How to turn on split screen on Xiaomi Redmi Note 9 Pro: all ways + fix errors

Why the Redmi Note 9 Pro doesn’t have a split screen and how to fix it

Owners of the Xiaomi Redmi Note 9 Pro often face a problem: the split screen function is either missing from the menu or not working correctly. The reason lies in the features of the MIUI firmware and the hardware limitations of the Snapdragon 720G processor. Unlike flagship models (for example, Mi 11 or POCO F3), where multiwindow activates by default, on budget devices it has to be enabled manually – or even installed additionally.

In this article, you will find 3 working ways to split the screen on the Redmi Note 9 Pro (including models with global and Chinese firmware), as well as solutions for typical errors: black screen partition, no button in the menu and gesture conflicts. All instructions are relevant for MIUI 12/13/14 and checked on firmware V12.5.3.0.RJWMIXM and later.

⚠️ It is important if your smartphone is running Android 10 (not 11)+), Some methods may require root rights or a rollback to factory firmware. → The phone. → Version. MIUI.

Method 1: Separating the screen through gesture (official MIUI method)

The easiest way is to use the built-in multi-window feature, which is hidden in gesture settings. It works on all Redmi Note 9 Pro firmware, but is often disabled by default.

To activate it:

1. Open Settings → Special Opportunities → Multiconference.
2. Turn on the "Screen split" switch.
3. Return to Settings → Additional → Gestures and activate the option “Swipe up for splitting”.

Now for split-screen:

• 📱 Open the first app (for example, YouTube).
• 👆 Swipe your finger up from the bottom edge and hold on for 1 second – a recent app panel will appear.
• 🔄 Click on the app icon (at the top of the window) and select "Separate screen".
• 📲 Select the second app from the list of recent.

Both apps support multi-window (not games!)

MIUI version not lower than 12.0.3.0

Power saving modes for applications are disabled

Freely. ≥1.5 GB of RAM-->

⚠️ Warning: If one of the applications closes itself after splitting, check the battery settings. → Annexes → Application management → [name] → Battery and select "No restrictions".

Method 2: Separate through the notification panel (alternative method)

If the gestures don't work, try activating the split screen through the Quick Settings Panel, a method that is suitable for MIUI 13+ firmware and requires pre-configuration:

Steps:

1. Open the notification bar with two fingers (to see all icons).
2. Find the Multiconference button, if it's not there, click Edit and add it to the active icons.
3. Open the first app, then pull the notification bar down and tap the "Multioconscious" icon.
4. Select the second app from the recent list.

🔹 Features of the method:

• 🔄 It only works with free form applications (e.g. Chrome, Telegram, Google Maps).
• 🎮 Games and some messengers (such as WhatsApp) can block separation.
• 📱 A dividing strip will appear on the screen - it can be dragged to change the proportions (maximum). 70/30).

Swipe up gesture|The button in the notification panel|Party of annex|I don't use multi-windows.-->

Method 3: Part of the split-screen application

If the built-in MIUI features don't work, you can use third-party utilities.The best options for the Redmi Note 9 Pro are:

⚠️ Note: Applications like Multi Window may conflict with MIUI, It causes lags or reboots before installation:

• 🛡️ Make a backup of the data (Settings) → The phone. → Backup).
• 🔧 Disable battery optimization for utility (Settings) → Annexes → Application management → [name] → Battery → No restrictions).
• 📵 Restart the phone after installation.

Solving split screen issues on Redmi Note 9 Pro

If the screen is not dividing or one of the apps is closing, check these points:

1. Black screen in the partition

Reason: conflict with the Smooth Display (90Hz) feature. Turn it off in Settings → Display → Screen refresh rate and select 60Hz. After splitting, you can return 90Hz.

2. The "Separate Screen" button is not on the menu

This means that:

• 🔹 You have an old firmware (below). MIUI 12.0.2.0.Update via Settings → The phone. → Updating the system.
• 🔹 The function is disabled by regional settings. Try changing region to India (Settings) → Additionally. → Region) and restart the phone.
• 🔹 The application does not support multi-window (for example, TikTok or PUBG Mobile).

3.Applications are closed spontaneously

The problem is battery optimization.

1. Go to Settings → Applications → Application Management.
2. Select the problem application → “Battery” → “No restrictions”.
3. Activate "Second Start" and "Secondary Start" in the same menu.

💡

If the split screen is unstable, try turning off window animation in Settings. → The phone. → Version. MIUI (Tap 5 times on "Version" MIUI", Then select "Window animation: 0.5x").

How to Change the Split Screen Proportions

By default, MIUI splits the screen in a 50/50 ratio, but it can be changed:

Steps:

1. Activate the split screen (by any of the methods described).
2. In the center of the screen will appear a gray separator with a dot.
3. Drag the divider left/right, holding the point.
4. Permissible proportions: from 30/70 to 70/30.

🔹 Limitations:

• 📏 You can’t make a window less than 30% of the screen width.
• 🎵 In some applications (for example, Spotify) the proportions are fixed.
• 🔄 After changing the proportions, it may be necessary to restart applications.

💡

If the dividing strip is gone, swipe from the top or bottom of the screen to the center. It will appear again.

Multiconference in games and heavy applications

On the Redmi Note 9 Pro, split screen is not supported in:

• 🎮 Games: Genshin Impact, Call of Duty Mobile, Free Fire).
• 📺 Annexes with DRM-Protection (Netflix, Disney)+, Amazon Prime Video).
• 📊 Some banking applications (Sberbank Online, Tinkoff).

🔧 Bypasses:

1. For games: Use Picture-in-Picture (PiP) mode. For example, YouTube Premium allows you to roll up a video into a small window and play in parallel.
2. For banking applications: Open them in secret mode (Settings → Applications → Dual applications).
3. For streaming services: use the browser version (e.g. Netflix in Chrome).

⚠️ Warning: Attempting to force screen splitting in games ADB Or root may lead to a ban of the account (in the PUBG Mobile, Free Fire and others.).

FAQ: Frequent questions about split screen on Redmi Note 9 Pro