How to Make a White Screen on a Xiaomi Phone: Safe and Hidden Techniques

The white screen on Xiaomi’s smartphone may be needed for a variety of purposes, from testing the display for broken pixels to creating a homogeneous background for photos or video shooting. Unlike the popular myth that it requires special hardware or root rights, most modern Redmi devices are designed to be used for this purpose, POCO Mi allows you to activate the white screen with standard means – the main thing is to know where to look.

In this article, we will discuss 5 working ways to turn on the white screen on Xiaomi phones, starting with the simplest (through display settings) and ending with the hidden functions of the engineering menu. Particular attention will be paid to security: some methods can lead to overheating of the matrix or system failures if you use them for too long.

Important: instructions are relevant to devices on MIUI 12-14 (including global and Chinese firmware versions) If you have an older version of the system, some menu items may differ, we will warn you about this separately.

Method 1: Standard setting "Color mode"

The most obvious and safe method is to use the built-in display settings, which is suitable for most Xiaomi models, including the Redmi Note. 10/11/12, POCO X3/X4/X5 and the flagship Mi series 11/12/13. Main advantage: no need to install third-party applications or activate hidden features.

To turn on the white screen:

1. Open the Settings → Display.
2. Select Color Mode (or Color Scheme in some firmware).
3. Scroll down and tap the User option (if not, skip this step).
4. Move the color temperature sliders to the extreme right position (maximum "cold" hue).
5. Set saturation and contrast to a minimum.
6. Return to the main display menu and activate Adaptive Backlighting (if it is disabled).

After this manipulation, the screen will become almost white, but with a slight bluish hue.

• 📱 Install wallpaper on the main screen in format #FFFFFF (pure-white).
• 🔍 Enable Reading Mode (Settings) → Display. → Read mode) and set the filter to 0%.
• 🌡️ Turn off automatic brightness control.

⚠️ Warning: Prolonged use of the screen at maximum brightness with a white background can lead to accelerated wear of the matrix (especially on the screen). AMOLED-We recommend limiting your work to 10-15 minutes of continuous operation.

Method 2: Engineering menu (hidden display tests)

All Xiaomi smartphones have a hidden engineering menu, where hardware components including the display are available.This method allows you to turn on a truly white screen without shades, but requires caution: improper actions in the engineering menu can disrupt the sensors or camera.

Instructions for entry:

1. Open the Phone app.
2. Enter ##36446337## (for MediaTek) or #4636## (for Qualcomm).
3. In the menu that appears, select Hardware Testing → Display.
4. Slip on the White Screen Test (or similar item).

The screen will turn completely white.

• 🔙 Press the Back button (some models require 3 seconds to hold it).
• 🔄 If the screen is “hang”, restart the phone with a long press on the power button.

⚠️ Attention: On some firmware MIUI If nothing happens after you enter the code, check if you have access to hidden settings disabled through Settings. → Additionally. → Special facilities → For developers.

Method 3: Applications for screen calibration

If standard methods don't produce enough "pure" white, you can use third-party utilities that not only allow you to display a uniform white background, but also offer additional features: check for broken pixels, gradient tests, adjusting the gamma curve.

Top.-3 Proven applications for Xiaomi:

• 📲 Screen Test (from IceColdApps) – supports tests of all primary colors, including white, with the ability to lock the screen.
• 🎨 Display Tester – Offers advanced brightness and contrast settings for fine tweaking of hue.
• 🔍 Dead Pixels Test – specializes in finding broken pixels, but has a full-screen white background mode.

How to use:

1. Install the app from Google Play (or Mi App Store for Chinese firmware).
2. Run it and select the White Screen test.
3. To exit full screen mode, swipe your finger from the bottom edge of the screen upwards (guest return to the screen). MIUI).

Advantages of this method:

• ✅ No risk of screen hanging (app easily shuts down).
• ✅ Additional tools for display diagnostics.
• ✅ It works even on devices with blocked engineering menus.

💡

If after using the application the screen became dim, check the brightness settings in Settings → Display. → Automatic brightness. Some utilities reset this parameter.

Method 4: Developer Mode (for advanced users)

The developer menu contains options that allow you to force a white interface to the system, which is suitable for those who are willing to sacrifice a standard theme. MIUI Importantly, once activated, all system menus, notifications and wallpapers will turn white.

Step-by-step:

1. Activate Developer Mode: Go to Settings → About Phone. Tap 7 times on MIUI Version.

Settings → Additional → For Developers

Simulation of flower space

Color Space

Monochromacy

Reboot the phone.

When you reboot, the interface will be black and white, so you can get back the colors.

1. Go back to the developers again.
2. Choose a Simulation of the Space of Flowers → Disconnected.
3. Reset the device.

⚠️ Attention: On some firmware MIUI This mode can cause artifacts when watching videos or running apps (e.g., TikTok or YouTube will display sepia videos.

Method 5: ADB-Teams (for technical specialists)

This method is suitable for users familiar with the ADB (Android Debug Bridge allows you to force a white background to be set at the system level, bypassing interface constraints. ADB It can cause malfunctions in the phone.

Instructions:

1. Install Platform Tools on PC (download from the Android Developers website).
2. Enable USB Debugging in Settings → For Developers.
3. Connect your phone to your PC and type in the command line: adb shell settings put global force_dark 0 adb shell settings put secure ui_night_mode 0 This will turn off the dark topic at the system level.
4. For forced white backgrounds, use: adb shell am start -a android.intent.action.VIEW -d "color://white"

To return the standard settings, do:

adb shell settings put global force_dark -1


adb shell settings put secure ui_night_mode 1

This is the most flexible method, but requires:

• 🖥️ Skills of working with the command line.
• 🔌 PC connections (not working on Wi-Fi on all models).
• 🛠️ Possibility of rollback of changes in case of errors.

💡

ADB-Teams are the most powerful tool to control the display, but also the riskiest. Use it only if you are confident in your actions or under the guidance of a specialist.

How to return a normal screen if it is “hang” on white

Sometimes, after using hidden features or engineering menus, the screen remains white and the interface is left white. MIUI It doesn't respond to the press. Here's what to do in this situation:

Mild discharge:

• 🔄 Hold the power button for 10-15 seconds until the phone restarts.
• 📱 If the screen remains white after rebooting, try a return gesture (swipe your finger from the bottom edge upwards).

Resetting the display settings:

1. Connect your phone to your PC and use it. ADB: adb shell settings reset global adb shell settings reset secure
2. Or manually reset the settings in Settings. → System system → Resetting settings → Reset the display settings.

Last chance is a safe mode:

• 🛡️ Hold the power button, then tap and hold the power off. → Safe regime.
• In Safe Mode, remove newly installed apps or undo changes to the engineering menu.

Frequent Mistakes and How to Avoid Them

When you try to turn on a white screen, users often face typical problems, and here are the most common ones and ways to prevent them:

1 The screen does not become completely white.

• 🎨 Reason: Overlay of color filters (e.g. Reading Mode or Vision Protection).
• 🔧 Solution: Turn off all filters in Settings → Display.

2.After exiting the engineering menu, the screen flashes

• ⚡ Cause: Conflict with automatic brightness control.
• 🔧 Solution: Turn off Adaptive Brightness and set the Brightness manually.

3.Apps are displayed with artifacts

• 🖼️ Reason: Monochromacy mode activated in developer settings.
• 🔧 Solution: Return color settings to Developer State Unplugged.

4.The white screen turns on on on itself

• 🤖 Cause: Failure to work MIUI virus-proof.
• 🔧 Solution: Check the phone with antivirus (such as Mi Security) and reset the display settings.

💡

If you need a white screen to check the display for broken pixels, use the sequence: white → red → green → blue-colored → This will help to identify defects in different subpixels.

FAQ: Answers to popular questions