How to gray the screen of Huawei mobile phone nova7 when it becomes black and white

The phone becomes a black and white screen, and the color display is not normal, you can check it as follows:

1.Check if the sleep time for healthy use of the phone is turned on Downtime function: Settings > Healthy use of the phone > Sleep time Downtime, when this setting is turned on, when the phone reaches the set sleep time, the screen will turn black and white.

2.Check if the eBook mode is turned on:

3.Check if the color correction switch is turned on:

4.Check if the color inversion feature is turned on:

5.Check to see if Dark Mode or Dark Power Saver** is turned on.

Go to Settings > Battery > Dark Power Saver**If the switch is on, turn off the switch. (If it is not found, the mobile phone does not support this function, check other scenarios).

6.Go to Developer Options and check if the Mock Color Space switch is turned on, you can do the following:

7.If none of the above troubleshooting resolves, you can try restoring all settings. If the problem persists after all settings are restored, we recommend that you back up important data in advance (QQ and WeChat need to be backed up separately) and bring your purchase voucher to the Huawei Customer Service Center for testing.

The reason why the screen of Huawei phones turns black and white is that the color blindness mode is turned on, and you can choose to turn it off.

1. Directly in the settings window of your phone, click System and Update to jump.

2. At this time, a new page will pop up, and you need to select the developer option to enter.

3. Next, if it's okay, continue to browse the simulated color space.

4. In this way, after the color is determined back according to the diagram, the requirements can be realized.

1. Check whether the dark mode of the phone is enabled, you can turn off the dark mode in the drop-down menu bar or in the display and brightness settings.

2. Check whether the e-book mode is enabled, and turn off the e-book mode in the drop-down menu bar or in the display and brightness settings.

3. Check whether the super power saving mode is turned on, which can be turned off in the battery setting options.

4. Check whether the downtime function of the healthy use of the mobile phone is enabled, when the mobile phone reaches the set downtime, the screen will turn black and white. You can use your phone in Settings > Health, and turn off Healthy Use of Phone.

If your phone turns into a black and white screen and the color display is not normal, you can troubleshoot the problem by performing the following steps:

1 Check that Dark Mode is turned on

When Dark Mode is turned on, the screen background is darker. It is recommended that you turn it off. Closure Method:

2 Check whether the "Sleep Time" and "Downtime" of healthy use of the phone are enabled

If you set the "Sleep Time" or "Downtime" for healthy use of your phone, and turn on the switch that grays out the screen, the screen will turn gray when the time limit is reached. It is recommended that you turn off this function (some models do not support the screen gray switch during downtime). Closure Method:

Go to "Settings > Healthy use of mobile phone > Sleep time" and "Downtime", and turn off the screen gray switch.

3 Check if eBook Mode is turned on

4 Check that the "Color Correction" switch is turned on.

"Color correction" is to help friends with weak eyesight to identify the screen color more conveniently, and people with normal vision may feel that the screen color display is abnormal after turning it on. You can turn this feature off if you don't need it. Closure Method:

5 Check that the "Color Inversion" feature is turned on.

Color Inversion" to change the color of the text and background displayed on the screen. When turned on, the phone will turn into white on a black background. You can turn this feature off if you don't need it. Closure Method:

6 Check that Mock Color Space is turned on

7 If none of the above troubleshooting resolves, you can try resetting all settings on your phone.

Method Steps:

1. Click the [Settings] icon on the desktop of your phone.

2. Click [System & Update].

3. Enter the System and Update interface and find yourself in [System and Update].

4. Then click [Developer Options].

5. If you see that the phone is in a simulated color space [full color blindness], it must be a black and white screen.

6. Turn off the [Full Color Blindness] button so that the simulated color space is in the [Off] state. In this way, it is back to [Normal Screen].

1. Click the [Settings] icon on the desktop of your phone.

2. After that, click [System & Update].

3. Enter the system and update interface, and then click [Developer Liang and Soldier Options].

4. Keep scrolling down and see that the phone is in a simulated color space [full color blindness] state, which is the main reason why the phone screen has become black and white.

5. The solution is to turn off the [Full Color Blindness] button and let the simulated color space be in the [Off] state. In this way, it is back to [Normal Screen].

It's set according to the operation, and it's still a black and white screen.

If your phone's screen turns late or off-white, here's how you can do it:

1.If the screen is grayed out, you may have set the sleep time for healthy use of the phone Downtime, and turned on the switch to grayed out the screen, after the time limit is reached, the screen will turn gray, and some app icons on the desktop will be dimmed. It is recommended that you turn off this feature.

Closing method: 2If the screen turns gray, you may turn on the e-book mode, and after turning it on, the screen will turn gray for reading and text-based scenarios, if you don't need it, you can turn off this function. How to turn off: Go to Settings, search and tap E-book Mode, turn off E-Book Mode.

3.If the troubleshooting doesn't fix your issue, you can try resetting all settings on your phone.

If the problem persists, it may be the screen itself, so please back up important data (third-party apps such as QQ and WeChat need to be backed up separately) and bring your purchase voucher to the Huawei Customer Service Center for testing.

Huawei Customer Service Center.

Repair spare parts** inquiry.

Make an appointment for service.

I'm the screen of the phone has become black and white, and I don't know how to adjust the emotional sensitivity of the situation, that is, through the settings of the phone, find a factory reset on it.

You may turn on the reading mode, find the display adjustment in the settings, or you may turn on the full color blindness mode, this also has to find the system from the settings, click, find the developer options, and turn off the analog color options.

If you are using a Huawei phone.

If the screen becomes black and white, and the color display is abnormal, you can troubleshoot it by the following methods:

1.Check if sleep time for healthy phone use is turned on.

Downtime function: Settings > Healthy use of mobile phones > Sleep time Downtime, after turning on this setting, when the phone reaches the set sleep time, the screen will turn black and white.

2.Check to see if the eBook is open.

3.Check if the color correction switch is turned on:

4.Check if the color inversion feature is turned on:

5.Check to see if Dark Mode or Dark Power Saver** is turned on.

Go to Settings > Battery > Dark Power Saver**If the switch is on, turn off the switch. (If it is not found, the mobile phone does not support this function, check other scenarios).

6.Go to Developer Options and check if the Mock Color Space switch is turned on, you can do the following:

7.If none of the above troubleshooting resolves, you can try restoring all settings. If the problem persists after all settings are restored, we recommend that you back up important data in advance (QQ and WeChat need to be backed up separately) and bring your purchase voucher to the Huawei Customer Service Center for testing.

On your phone's settings screen, find Developer options in the list and click to enter the page. In the list of developer options, find the simulated color space and click enter. In the simulated color space interface, in the list of options, click Close to restore the phone color.

Huawei Technologies was officially incorporated in 1987 in Shenzhen, China. Huawei Technologies **** is a private communication technology company that produces and sells communication equipment, headquartered in the Huawei base in Bantian, Longgang District, Shenzhen, Guangdong Province, China.

Huawei's products mainly involve switching networks, transmission networks, wireless and wired fixed access networks, data communication networks, and wireless terminal products in communication networks, providing hardware equipment, software, services, and solutions for communications operators and professional network owners around the world.

Answer: Start by opening the settings on the desktop; 2.Then find Display & Brightness in the settings and turn it on; 3.Then click on Dark Mode in Display & Brightness; 4.Finally, turn off dark mode.

Ask if dark mode is off or black and white.

If your phone turns into a black and white screen and the color display is not normal, you can troubleshoot the problem by performing the following steps:

1.Check if sleep time for healthy phone use is turned on.

Downtime function: Settings > Healthy use of mobile phones > Sleep time Downtime, after turning on this setting, when the phone reaches the set sleep time, the screen will turn black and white.

2.Check to see if the eBook is open.

3.Check if the color correction switch is turned on:

4.Check whether the color reversal function is turned on

5.Check to see if Dark Mode or Dark Power Saver is turned on**.

Entering the settings > Battery > Dark power saving**If the switch is on, turn off the switch. (If it is not found, the mobile phone does not support this function, check other scenarios).

6.Go to Developer Options and check if the Mock Color Space switch is turned on, you can do the following:

7.If none of the above troubleshooting resolves, you can try restoring all settings. If the problem persists after all settings are restored, we recommend that you back up important data in advance (QQ and WeChat need to be backed up separately) and bring your purchase voucher to the Huawei Customer Service Center for testing.