Why does my Lenovo Android 680A phone always have a stuck screen and the touch screen doesn t work?

1. Go to after-sales Lenovo's after-sales service is still good, if it is best to spend no money during the warranty period, you can get it well! The touch screen is not working, and the screen is problematic!

2. Flash the machine! If the official breaks out the upgrade package, that's the best! If you don't have a hoho, go to the forums and find one! If it still doesn't work after flashing, it may really be a problem with the screen!

3. Go to the after-sales service, after the warranty period, spend money to repair, and it is very expensive. Of course, you can find a tutorial on the Internet, and then go to a certain treasure to buy what you want, such as a screen or something

My N81 is the cable screen that I replaced

We apologize for any inconvenience this may cause.

a. Stuck screen and crash problem:

1. Please recall whether it appears under individual software or operations, such as specific software and third-party software, it is not excluded that it is caused by compatibility problems, and it is recommended to uninstall and observe or replace other software of the same type for use;

2. It is recommended to optimize and adjust the equipment system

a. You can use software such as Le'an Security and 360 Mobile Phone Security Guard to regularly adjust and improve the stability of the equipment system;

b. In the process of use, you can close the background programs that are not used to ensure that there are enough resources such as running memory to support the current program operation;

c. It is recommended to uninstall useless or infrequently used software, which can prevent the self-start of such software and occupy running memory;

d. It is recommended to use mobile phone security software (such as the latest version of software such as Le Security, 360 Guard) to manage the software in the mobile phone at boot self-start, here is an example of Le Security: due to the difference in the version of Le Security, there may be differences in the menu path, take the version as an example, the path and operation steps are as follows: "Le Security" - "Mobile Phone Acceleration" - "Self-start Management", the self-start project that needs to be restricted is manually closed, please refer to it.

3. The above operations cannot be significantly improved, it is recommended that you back up the fuselage data for factory reset.

b. Touch screen failure:

a. Failure in some areas of the touch screen:

1. It is recommended that you wipe and clean the screen first, and please avoid stains such as sweat on your hands to eliminate external interference;

2. Please confirm whether it appears in the interface of individual third-party software, if so, it may be caused by software abnormality or compatibility, it is recommended that you uninstall and reinstall or replace other types of software for use; At the same time, it is also recommended that you check whether there are any redundant applications running in the background of your phone, and if so, it is recommended that you completely exit the closing attempt;

3. If the above operation is invalid, the failure of the touch screen itself is more likely, it is recommended that you send it to the repair site in time to deal with it, and you can also back up the fuselage data before sending it for repair, and try to restore the factory settings to see if it can be improved.

b. All areas of the touch screen are out of order

1. It is recommended that you wipe and clean the screen first, and please avoid stains such as sweat on your hands to eliminate external interference;

2. If you have used the film on your mobile phone, it is recommended that you remove the film for attempt, and it cannot be ruled out that it is caused by the quality of the film;

3. Please confirm whether it appears in the interface of individual third-party software, if so, it may be caused by software abnormality or compatibility, it is recommended that you uninstall and reinstall or replace other types of software for use; At the same time, it is also recommended that you check whether there are any redundant applications running in the background of your phone, and if so, it is recommended that you completely exit the closing attempt;

4. If the above operation is invalid, please back up the fuselage data and try to restore the factory settings.

If the problem still cannot be effectively solved, for your normal use in the future, it is recommended that you take the time to go to a nearby Lenovo authorized repair station for specific testing and treatment.

Lenovo authorized repair site inquiry.

It is recommended to send it to the after-sales service, even if the configuration is poor, it will not crash for no reason.

Go to Settings - Applications - All, find the frequently used software, and clear the data cache, such as individual third-party software, it is recommended to uninstall and reinstall or install different software versions, which may be caused by software compatibility problems;

Use File Manager to long press to delete some unwanted files or transfer some files to other storage devices such as computers;

Use optimization software, such as Le'an, 360 Security Guard, etc., to speed up and clean up the space of the mobile phone, uninstall the Zaoli software that is not needed, and free up enough space to maintain the smooth operation of the software and system;

Back up the required data and perform a factory reset.

The above operations cannot be improved, and it is recommended to take the time to go to the local Lenovo after-sales site for testing and processing. Ming Kai.