Why does Lenovo K900 have a black screen for no reason

Dear Lenovo mobile phone users, hello! Sorry for the inconvenience caused to the normal use of your mobile phone. If your phone frequently "goes black" for no reason, it is recommended that you try the power button to see if it can light up the screen.

If it can be lit normally, it may be because of the timeout lock screen set under your phone's system settings - display - screen standby, it is recommended that you set a reasonable timeout lock screen according to your usage habits.

If the power button does not light up, it may be caused by the system crashing or shutting down.

If it is due to system problems, you can try to back up the important data of the body, and then restore the factory settings of the phone to see if it can be solved. (System Settings - Backup & Reset is available below).

Since we can't see the specific situation of your phone remotely, if the problem persists, it may also be caused by the display part of the mobile phone (such as poor contact of the internal cables, or damage to the display module, etc.) or the motherboard abnormality, it is recommended that you take the time to go to the local Lenovo service center to let the engineer help detect and solve it. You can log in to the official website to check the address.

It's okay, turn it off and restart it or go to the place where the phone is sold to flash it.

We apologize for any inconvenience this may cause and affect your use.

1.Please go to System Settings - Display - Brightness to check whether the brightness is in the automatic adjustment state, the automatic adjustment will turn on the light sensor, adjust the screen brightness according to the brightness of the surrounding environment, if you check it, it is recommended to cancel the observation;

2.If it appears under the interface of individual software, it is not excluded that the software is abnormal or caused by compatibility, first of all, please go to System Settings - Application - All, click on the software to clear the data, if it is invalid, it is recommended to uninstall and reinstall or replace other software of the same type;

3.If Lenovo Power Saving (Lenovo Power Saving) and other software are installed on the body of your product, please check whether the relevant screen energy saving settings are turned on, and turn them off for observation;

4.If the fault occurs recently, it is recommended that you back up your data (contacts, text messages, **, etc.), then go to your phone's settings, select Backup or Reset, and then select Factory Reset to try;

5.Lenovo K900The latest system version is: Viberom, it is recommended to upgrade to the latest version for observation, the upgrade method is: System Settings - About this machine - Version upgrade;

Lenovo Authorized Repair Site Query:

System problems Send it to the after-sales service.

0927 and a little will brush vibe is good.

I used to be too, but now I've changed my phone, junk phone.