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If your phone's keys are out of order, we recommend you:
1.If you cannot use the back button to go back to the previous interface or exit when running a program, it is recommended to click the home button to return to the standby interface and try to re-enter the program.
2.Turn off your phone and restart it.
3.If the back button, menu button, recent application button, and home button of your phone are not available, it is recommended to uninstall and delete the recently installed software.
If the problem persists, it may be a problem with the internal hardware, it is recommended that you bring the three-pack certificate of the mobile phone and send the mobile phone to the nearest Samsung service center for the engineer to check the machine.
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1. Failure of the touch screen of the mobile phone: If the touch screen and buttons of the mobile phone are physically damaged, it may be that some of the original parts of the touch screen are loose or damaged, and they need to be sent to the hospital for reinforcement and welding, or the screen or components need to be replaced. The touch screen of the mobile phone is out of order, and the buttons are normal.
The touch screen is loose and damaged, and needs to be sent for repair or replacement. The touch screen of the mobile phone is biased, which can be corrected, but it is still biased after correction. When restoring the factory or grid code calibration, the touch screen is deliberately changed.
The mobile phone will be corrected when it is turned on, and it can be calibrated, but it is not possible to complete the calibration, you need to replace the touch screen grid chip, write the whole font, plant the CPU, solder or change the touch IC, check whether the touch IC is open around the assembly components, scratch the cover, and change the cable of the flip cover machine. If the touch of the mobile phone fails, the disassembly is normal, and the installation fails: the four sides of the touch screen are too tight, the sealing strip is removed, the root of the touch screen lead is disconnected and virtually connected, and the related components of the motherboard are virtually welded.
Today's mobile phones are capacitive touch screens, and the signals are identified by the difference in the change of the capacitance value of the touch point, so the possible reasons why the touch screen and the return button of the mobile phone do not respond are: 1. The touch screen is destroyed by ESD (electrostatic discharge), resulting in open or short, especially the key position, and the ability to resist ESD is generally weak; 2. The touch screen of the mobile phone is flooded, and the water has a great impact on the capacity value, so there must be no way to touch it.
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If the phone button fails, it is recommended to return the back button to go back to the previous interface or exit, it is recommended to click the home screen key to return to the standby interface and re-enter the program to try.
If the phone's back button, menu button, recent application button, and home button are not available, it is recommended to uninstall and delete the recently installed Li Zhi software.
Here's how to fix it:
Press the power button to turn off the screen, press the power button again to turn it on, then press the back button to normal, open the back cover and remove the battery and turn it back on. Pressing the back button is normal.
Press the back button normally after resetting the factory, press the back button normally after re-flashing the machine successfully, consider the return button damage, replace the body or turn on the machine to check whether there is too much dust.
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Summary. Hello, I have helped you find the result; If your phone's back button doesn't respond when pressed, there could be a few reasons: System or app crashes
If an application or system has an unusual problem, it can cause some keystrokes to become unresponsive, including the back key. At this point, you can try restarting the app or system, or restart your phone. Broken keys:
If the return button is used for a long time or pressed for a long time, it may suffer physical damage, resulting in the failure of the key. At this time, you need to contact the after-sales maintenance of the mobile phone for repair or replacement. Software Conflicts:
If there is a conflict between the phone system or the application, it may also cause the back key to not respond. You can try quitting the app or uninstalling the app that might be causing conflicts. System Setup Issues:
In some cases, your phone's operating system settings may cause the back key to become unresponsive. You can check the settings related to the back key, such as the location and type of the navigation bar, in the system settings. If none of the above methods can solve the problem, you can consider contacting the mobile phone manufacturer to repair or replace the mobile phone.
I hope I can help you!
Why is my return key not working.
Hello, Qinqiao has helped you query the results; If your phone's back button doesn't respond when pressed, there could be several reasons: System or app crash: If an app or system has an unusual problem, it may cause some keystrokes to become unresponsive, including the back key.
At this point, you can try restarting the app or system, or restart your phone. Damaged keys: If the back key is used for a long time or pressed for a long time, it may suffer physical damage, resulting in the failure of the key.
At this time, you need to contact the after-sales maintenance of the mobile phone for repair or replacement. Software conflicts: If there is a conflict between the phone system or the app, it may also cause the return key to not respond.
You can try quitting the app or uninstalling the app that might be causing conflicts. System settings issues: In some cases, your phone's operating system settings may cause the back key to become unresponsive.
You can check the settings related to the back key, such as the location and type of the navigation bar, in the system settings. If none of the above methods can solve the problem, you can consider contacting the mobile phone manufacturer to repair or replace the mobile phone. I hope I can help you!
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Hello, what should I do if the mobile phone button does not rebound: 1, it may be caused by the weakness or damage of the contact shrapnel of the tact switch corresponding to the volume key. This kind of problem cannot be repaired by ordinary people, and you need to go to a special mobile phone repair shop to replace the switch cable.
2. It may be that something is stuck inside the volume button, resulting in the volume button not being elastic. Try wiping the volume keys with an alcohol-soaked cotton cloth to see the effect. 3, the internal hardware damage of the mobile phone volume button leads to no elastic mobile phone, the full name is mobile**or wireless**, commonly known as mobile phone, originally just a communication tool, and in the early days, it is containing the common name of "big brother", which is a portable ** terminal that can be used in a wider range, which was first developed from the battlefield mobile machine manufactured by Bell Labs in 1940.
In 1958, Soviet engineer Leonid Lao Xun. Kupriyanovich invented the -1 type move**. In 1973, Martin Cooper, an American Motorola engineer, invented the world's first commercial mobile phone.
Mobile phone communication has gone through the 2G era and the 3G era, and has developed to the 4G era so far, and the 5G era is also closely followed, and 5G has been commercialized in China.
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You can try it by following these steps:
1. Press the power button to turn off the screen and press the power button again to turn it on. Press the back button again to normal.
2. Open the back cover, remove the battery, and turn it back on. Pressing the back button is normal.
3. Press the back button normally after factory reset.
4. After re-flashing successfully, press the back button normally.
5. Consider the damage of the return button, replace the body or open the machine to check whether it is affected by too much dust.
6. Consider line faults for touch screen buttons. Turn on the machine to check the line.
If so, it should be a problem with these applications, not the problem of the mobile phone itself, there are many applications on the market, some applications occupy a high proportion of mobile phone resources, which will lead to some problems with the mobile phone, and even some applications may have viruses, resulting in indiscriminate deduction of mobile phone fees and traffic, it is recommended to go to Huawei AppGallery**Related applications; If it still appears after uninstalling these problematic apps, it is best to back them up, and then restore the factory settings to confirm whether there are any problems; In the "System Update", confirm whether you have received the prompt for system update, connect to WLAN, ** the latest system, and update the system to the latest. If the problem persists, we recommend that you back up your phone data and repair it at a Huawei after-sales location.
If there is a problem with the lock screen key of the Samsung mobile phone, in order to understand and solve the problems of the Samsung mobile phone in a more targeted manner, it is recommended to send the mobile phone to the nearest Samsung service center for testing, and the service center will determine the specific problems, accessories and other hidden faults of the mobile phone according to the test results. >>>More
I guess I'm going to find someone to tune it up.
2.You can check the service center address on Huawei's official website.
There is no "backup power" for vivo iqoo mobile phones, please charge it in time if the power is insufficient.