effects, and save power, all of which are means to enhance the user experience. From the user's perspective. ''



We also know that LCD technology has been developing for a long time and is more mature in terms of technology. Even with lower cost control, it can still display more natural and accurate color effects. ''



There is no standard answer to this question, and it needs to be judged based on individual usage needs and preferences.

If you are a user who pursues eye protection and durability, you can choose an LCD screen. LCD screens have better eye protection effects, longer lifespan, and are less prone to screen burn-in.



If you pursue the ultimate display effect, you can choose OLED screen. OLED screens have higher contrast, faster response speed, and brighter colors, which can bring a more immersive visual experience.





What are the future development trends of LCD and OLED screens?



In fact, there are significant differences between LCD and OLED in terms of display principles, energy consumption, and forms. OLED is relatively better as its light-emitting principle is more advanced. ''



With the continuous development of technology, both LCD and OLED screens are constantly advancing. The cost of LCD screens is decreasing, and there are also improvements in image quality and response speed. The lifespan of OLED screens is also constantly extending, and the problem of screen burn-in is gradually being solved.



In the future, LCD and OLED screens may be integrated and developed in more fields, such as Mini LED backlight technology and quantum dot technology, which will bring better picture quality and richer color performance.

The difference between the two



1. Thickness: LCD screens are thick and hard, and cannot be bent; OLED screens can be bent, making them softer and thinner. From a structural perspective, AMOLED thickness can be nearly 30% thinner than LCD.





2. Price: Due to the mature technology of LCD, LCD is cheaper in terms of price.



3. Service life: LCD screens use inorganic materials, while OLED screens use organic materials. OLED screens have a shorter service life than LCD screens.



4. Color expression: LCD emits light through backlight refraction, so when displaying black, there may be light leakage and whitening around the screen, making black more similar to gray. OLED can express colors through self emission, resulting in a more vivid and full display effect, but there is a risk of screen burn-in.

(Representation of Black)



5. Energy consumption: The luminous principle of LCD is that the color filter film will cause a decrease in light efficiency. Some analyses suggest that the utilization rate of LCD for backlight brightness will not exceed 15%, and 85% of energy is wasted. Therefore, OLED is more energy-efficient than LCD.



LCD is never a slave



OLED screens are often referred to as "blind screens" due to the issue of screen flicker. When adjusting screen brightness, OLED screens use PWM dimming, which is commonly understood as turning on and off every second to control brightness. The brightness is adjusted by the proportion of screen on/off time within the interval.



As long as I light up and turn off quickly enough, my brain cannot feel that I am rapidly switching between light and light states. For some people who are sensitive to screen flicker, PWM dimming is particularly unfriendly to their eyes at low brightness, especially at night, which is why some people may feel obvious eye pain and soreness when using their phones at night.



However, many manufacturers later introduced DC modulation to solve the problem of screen flicker, but with it came the problems of screen burn-in and uneven brightness.



LCD enthusiasts are shouting: LCD will never be enslaved, because of the fatal problem of OLED screen flicker.

(Screen flicker display under camera, image sourced from the internet)



future trends



Although OLED has screen flicker issues, in daily use, the human eye cannot clearly perceive it. Only those who are very sensitive to screen flicker will truly feel discomfort.



OLED with greater power than excess has more advantages, such as better contrast, better black performance, wider color gamut, lighter, thinner, bendable, and so on. That's why mainstream flagship phones now choose OLED screens.

In the future, the development trend of mobile phones will also move towards full screen, curved/foldable screens, and under screen fingerprint and under screen cameras, and the position of OLED will not be shaken. LCD screens will be more commonly used in mid to low end smartphones due to their low cost and mature technology.



So, whether to choose LCD screen or OLED screen, Haoge has summarized their respective advantages and disadvantages for everyone. If you are particularly sensitive to screen flicker, it is recommended to choose LCD. In addition, choosing OLED screen can bring a better visual experience.

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Don't panic, the first step in self-study is to "line out" the screen

'Screen out' often means that the internal screen is damaged, so it's better to do it yourself instead of wasting money. Taking S15Pro as an example, the entire screen replacement process is broken down into 7 key nodes, each step accompanied by real-life photos, and following along can save a lot of maintenance costs.

02
Removing the back cover: The glass material needs to be 'translated'

2.1 ◇ First, cut open the double-sided tape, and then lift the cover in parallel
Lightly scratch along the border with a thin card, loosen the double-sided tape completely, and then move it as a whole. Avoid breaking it hard at 90 °, otherwise the back cover will instantly break into a "puzzle".



2.2 ◇ Remove the protective cover and battery
After removing the back cover, unscrew all the fixing screws around the body without missing a single screw; After removing the protective cover, disconnect the battery and power off the motherboard to avoid short circuits during installation.

03
Take the small board: first disconnect the cable and then take the screw

3.1 ◇ Loosen the display cable and charging port
Gently loosen the speaker and display cable interface, and there is also a straight screw on the top of the small board. After removing it, all cables can be pulled out.

3.2 ◇ Remove the card tray and protect the red dust-proof adhesive
Use tweezers to grip the card holder and gently shake it out; Use a leaf shaped pick to lift the small red leather circle next to it to prevent it from hooking onto the wiring when disassembling the screen.

04
Dismantling old screen: Blade+8+1 combination method

4.1 ◇ Cut open the sealant and apply 8+1 drops of solubilizing aid
Stick the blade tightly around the screen, cut off the sealant first, and then drip a small amount of 8+1 solvent to soften the glue for easy separation.

4.2 ◇ Card stitching, slow work produces fine work
The nail is stuck in the gap, and the card is slowly pushed along the edge. After all the double-sided tape is scraped loose, the entire screen can be removed.

05
Clean up residual adhesive and apply UV glue, and apply sealant to the middle frame

5.1 ◇ Special UV double-sided adhesive for cranks is put into use
Clean up all the old adhesive on the middle frame, apply UV double-sided adhesive specifically for the crankshaft, and apply a circle of sealant around the edges. The amount should be small rather than large - if the adhesive seeps out, it will create bubbles on the new screen.

5.2 ◇ Installing a new screen: align first and then press down
After inserting the cable and aligning the top, gently press down to ensure that the double-sided tape is fully adhered to the middle frame; Push on the battery and perform a power on self-test. If the touch and display are normal, proceed to the next step.

06
Reinstall the small board: plug the charging port first

Before putting the small board back in, first insert the charging port into the hole and fix it, then fasten all the cables in sequence, and finally reinstall the battery - the appearance of the startup logo indicates that the hardware is ready.



07
Upper protective cover, rear cover, and sealant

7.1 ◇ Tighten all screws in place
The speaker, charging port, and small board screws have all been reset; Clean up the residual adhesive on the protective cover and back cover, and then apply special sealant.

7.2 ◇ Cover and flatten, installation completed
Align the back cover with the buckle and lightly press it to fit. If the fingerprint and power button rebound normally, it means the whole machine has been restored. Power on test of various functions, no "wires" on the screen, sensitive touch, normal sound - great success!