The touch screen doesn t show what is going on if it doesn t work

Can the phone turn on and off normally? Can I pick up the call normally? In general, this situation has nothing to do with software.

Usually the reason why the screen is not displayed is that there is a problem with the hardware of the mobile phone, such as the poor contact between the wiring of the mobile phone and the mobile phone, or the wiring of the mobile phone is broken after a long time (the common fault of the flip cover slide mobile phone), in this case, the mobile phone screen will not be displayed or the display is abnormal. Of course, the phone's screen is going to break and it can also cause this problem, but it's unlikely that the screen will be broken. If the phone screen is displayed but does not light up when it is turned on, it is estimated that it is a problem with the screen background light.

It is recommended that you go to the customer service center to detect the specific cause of the failure, if the mobile phone is licensed, the non-human fault during the warranty period is free of charge. After the warranty period or repair in the outside repair shop, it is generally only about 40 yuan to change the cable, if you change the screen, it depends on the material of the screen, if it is a color LCD screen, it generally costs a few hundred yuan, then you have to consider whether it is worth it.

The touch screen of the Windows 10 system cannot be used, and there are two kinds of situations:

1. The touchpad is disabled, you look for it from the control panel, there are settings about the control panel, and see if it is set to be disabled, or there is a shortcut key next to your touchpad to disable the touchpad;

2. The touchpad driver has been deleted by other software, or there is a problem, in this case, you can reinstall the driver, or install software such as the driver wizard, and reinstall the driver.

It could be that the touchscreen is broken or your phone is dead.

Touchscreen analysis: Touch is unresponsive.

Phenomenon: When touching the screen, the mouse arrow does not move, and the position does not change.

Causes: There are many reasons for this phenomenon, which are explained one by one below

The dust or scale accumulated on the sound wave reflection stripes on the four periphery of the surface acoustic touch screen is very serious, causing the touch screen to not work; The touch screen is malfunctioning; The touch screen control card is faulty; The touch screen signal line is faulty; The serial port of the computer host is faulty; The computer's operating system malfunctions; Touchscreen driver installation error.

Solution: Observe the touch screen signal indicator, which flashes regularly under normal conditions, about once per second, when touching the screen, the signal light is always on, and after stopping the touch, the signal light flashes again. If the signal light is still on when it is not touched, first check whether the touch screen needs to be cleaned; Secondly, check whether the serial slogan connected by the hardware is consistent with the serial slogan set by the software, and whether the serial port of the computer host works normally.

Run the comdump command in the drive disk, the command is a dos command, add a space and the serial port code 1 or 2 after the comdump when running, and touch the screen to see if there is any data rolled out. If data is rolled out, the hardware connection is normal, check whether the software settings are correct and whether there are conflicts with other hardware devices. If there is no data rollover, the hardware will fail, and the specific fault point is to be determined.

Run the sawdump command in the drive disk, the command is a dos command, when running the program, the program will ask for the type of controller card, the port number of the connection, and the transmission rate, and then the program will read the relevant data from the controller card. Please note that if the value of the X-axis and the Agc of the Y-axis in the lower left corner of the screen are 255, the transducer of that axis will fail and need to be repaired. When performing the first correction after installing the driver, pay attention to the details of the system error.

No control card found"、"The touch screen is not connected"and check the corresponding parts according to the prompts. For example, whether the touch screen signal cable is firmly connected with the control card, whether the keyboard cable is all connected to the host, etc.

If it still can't be ruled out, ask a professional to repair it.

If you are using a Huawei phone and the touch screen is out of order, you can troubleshoot it by following the following steps:

1.If the ambient temperature of your phone is too low, the touch screen may malfunction, which is affected by the physical characteristics of the screen device itself, and it is recommended that you try to keep your phone at an ambient temperature of 0 -35.

2.If the problem persists, we recommend that you bring your phone to a Huawei Customer Service Center with your proof of purchase.

If you haven't backed up your data before, you're at risk of data loss when you detect it.

1. If there is static electricity on the mobile phone screen: the touch screen may fail due to static electricity on the mobile phone screen. Workaround:

The screen of the phone needs to be cleaned. Just gently wipe the entire picture with your hand. 2. Conflicting or incompatible software in the mobile phone:

There may be a delay in the phone's response due to software conflicts or incompatibilities. Workaround: Try pressing the lock button multiple times or restarting your phone.

3. The mobile phone is stuck or suddenly crashed: Most of the mobile phone is stuck or crashed, which is caused by the mobile phone's running memory is too small; The operation of the mobile phone screen slows down, and eventually the touch does not work properly. Workaround:

You can cut off the power of the mobile phone, restart it, and confirm whether the mobile phone screen can be used normally. 4. Mobile phone hardware problems: external forces or man-made sabotage cause the mobile phone touch screen to fail, generally the mobile phone screen failure caused by mobile phone hardware problems.

Solution: If this is the case, please send your phone for repair and try to replace it with a new one.

1.The touch computer screen is not responding.

1. Click the Start menu and select Control Panel.

2. Select Hardware & Sound in the Control Panel.

3. In the hardware and sound operation interface, click the mouse.

4. Click to enable the device, you can start the touchpad (the same is true for the touch computer screen) and resume normal use.

5. The computer is infected with viruses, which will also cause the screen to not be able to use normally, use anti-virus software to scan the computer to see if the virus can be detected.

2.What should I do if the computer turns on and the display screen does not respond.

I have also encountered this problem with my machine, first of all, you should rule out the problem of the monitor, because the result is still the same when you replace the monitor. Your friends are right, it's possible that the graphics card or the power supply is insufficient. You can try swapping out the graphics card on another machine, but if that doesn't solve the problem, it's a lack of power.

There are many reasons for insufficient power supply, the power supply life has reached or some new hardware has been installed on the computer recently, which may lead to insufficient power supply, sometimes in the case of insufficient power supply, open a few more times The machine can occasionally start, but it can not solve the actual problem. The only solution is to replace it with a new power supply. My machine is solved by changing the power supply.

So I personally think that there is a great possibility that your computer is running out of power.

Addendum: If the power supply is changed and the problem can't be solved, I'm afraid it's the motherboard's business. You can try to change the battery for the host, or if it doesn't work, you have to change the host. Hope it helps.

Taking win10 system as an example, the main reasons are:

1. It may be that the program runs wrong, resulting in a temporary failure of the touch screen mouse, the user can press and hold the power button to force the shutdown, and after re-opening, the use of the touch screen mouse can be resumed.

2. It may not be the function to turn on the touch screen, the user can click the touch screen shortcut key on the laptop computer, usually the FN+F9 combination key, and click the combination key to turn on the touch screen function.

3. If the touchpad is open, it may be that the touchpad program is damaged or the user accidentally uninstalls it, so you can reinstall it. Use the software "Driver Wizard" to detect it, and bury the finger to install it successfully.

4. The virus in the notebook may also cause the laptop touch screen mouse to malfunction, the user needs to operate the notebook keyboard to check and kill the computer for viruses, and after the killing is completed, the notebook can be restored to normal use.

5. If the above methods fail to work, it may be a hardware failure and cannot be repaired by yourself, so it is recommended that users bring their laptops to the official after-sales point of the notebook for repair.

The most common is that the touch screen mobile phone screen screen fails to function for a long time, sometimes there is no response after a long time on the screen, or even a complete crash, I believe that everyone will be quite annoyed when encountering this situation, so everyone wants to know what to do after the touch screen mobile phone screen fails. Here are some simple solutions to this problem.

In order to solve the problem of the screen failure of the touch screen of the mobile phone, we must first prescribe the right medicine and find the root cause of the problem, which will help us solve the problem. Today's touch screen mobile phones are basically using capacitive touch screen, if you unfortunately encounter the touch screen screen failure, first of all, it is recommended that you check whether there is dirt on the mobile phone screen, whether there is sweat, etc., sometimes these external factors will also affect the touch sensitivity, they can easily lead to the failure of the capacitive touch screen or drift; The second is to check if there are magnets around you or something, because the capacitive touch screen should not be close to something with a strong magnetic field, and if it is too close, the mobile phone touch screen will fail, and it may be damaged in serious cases. In addition to these basic common sense, there are other things that are willing to cause the phone to be unresponsive to touch, what are they?

Read on.

At present, the physical structure of a touchscreen mobile phone is: one LCD screen responsible for the screen display, and the other is a touch control module responsible for feedback of touch information. And touch screen failure often has two reasons:

One is caused by software failure, you can find the "touch correction" option in the phone settings to try to fix it, if not, you can also repair it by "factory reset" or re-install the operating system on the phone, but it should be reminded that if you want to restore the factory settings or reinstall the phone, you must back up the important data in your phone. If there is no problem with the software, it is a hardware problem, and then the touch screen hardware can only be replaced. If you are too expensive, you can also go to the online shopping platform to buy the corresponding model of screen components, and then find a maintenance person to help replace it.

Generally, if you are not a professional, it is difficult to check out the cause of the failure of the mobile phone touch screen, so it is recommended that you go to the mobile phone repair point to ask a professional to check it. If the cable is loose, it can be solved by re-inserting it after disassembly, even if the touch module is broken, it will not be too expensive to replace one, but if someone says that you want to change the LCD screen, then you have to beware, if you don't do it, your screen will be replaced with a second-hand one, in short, you have to prevent it.

If you are using a OnePlus phone, when your touch screen fails, it is recommended that you check the software settings and usage environment

1. If you are using an H2OS system, go to [Settings] - [System] - [Developer Options] - [Input]: Tap to turn on the operation feedback and turn on the pointer position. If the line is broken, it is recommended to apply for after-sales inspection;

2. Restart the phone to try, it may be that the third-party application has a hidden layer on the top layer;

4. Some non-self-contained software of the mobile phone may have compatibility problems, it is recommended to uninstall and observe;

5. If necessary, it is recommended to back up the mobile phone information (**number, SMS, install software, **, etc.) and restore the factory settings of the mobile phone.

1. If the mobile phone screen is wet or has liquid or water, please try to clean the screen, keep the screen clean and then touch the operation to see if it can return to normal;

2. If there is a third-party film, it is recommended to test whether it is normal after removing the film;

3. The friction of the mobile phone in the pocket may cause the touch to fail, so turn off the mobile phone and stand for a period of time to eliminate the impact of static electricity;

4. If a non-original charger is used for charging, please replace the original charger of the mobile phone;

5. If the touch screen fails after the mobile phone is damaged by external forces (collision, water ingress, etc.), you can bring the mobile phone to the offline service center for processing.

Don't get it yourself and take it to a mobile phone shop for repair.

1. In case of mobile phone screen failure, you first need to clean the mobile phone screen, and the static electricity of the mobile phone screen may also cause the touch screen to fail, so you only need to gently wipe the entire screen with your hands. Or you can try to remove the protective film to clean the screen.

2. You can also try to press the lock screen button back and forth a few more times. In many cases, the screen failure of smart touch screen phones is due to slow response caused by software conflicts or incompatibility, so it is possible to recover by pressing the lock screen button back and forth a few times.

3. There is also a situation that is encountered by friends who often use beautification, this situation may be caused by the incompatibility of various beautification software and the system, and the solution is also very simple, generally uninstalling beautification software similar to the theme can be solved.

4. For more serious situations, you can try by shutting down the phone, and then waiting for a few minutes before turning it on. Or remove all the memory cards and ** cards of the mobile phone, wait for a few minutes and then install them before trying.

5. If there is no way to troubleshoot through the above, then you have to restore to the factory settings. First, use a PC suite to back up the contents on your phone. Before paying attention to the soft grid, take out the memory card first, otherwise it will be formatted together, and the contents of the card will be completely deleted.

If this persists, try flashing your device again.

6. If the above methods cannot solve the smart touch screen mobile phone, it is the mobile phone screen damage, and you can only replace it with a new mobile phone screen.

Smart touch screen mobile phones are very convenient to use and more high-end, but it is inevitable to encounter screen failures, so you should be more careful when using smart touch screen mobile phones, and install software more carefully, so as to enjoy the convenience brought by mobile phones.