The screen of the Lenovo A788T fails when charging

Dear Lenovo users, hello!

I'm sorry to trouble you with your phone.

According to the description, if the touch screen fails to jump when the phone is charging. It may be caused by the unstable output voltage and current of this charger and the change of magnetic field interfering with the touch screen. It is recommended that you try to change the standard charger for observation.

For more information about the problem of mobile phone screen touch screen failure, it is recommended that you refer to If the touch screen fails frequently, the same is true for standard charger charging, we recommend that you take the time to go to your local Lenovo after-sales service center to let the engineer help you detect and solve it on site. You can log in to the official website to check the address.

The reasons why the screen fails when the Lenovo A788T is charging are as follows:

1. The output voltage and current of the charger are unstable, and the magnetic field changes interfere with the touch screen.

2. The display screen is out of order.

Solution: 1. Unplug the charging cable after charging for half an hour, unlock the touch screen and try it;

2. Find a clean cloth to wipe the stains on the surface of the screen;

3. If the screen failure problem cannot be solved, it is recommended to restore the mobile phone directly to factory settings or send it directly for repair for comprehensive and detailed testing and processing.

Possible causes and solutions for the black screen of Lenovo A708T mobile phone:

1.Insufficient memory: When the phone runs too many programs at the same time, the phone runs too slowly, and it may crash.

Solution: Force restart your phone. Press and hold the "Power" button on the top or side of your phone for at least 10 seconds or so until the screen light turns off and restarts.

2.Caused by poor contact: The cable between the mobile phone screen and the motherboard is loose, mainly caused by the mobile phone being bumped.

Solution: Mobile phone after-sales repair or repair shop repair.

3.Caused by battery failure: The mobile phone battery is aging and the voltage is insufficient.

Solution: Replace your phone's battery.

Conflict-induced: The application software conflicts cause a black screen.

Solution: Uninstall the incompatible application.

5.Improper flashing: The system motherboard of the flashing firmware upgrade is not supported, and the flashing process is abnormal, resulting in incomplete flashing.

Solution: Reflash the device and use the old version of firmware.

1.It is recommended to remove the power supply, restart the device and try to charge it again, and do not rule out the abnormal operation of the program in the device.

2.Please replace the charger and data cable to try to charge first, it is recommended to use the original charger and data cable;

3.If possible, it is recommended to replace other batteries for observation, and the failure of the battery itself cannot be ruled out;

4.If the replacement is invalid, the system may be abnormal, and it is recommended to back up the data to prevent the risk of data loss and try to restore the factory settings.

If restoring the factory settings still can't solve the problem, it is recommended to go to the Lenovo maintenance site for testing and maintenance in time.

Hello. According to your description, probably.

It is caused by the loose or abnormal tail plug of the mobile phone, because we cannot understand your personal usage remotely, and we cannot make direct guesses, it is recommended that you go to the Lenovo after-sales maintenance site for specific detection and treatment.

You can visit the query nearest site. The business hours of the maintenance site are usually from 9:00 to 18:00 from Monday to Sunday, except for holidays, and the stations will be slightly adjusted according to their own operations.