Why did the screen of the oppo phone suddenly turn gray and white, what happened?

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

1.If the screen is grayed out, you may have set a sleep time for healthy use of your phone.

When 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. Closure Method:

2.If the screen turns gray, you may be opening an eBook.

mode, when turned on, the screen will be grayed out for reading and text scenes, 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 phone supports fingerprint or face, the fingerprint and face information will be restored, and other types of data or files will not be deleted. Find Devices, Users & Accounts, Device Manager.

App settings, etc., will not be reset.

If the problem persists, it may be a problem with the screen itself, please back up important data in advance (third-party applications such as QQ and WeChat need to be backed up separately), and bring the purchase voucher to the customer service center for testing and processing.

It should be that the phone is overheating, which affects the screen cable.

You may have clicked on the screen grayscale settings, and the restoration method is as follows:

1.Open Settings on your phone's home screen.

2.Select General, and then select Accessibility.

3.You can see [grayscale] in the accessibility function, and the screen will not be black and white when the grayscale is turned off.

4.Generally, turning on grayscale will reduce the use of lighting, so when the phone is about to run out of power, if there is no place to charge, you can turn on grayscale.

If you are using a Huawei phone, maybe your phone turns on e-book mode, the screen will turn gray after turning it on, how to turn it off: Go to Settings, search for and touch e-book mode, and turn off e-book mode.

If the above methods still don't solve the problem, you can try resetting all settings on your phone

2) Go to the Reset All Settings page and click Reset All Settings.

3) After entering the lock screen password, confirm it again and tap Reset All Settings.

1> If your phone doesn't have a lock screen password, you don't need to enter it.

2> The path to EMUI is Settings > Advanced Settings > Backup & Reset. When you use reset settings, the switch of the app clone will be turned off, resulting in data loss for the app clone. Before doing this, please back up the data of the clone app.

Not covered by EMUI or above).

3> After all settings are restored, when you set the face or fingerprint unlock, you need to enter the app lock password to verify the binding.

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.

Make an appointment for service. Boarding service.

This is caused by the phone having the developer options color reversal feature turned on, an error in the phone program, or a hardware problem with the phone.

1. Upgrade the system of the mobile phone to the latest, then restart it after shutting down and then check whether the screen color of the mobile phone is normal.

2. Turn off the developer options of the phone, here we take the OPPO R9S mobile phone as an example, the specific method is as follows:

<>3. Bring your mobile phone and warranty card to the official OPPO mobile phone repair center for maintenance.