iPhone4 touch problem, iPhone4 how to correct touch screen

There are still many problems with jailbroken machines. Connect the computer first to restore it all, if it still doesn't work, it's a problem with the screen Look at the warranty, if it's not over the warranty It's a national bank or Hong Kong parallel import, then you can support the warranty in China (parallel goods in countries other than Hong Kong are not guaranteed) If you don't have a warranty, send it for repair when you send it to all of them Otherwise, the jailbreak will not be warranted, and when you send it, you have to say that you are broken with it Don't say what problems you have. You know

If it is out of warranty or the parallel goods screen in other countries is broken, then the loss is big Go to an ordinary repair shop, he will fool you At least 400 600 oceans If you go to an authorized repair shop for out-of-warranty repair, it is 1299 front and rear glass + home button.

Think about it yourself Pure manual typing Give points thank you.

Here's how to solve the problem:

1. The first thing to do is to restart your iPhone and press the "Sleep Wake" (also known as the power button) and the Home button at the same time until you see the Apple logo displayed on the screen.

2. Some users solve this problem by selecting "Settings" - "General" - "Reset" - Reset All Settings. The user will need to re-enter the password, change the wallpaper, and reset the Touch ID, but the user's data will not be deleted.

3. Users who encounter iPhone touch screen failure also solve the problem by restoring factory settings, but all the information on the phone will be lost, so users need to back up the important data in the phone in advance. After that, users may need to set up their iPhone like a new phone, and some users say that restoring backed up data from iTunes or iCloud will cause this problem to arise again.

Let's start with the software.

Go to Settings - General - Restore at the bottom. Try resetting all settings.

If it doesn't work. You can only replace the LCD screen. Generally, there are very few problems with machine touch, and they are basically problems with touch screens.

There is a problem with the light perception of the touch screen. To put it simply, the touch screen is aging.

You can ask the guy who sells mobile phones...

Mine is the same way, the touch ic is broken.

iPhone4 is a capacitive touchscreen and does not need to be calibrated by the screen.

Capacitive touch screen technology works using the body's current sensing. The capacitive touch screen is a four-layer composite glass screen, the inner surface and the interlayer of the glass screen are each coated with a layer of ITO, the outermost layer is a thin layer of silicone glass protective layer, the laminated ITO coating is used as the working surface, four electrodes are drawn out at the four corners, and the inner layer ITO is the shielding layer to ensure a good working environment. When the finger touches the metal layer, due to the electric field of the human body, the user and the surface of the touch screen form a coupling capacitance, which is a direct conductor for high-frequency currents, so the finger draws a small current from the contact point.

This current flows out of the electrodes on the four corners of the touch screen, and the current flowing through these four electrodes is proportional to the distance of the finger to the four corners, and the controller derives the position of the touch point by accurately calculating the proportion of these four currents.

Apple is not the same as Android, Android needs to be corrected when it is first booted, Apple does not need it, all Apple phones are corrected from the factory.

Of course, it cannot be ruled out that sometimes there is a misalignment, this situation generally occurs when using the software, the solution, use the home button to cut out, and then enter the software on it.

I've tried all of them in this situation myself. It's basically solvable.

iPhone does not need to correct the screen, if the touch screen is very stuck, delete some useless things and leave about 1G space, it will not be very stuck.

There's a touch setting in the settings. Take a look.

No, only the speed of reaction can be made!

This used to be a domestic machine, and the capacitive screen has long had no such purpose.

What sets iPod Touch apart from other iPods is its touchscreen interface. When you touch the screen, the iPod's circuitry is able to sense the movement of your fingers on the screen.

What makes this possible is the capacitive material under the screen protector of the iPod touch. In short, it harnesses the body's ability to conduct electricity – allowing this technology to change the amount of electricity the capacitive material carries when you touch the surface of the capacitor. Devices like iPod touch require you to use your fingers because insulators such as gloves and pens can't cause similar changes in capacitive circuitry.

iPod touch measures the change in battery level in two ways:

Self Capacitance: Circuitry monitors change electrodes.

Mutual capacitance: The current carried by a layer of driving lines. When a finger is placed on the screen, the sensing lines sense the current fluctuation.

The self-capacitive screen contains sensing circuitry and electrodes to determine where the user has touched.

In the mutual capacitance, a staggered layer of transmission lines and remote sensing lines jointly detect the current change.

Regardless of the method used on the screen, the current flow inside the screen changes when you touch the screen. The iPod records this current change as data and then uses mathematical algorithms to identify the finger movements.

iPod touch determines the shape, size, and position of the finger placed on the screen.

The in-memory gesture software determines the touch method. It takes into account what your iPod is currently doing and how your fingers are moving. Based on the data generated by the movement of the fingers, the processor sends instructions to the iPod touch screen and its software and hardware.

The iPod touch processor records the movement of your fingers, and you can zoom in or out of the window by sliding your finger. Touch input requires an iPod touch processor, operating system, and hardware and software.

The in-memory gesture software determines the touch method. It takes into account what your iPod is currently doing and how your fingers are moving.

Based on the data generated by the movement of the fingers, the processor sends instructions to the iPod touch screen and its software and hardware.

The structure of the capacitive touch screen is mainly to coat a transparent film layer on the glass screen, and then add a protective glass outside the conductor layer, and the double glass design can completely protect the conductor layer and the sensor. Capacitive touch screens are plated with narrow electrodes on all four sides of the touch screen to form a low-voltage alternating current field in the conductive body. When touching the screen, due to the electric field of the human body, a coupling capacitance will be formed between the finger and the conductor layer, and the current emitted by the four electrodes will flow to the contact, and the current strength is proportional to the distance from the finger to the electrode, and the controller behind the touch screen will calculate the proportion and strength of the current to accurately calculate the position of the touch point.

The double glass of the capacitive touch screen not only protects the conductor and sensor, but also prevents external environmental factors from affecting the touch screen, even if the screen is stained with dirt, dust or oil, the capacitive touch screen can still accurately calculate the touch position. Since the capacitance changes with temperature, humidity or grounding, it is not stable and tends to drift. This touch screen is suitable for the commissioning phase of system development.

He is thermally sensitive, and only fingers are useful for it. Got it?

iPhone uses a capacitive screen (explained to be a screen with light transmission and good touch performance.) It is characterized by the fact that it is made of a glass panel and cannot use a regular touch pen. Due to the best reasons, many other companies have chosen resistive screens (that is, pressure screens, only by giving him a certain amount of pressure can they be inducted, and capacitive screens only need to be contacted).

Capacitive screens support multi-touch (i.e., multiple fingers on top of it can recognize the position of each point), while ordinary resistive screens cannot. The iPhone's operating system, iOS, is specially optimized for touch, so it can be recognized even if it can't be fully clicked.

It is highly recommended that you buy Meizu M9, the emperor of domestic machines. Its performance and feel are comparable to those of the iPhone.

It is a multi-point capacitive touch technology, which feels very good, but because it is Apple's patented technology, it can only be used in Apple products.

The touch screen of the iPhone is only sensitive.

Reasons why the iphone4 touch screen is good and bad when it is good:

1: The motherboard is faulty.

2: Screen hardware problem.

3: The cable is faulty.

If it is still under warranty, you can make an appointment for repair through Apple's official website.

The operation is:1After logging in to Apple's official website, click on "Technical Support".

2.Click "Provide Serial Number", enter the correct machine serial number, and check the warranty period to make an appointment.

3.After the appointment is successful, bring the machine and ID card to the Apple store for repair within the specified date.