Lenovo P780 screen black screen can t be opened

It seems that it should be a problem with the system, so try to brush the machine.

We apologize for the inconvenience.

In the case you described, if your device does not respond when you click the power button and does not turn on, we recommend that you perform the following simple troubleshooting attempts:

1.It is recommended that you remove the back cover and press the red reset button to restart the attempt;

2.It is recommended that you use the standard charger to charge for about 30 minutes, and then press and hold the power button again.

If the problem still cannot be effectively solved, it is not ruled out that it is caused by the failure of physical buttons or related power management components, for your normal use in the future, we recommend that you take the time to go to a nearby Lenovo authorized repair station for specific testing and treatment.

Lenovo authorized repair site inquiry.

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.

The solution to the Lenovo P780 phone crashing and not turning on is as follows:

1. Remove the back cover, click the red reset button with a needle, and then try to turn on the computer, if it can be turned on, it is recommended to restore the backup data to factory settings to improve the phenomenon of crash and flickering screen;

2. If it is invalid, it is recommended to connect the standard charger to charge for half an hour and try to turn it on;

3. Invalid direct repair and after-sales warranty processing.

Is it a flashing failure?

It can be restored with a line brush.

It can be repaired by flashing. The official system of the line brush,It will be restored to the way it was bought, Lenovo P780The chip of the quad-core MTK used,So you can use the MTK's line brush tool to brush into the official system。

The bag has been sent to you, and there are instructions in the operation method.

It seems to be a system software problem, it is recommended to flash the phone to the customer service center to solve it.

When you turn it on, press f8 for the last time to configure it correctly to see if it works, and if you can, hurry up with 360 various repairs!!

Hello, sorry for the inconvenience.

In response to your feedback, if the mobile phone cannot be turned on at present, it is recommended to refer to:

It is recommended that you reinsert the battery to restart the attempt, if you have its size, it is recommended that you replace the battery before comparison;

2.If you can access the system, it is recommended that you back up the body data to prevent the risk of data loss, and try to restore the factory settings.

It is recommended that you use the standard charger to charge for about 30 minutes, and then press and hold the power button again.

If the problem cannot be effectively solved, we recommend that you take the time to go to a nearby Lenovo authorized repair station for specific testing and treatment.

Hello, according to the situation you described, reinsert the battery and store the mold card, restart the mobile phone to see if it can be sold normally.

If it does not work, it is recommended to contact the after-sales service station for testing.

Hello, sorry for the inconvenience.

According to your feedback, it is recommended to refer to:

It is recommended that you reinsert the battery to restart it, if you have other batteries, it is recommended that you replace the comparison segment;

2.If you can access the system, it is recommended that you back up the body data and try to restore the factory settings;

It is recommended that you use the standard charger to charge for about 30 minutes, and then press and hold the power button again.

If the problem still cannot be effectively solved, we recommend that you take the time to go to a nearby Lenovo authorized repair station for specific testing and treatment.