Floating Windows on Xiaomi Redmi 9C: how to turn on and use multi-windows in MIUI

The floating windows (or multi-windows) feature on Xiaomi smartphones allows you to work with multiple applications simultaneously without switching between them. On the Redmi 9C with the MIUI shell, this feature is available, but not always on by default – it must be activated manually. In this article, we will discuss all the working ways to enable floating windows, the nuances of settings and solving typical problems.

It is important to understand that Redmi 9C is a low-end product, and some features may depend on the MIUI version and regional firmware. For example, the global version may have a different interface than the Chinese version. We tested the instructions on current firmware versions (2023-2026) and took into account all the features of the model.

What are floating windows and why do they need them?

Floating windows (multi-windows or floating windows) are multitasking modes in which applications open in small windows on top of the main interface.

• 📱 Read messages in the messenger while watching videos on YouTube.
• 📝 Make notes in a notebook without closing the browser with important information.
• 🎵 Manage music while you are working on another app.
• 📊 Compare data from two apps (for example, in-store prices and browser reviews).

On the Redmi 9C, this mode is implemented through standard MIUI tools, but with limitations: not all applications support floating windows (for example, some games or banking programs can block this mode).

Does the Redmi 9C support floating windows?

Redmi 9C (codenamed Angelica) officially supports floating windows, but with reservations:

• ✅ Works on MIUI 12–14 (Global and European versions).
• ⚠️ In some regional firmware (e.g. India), the function may be disabled by default.
• ❌ Not maintained in MIUI for Russia (due to restrictions of Google Mobile Services in some builds).
• 🔄 On custom firmware (such as LineageOS), the mode may work differently or not.

To check compatibility, go to Settings → About Phone → MIUI Version. If you have a version below 12.0.3.0, first update the firmware – in older versions, multi-windows work unstable or are not at all.

Method 1: Enable via MIUI settings (official method)

The easiest way to activate floating windows is to use the built-in MIUI settings. Follow the instructions:

1. Open Settings (the gear icon on the main screen).
2. Go to Special Features (or Additional Settings → Special Features in some versions).
3. Find Floating Windows (may be called Application Windows or Multi-Windows).
4. Activate the switch to the position on..
5. In the list below, select the applications for which you want to allow floating mode (system utilities and instant messengers are included by default).

If you don't have Floating Windows on the menu, your firmware doesn't support out-of-the-box, so go to alternative methods.

Update MIUI to the latest version

Check the free space on the device (minimum 1 GB)

Close all background applications

Connect to Wi-Fi (for downloading updates if required)-->

Method 2: Activate via hidden menu (for power users)

If you don't have a floating window in your settings, you can try enabling the feature through a hidden menu of engineering settings, which doesn't work on all firmware, but often helps unlock hidden features.

Instructions:

1. Open the phone app and enter the combination: ##6484###
2. If the code works, the MTK Engineer Mode menu will open (for MediaTek processors that are in the Redmi 9C).
3. Go to MultiWindow settings (or similar in name).
4. Activate the Enable Floating Windows option.
5. Reboot the phone.

⚠️ Warning: Do not change other options in the engineering menu unless you are sure of their purpose. Incorrect settings can lead to malfunctions in the smartphone.

If the code doesn’t work, try an alternative:

• Install the Activity Launcher app from Google Play.
• Open it and find it in the list of com.android.systemui.
• Inside, find an activity called MultiWindowSettings and run it.
• Turn on the floating windows and save the settings.

Method 3: Using gestures to quickly open multi-windows

MIUI has hidden gestures to control floating windows, to activate them:

1. Go to Settings → Additional settings → Gestures and movements.
2. Find the Gestures for Multi-Windows (or Quick Opening of Floating Windows) item.
3. Turn on the option and select a handy gesture (e.g. swipe up from the bottom edge with a delay).

Now, to open the app in a floating window:

• Open recent applications (swipe up with a delay).
• Click on the app icon at the top of the card and select Open in the floating window.
• Or use a given gesture on the app screen.

On the Redmi 9C with 2GB of RAM, floating windows can slow down while opening 3+ apps at the same time. To avoid lags, close unnecessary background processes through Task Manager.

Table: Compatibility of floating window applications on Redmi 9C

Solving floating window problems

If the floating windows are not working or are not working properly, check the following points:

• 🔄 Rebooting the device: Sometimes a simple reboot helps, especially after changing settings.
• 📱 Cache Clearing: Go to Settings → Annexes → Manage applications, find Launcher (or System Interface) and clear the cache.
• 🔧 Resetting: If the problem appears after the update, reset the settings to Settings → System system → Resetting settings → Reset all settings (without deleting data).
• 🛠️ Manual activation through ADB: For advanced users, connect your phone to your PC and follow the command: adb shell settings put global. force_resizeable_activities 1 This will force floating window support for all apps (but can cause bugs).

⚠️ Attention: Teams ADB This may disrupt the stability of the system. Before using them, back up your data through Settings. → Additionally. → Backup and reset.

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If floating windows open but close immediately, check the permissions for the System Interface app (com.miui.home) in the special features settings.

FAQ: Frequent questions about floating windows on Redmi 9C

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Floating windows on Redmi 9C are the most stable on MIUI 13-14 global firmware. If the feature is not available, update the system first, then try alternative methods.