Seeing your OnePlus 15 stuck in black and white can be alarming. Photos lose color, apps look dull, and the phone feels broken even though it still works. In most cases, this happens because a display or accessibility feature was enabled by accident, and the fix is usually quick.
Why Your OnePlus 15 Screen Is Black and White
- Bedtime Mode or Sleep mode is applying grayscale automatically.
- Accessibility color correction or grayscale is turned on.
- Digital Wellbeing features are limiting colors to reduce screen usage.
- A system glitch temporarily affects display rendering.
- Developer or experimental display settings were changed unintentionally.
1. Turn Off Bedtime Mode
Bedtime Mode is one of the most common reasons the screen turns monochrome. It applies grayscale to make the display less stimulating, especially at night.
Open Settings, and then tap Digital Wellbeing and parental controls.
Tap Bedtime mode, and then turn it off completely.
Lock and unlock the screen to check if colors return.
2. Disable Grayscale in Accessibility
Accessibility settings include color adjustments meant to help with visibility. If grayscale is enabled, your entire screen will appear black and white.
Open Settings, and then tap Accessibility.
Tap Color and motion, and then turn off Grayscale or Color correction.
Exit Settings and check the display again.
3. Check Digital Wellbeing Focus Settings
Some focus tools reduce colors as a visual cue to stop phone usage. This can make it seem like the display is broken when it is actually intentional.
Open Settings, and then tap Digital Wellbeing and parental controls.
Tap Focus mode, and then disable any active focus profiles.
Make sure no schedules are currently running.
4. Restart the Phone
A temporary system glitch can cause the display to render incorrectly. Restarting refreshes the display driver and restores normal color output.
Swipe down from the top to open Quick Settings.
Tap the Power icon, and then tap Restart.
Wait for the phone to boot fully and observe the screen.
5. Reset Display Settings
If colors are still missing, display preferences may be misconfigured. Resetting them restores default color behavior without deleting your data.
Open Settings, and then tap Display.
Tap Color calibration, and then reset it to default.
Return to the home screen and check for normal colors.
A monochrome screen on the OnePlus 15 is rarely a hardware issue. Once the correct mode or setting is turned off, full color usually comes back immediately, making the phone feel normal again.
FAQs
Why did my OnePlus 15 suddenly turn black and white overnight?
This usually happens when Bedtime Mode or a scheduled Digital Wellbeing feature activates automatically during the night.
Can grayscale mode damage my screen?
No. Grayscale only changes how colors are displayed and does not affect the screen hardware.
Should I factory reset if the screen stays monochrome?
A factory reset is rarely needed. Most cases are fixed by disabling Bedtime Mode, accessibility color settings, or restarting the phone.
