The phone screen is broken, and the lower part can t be touched, but the display is good and needs t

If the phone has a situation where the touch screen is not sensitive and malfunctions, it is recommended:

1.Check if the phone has a film, if there is a suggestion to cancel the screen film and try it.

2.If the touch screen of the mobile phone is completely malfunctioning, it is recommended that you restart the machine and observe it again.

3.Try to update the system version of your phone (Note: Please back up the data in your device before upgrading).

4.If it doesn't work, back up the data in your device (contacts, text messages, **, etc.) and try to restore factory settings.

If the problem persists after the above operations, it is recommended that you bring the machine, purchase invoice, and repair card to the local Samsung after-sales service center for testing.

If you are using a Huawei phone, we recommend that you back up the data in your phone in advance and bring the warranty certificate to a nearby Huawei Customer Service Center for repair

2. You can log in to Huawei's official website on your computer**, and click "After-sales outlets" to query the address at the bottom of the Huawei** page.

In this case, the consumer cannot repair it himself, but can only replace the damaged screen at a qualified repair point.

Supplement the knowledge of the principle of capacitive screen, which is currently the most widely used in the touch screen of mobile phones.

When touching the capacitive touch screen, the finger forms a coupling capacitance with the working surface of the touch screen, and a part of the current is sucked up at the touch point when the finger touches, and the current flows out from the electrodes on the four corners of the touch screen respectively, because the current is proportional to the straight-line distance from the finger to the four corners, the coordinate value of the contact point can be accurately obtained by calculating the proportion of the four currents.

When the touch screen is damaged and the current outflow is blocked, the coordinate value cannot be accurately calculated, and the capacitive screen can be displayed but no longer reacts to touch.

Can you know your phone model? My HuaweiU8800Pro has also been broken,**I bought a screen and replaced it myself,If it is displayed normally, it may only be that the outer screen is broken。 Normal capacitive touch screens are divided into internal and external screens.

If it is a full lamination, it must be replaced.

Right. What machine? If the price difference is not large, I recommend changing it together.

Phone touch screen.

Half of them can be used and the other half can't be used for the following reasons:

1. Poor contact of mobile phone touch screen cable; Return.

2. The touch screen hardware device of the mobile phone has been damaged.

It is recommended to send the phone to the after-sales service for repair.

Further reading: Check whether the touch screen of the mobile phone is functioning properly.

1. Take the MIUI system as an example, open the hardware test page in the MIUI system, and click the "Touch Screen Test" menu item;

2. Next, use your finger to continuously draw lines on the screen, if you can display the lines normally, it means that the touch screen display is normal, otherwise the touch screen display is problematic.

Calibrate it to see if it works, part of it is caused by software, flashing may be good, if not, replace the new touch screen. There are also some of them caused by the motherboard.

1. There is bai, it may be that the baseband is damaged or the cable contact is poor, the mobile phone has fallen, and most of the base dao has been broken

The belt is not much damage inside, but there are exceptions, generally only in the lower right corner of the mobile phone directly touching the ground in the impact is easy to damage the baseband, resulting in the failure of the mobile phone.

2. Crashing will also cause the cable of the mobile phone to break or have poor contact, resulting in poor touch screen of some parts of the mobile phone.

3. Whether it is a damaged baseband or a cable problem, it is not recommended for non-professionals to replace it by themselves, please go to the local after-sales point for replacement and repair. If it is not a man-made fault, the mobile phone is free of charge if the warranty period has not expired.

4. The touch screen is broken, calibrate the touch screen in the settings, if it doesn't work, you can only change the touch screen.

The LCD screen is not broken, just change the touch screen.

You're not doing something on the screen.

I once poured a Coke into it, and the screen was half usable and half non-working.

The failure of the screen part is the hardware failure of the touch module, and the PC side must not have a program that can directly control the screen, at least in civilian terms, and can only repair the mobile phone.

If the screen of your mobile phone is damaged (such as broken screen, warped screen, etc.), in order for your mobile phone to return to normal use, it is recommended that you bring the purchase invoice, repair card and mobile phone to the local Samsung service center, and the engineer will test the machine for you.

Try to reset or flash the phone first, if it's still like that, then change the touch screen, whether it's a single touch screen, depending on your phone model.

If the touch screen is broken, the whole screen has to be replaced, hundreds of dollars, go to the mobile phone after-sales service to check it, maybe it's not the screen is broken, it's the sensor that's broken.

It is estimated that yes, if you want to change it, the entire screen will have to be replaced, **, it is estimated that it will be 100 yuan.

Xiaomi Mi 4 mobile phone screen is an integrated screen, so you can only replace the screen assembly, it is not recommended to go to the mobile phone store to replace it, because it will be very expensive, and it may take a while, time-consuming and expensive, you can go to the Internet to buy the screen and install it yourself, only one or two hundred yuan, Fengyun Technology, you can learn about it.

I think a capacitive screen can be regarded as a real touch screen. The capacitive screen is sensitive, so you only need to touch it with your fingers and gently swipe it on the screen, so there is no stylus on mobile phones with capacitive screens. The operation on the resistive screen needs to be forced, and most of the stylus we see are resistive screens.

Most Nokia phones are resistive.