The screen of Huawei nova7 mobile phone has become black and white, how to change it back?

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.

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.

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.

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.

Answer: Good afternoon, dear The phone becomes a black and white screen, and the color display is not normal, you can check it according to the following methods: 1. Enter the settings, search and click the color reversal, if the switch is on, turn off the switch. (If it is not found, it means that the mobile phone does not support this function, check other scenarios) 2. Enter the settings, search and click on dark mode, if the switch is on, turn off the switch.

If it is not searched, it means that the mobile phone does not support this function, check other scenarios) 3. Enter the settings, search and click the e-book mode, and turn off the e-book mode (if it is not searched, it means that the mobile phone does not support this function, check other scenarios).

Generally, you can try to restore the initial settings, if it is only caused by the system or software, after restoring the initial settings, you can return to the normal display.

Settings - Display & Brightness - E-book mode turned off. Everything else is.

A factory reset will do the trick

Did you set the display settings with options for black and white or monochrome or color blindness? It should be in the display settings or advanced settings, different mobile phones have different settings menus, you look for them.