1 Check whether dark mode is on.
When "Dark Mode" is turned on, the screen background will be adjusted to a dark tone. I suggest you turn it off. Closing method:
Go to "Settings", search, and click "Dark Mode". If the switch is on, turn it off.
2 Check whether the "sleep time"/"stop time" for healthy use of the mobile phone is turned on.
If the "Sleep Time"/"Stop Time" for healthy use of the mobile phone is set, and the switch for graying the screen is turned on, the screen will be grayed after the limited time is reached. I suggest you turn off this function directly (some models use the mobile phone healthily, and the screen graying switch is not supported when stopping). Closing method:
Go to Settings > Healthy Use of Mobile Phone > Sleep Time/Stop Time and turn off the screen graying switch.
3 Check whether the color correction switch is turned on.
"Color correction" is to help friends with poor eyesight identify screen colors more conveniently. People with normal vision may feel that the screen color display is abnormal after opening it. Turn off this function if you don't need it. Closing method:
Go to Settings, search, and click Color Correction. If the switch is on, turn it off.
4 Check whether the "color inversion" function is turned on.
Color inversion can change the display color of text and background on the screen. After the phone is turned on, the phone will turn into white characters on a black background. Turn off this function if you don't need it. Closing method:
Go to "Settings", search, and click "Color Inversion". If the switch is on, turn it off.
5 Check whether the analog color space is open.
If the developer option is enabled on your mobile phone, please enter the settings, search and click "Analog Color Space", and select the status of "Analog Color Space" as "Disabled".
If the "simulated color space" is not found, it means that the developer option is not turned on on your mobile phone. Please check other scenarios.
6 If the above troubleshooting fails to solve the problem, you can try to restore all the settings of the mobile phone.
If the problem still exists, please back up important data in advance (WeChat /QQ and other applications need to be backed up separately) and bring the purchase voucher to the customer service center for testing and processing.