What should I do if the lock screen of Lenovo A800 mobile phone can t be turned on

Hello, according to the problem you described, it is recommended that you bring your ID card and purchase invoice to the service station, and the service station engineer will provide you with a link to query Lenovo mobile phone service outlets in order to solve the problem.

If it's the ** lock screen, connect to the computer and uninstall it, if it's the system's own number or slide the lock screen, then restore the exit settings, Shut down key plus key, consult me for details,

Connect your phone to the computer and uninstall the lock screen software.

I'm from Mars, and I just came to Earth and didn't understand anything.

I also have the same problem, solving.

Dear Lenovo users, hello!

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You can clear the unlock passcode by entering the recovery mode of the phone, clearing the data factory reset, and clearing the unlock passcode.

The method of double clearing is as follows:

1.In the power-off state, press and hold the phone's power button, volume +, and volume at the same time.

2.Release the button when the screen lights up and wait for the following picture to appear.

3.Use the Volume+ and Volume—keys to adjust the bright bar to "Wipe Data Factory Reset", i.e. "Clear Data Restore Factory Settings", and press the Power button to confirm.

4.Use the Volume+ and Volume—keys to adjust the light bar to "yes, delete all user data" and press the power button to confirm.

5.Wait for a while until the screen appears, select "Reboot System Now" to restart your phone, and press the power button to confirm.

6.Wait for the phone to reboot into the system, and no longer enter the password to enter the system directly.

Hello, sorry for the inconvenience, if you forget the graphic unlock password is unable to enter the mobile phone system, you can contact the local Lenovo after-sales service station, with the help of the engineer to repair, related matters can be further communicated with the engineer.

Provide you with Lenovo mobile phone repair outlets inquiry:

About the use of Lenovo mobile phones and related resources, you can also communicate on the Lenovo mobile phone music forum.

House key + Power on button + Down button Up key to enter recovery mode, then cach clear

Dear Lenovo mobile phone users, hello!

If you have forgotten the boot password of the screen you set, you need to enter the factory mode to clear the data.

This operation will erase all data (contacts, call information, etc.) stored in the device body, so the operation is risky and the operation must be cautious

a.After the phone is completely powered off, press and hold the power button and the volume up button at the same time until you enter the factory mode interface and release the buttons.

b.In this interface, the volume up button can be used to move the option, and the volume down button is the confirmation button, which moves the option to Clear eMMC for the confirmation operation.

After the operation is completed, you can restart it, and the boot password will be deleted after the data clearing operation is completed.

If you can't do it yourself, you can take the time to go to a Lenovo authorized service network and have an engineer assist you in handling the problem.

Hello, sorry for the inconvenience.

a.Some areas of the touchscreen are malfunctioning:

1.It is recommended that you wipe and clean the screen first, and 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, and it is recommended that you uninstall and reinstall or replace other types of software.

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 for processing, and you can also back up the body data and try to restore the factory settings operation before sending it for repair to see if it can be improved.

b.All areas of the touchscreen are out of order:

1.It is recommended that you wipe and clean the screen first, and 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 and try it, which is not ruled out due to 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, and it is recommended that you uninstall and reinstall or replace other types of software.

4.If the above operations do not work, please back up the fuselage data and try to restore the factory settings.

5.If the problem still cannot be effectively solved, it may be caused by the failure of the underlying driver of the system or the touch screen itself.

You can visit the official website for inquiries:

You are welcome to contact us at any time or visit Lenovo Lewen (for consultation.

For the problem of the failure of the touch button at the bottom of the mobile phone screen, it is recommended to use the following situations and methods to try to solve the problem:

a. Intermittent occurrence: It may be that the current device is running insufficient resources or the system file is abnormal, resulting in the inability to respond to the operation in time. Here it is recommended to optimize the system, and regularly close the background system program, if it cannot be improved, it is recommended to back up the body data for factory reset attempt;

b. High frequency appears or has been completely unresponsive: the touch button under the screen belongs to the touch screen part, if the high frequency or has completely failed, it is more likely to be caused by the abnormal underlying drive of the system or the failure of the touch screen itself, it is recommended to send it to the repair site in time to ensure the normal use of the follow-up.

Sorry for the inconvenience!

1.The first thing to check is whether it is caused by environmental problems, such as excessive heat or too humidity, and try it in a normal environment.

2.In addition, it depends on whether it is only like this when charging, because the capacitive screen is afraid of electromagnetic interference, and it is easy to interfere when charging, so it is recommended not to use the mobile phone when charging, and just turn off the screen to charge.

3.If it's like this when it's not charging, it's an abnormality in the phone, restart it to see if it can be solved, if it doesn't work, it is recommended that you go to the repair station to test it, and see if the brush machine can rewrite the touch screen driver If not, it won't rule out that it's a hardware failure, and the touch screen may have to be repaired or even replaced.

Official website authorized maintenance site inquiry: