How to install the picture on the lock screen Xiaomi Redmi Note 9: 5 proven ways

The lock screen of the Xiaomi Redmi Note 9 is the first thing you see when you turn on a smartphone, so its design plays a key role in the user experience. Many owners want to personalize the device by setting their favorite photo, art or motivational picture instead of the standard MIUI wallpaper. However, not everyone knows that in the Redmi Note 9 there are several ways to change the background of the lock — from built-in tools to third-party solutions with advanced capabilities.

In this article, we will discuss all the current methods, from basic settings through Themes to the use of hidden MIUI functions and applications from Google Play. Particular attention will be paid to the nuances that arise when working with screen resolutions of 2340×1080 pixels - this is the aspect ratio of the Redmi Note 9, and not all wallpapers correctly scale to it.

1. Method: through standard MIUI settings

The easiest and safest method is to use the built-in MIUI shell tools, which do not require any additional software installation and is suitable even for beginners.

1. Open the Themes app (the icon with a brush on your desktop).
2. Go to the Wallpaper section → Lock screen.
3. Select a category: 📸 My photos - upload the image from the gallery. 🌄 Landscapes – standard wallpaper from Xiaomi. 🎨 Abstractions – dynamic and static arts. 🔍 Search – Find Wallpaper by Keyword.

Apply

Lock screen only.

If you choose your own photo, the system will suggest cropping it to the screen resolution. It is important to note that the Redmi Note 9 has a cutout for the front camera ("drop"), so the key elements of the image should not fall into this zone. For accurate fit, use the function Scale (two fingers on the screen).

Cut the image so that important details do not fall under the camera cutout |

Make sure the photo resolution is at least 1920×1080 for clarity |

Disable the option "Blurring background" (if you need to save details)|

Check if the colors are distorted when used (sometimes MIUI automatically adjusts the shades)

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⚠️ Note: If artifacts (blurring, pixelation) appear on the lock screen after the wallpaper is applied, then the original image was of low resolution. PNG or JPEG permittably 2K.

2. Method: through the appendix "Gallery"

MIUI allows you to set the wallpaper to the lock screen directly from the standard Gallery, which is convenient if you want to use a photo that you just took or downloaded.

1. Open the Gallery app and find the image you want.
2. Slip on it, then tap on the three dots in the lower right corner (menu).
3. Select Set as → Lock screen wallpaper.
4. Adjust the framing area (if necessary) and confirm the choice.

The advantage of this method is speed. However, there is a limitation: MIUI automatically applies light blur to the background if there are small details (for example, text), To avoid this, pre-process the image in any graphics editor (for example, Snapseed or Lightroom), increasing the contrast.

Through "Themes" | Through "Gallery" |Third-party apps | Never change |Another option-->

3. Method: using MIUI Launcher (hidden function)

Few people know, but MIUI Launcher (a standard launcher of Xiaomi) has a hidden option for more flexible wallpaper settings, which allows you to apply different images for the desktop and lock screen, and also disable automatic blur. Here's how to activate it:

1. Press the free space on the desktop (home screen).
2. In the menu that appears, select Wallpaper Settings.
3. Go to the Lock screen tab.
4. Slap the icon. + In the lower right corner and select the source: 📁 Local files – photo from the phone memory. ☁️ Cloud – Images from Mi Cloud or Google Photos. 🔍 Search wallpaper - a selection from Xiaomi.

Blurring background

This method gives you more control over the end result, for example, you can turn off automatic color adjustment, which sometimes spoils the shades on the wallpaper, and MIUI Launcher also offers Dynamic Wallpaper - animated background images that respond to gestures or the time of day.

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If you want your wallpaper to change automatically, install the Muzei Live Wallpaper app from Google Play, which supports MIUI integration and allows you to adjust the rotation of images on a schedule.

Method: Third-party applications for customization

If the built-in tools MIUI Not enough, you can use third-party software, and they offer advanced features: animation, widgets on the lock screen, support. GIF And even interactive elements.-3 tested applications:

• 🎬 KLWP Live Wallpaper Maker – allows you to create fully customizable wallpaper with animation, text and graphics. Supports integration with Tasker for automation.
• 🖼️ WallpapersCraft – a huge base of wallpapers in high resolution with the possibility of previewing on the model of your smartphone.
• 🔄 Tapet – generates unique wallpaper based on algorithms, automatically adjusting to the resolution of Redmi Note 9.

Before installing any of these applications, check the permissions it requests. For example, KLWP requires access to Overlay over other applications and Notifications – this is necessary for widgets to work. If you are confused by any permissions, refuse to install or review other users’ feedback.

⚠️ Note: Some applications for customizing the lock screen may conflict with MIUI Optimization is Xiaomi’s performance-enhancing system process. If after installing wallpaper, the smartphone starts to brake or discharge quickly, check the battery settings: the system may have limited the background activity of the application.

5. Method: Manual replacement through file system (for advanced)

This is a method that works for people who are ready to work with system files and have root access or an unlocked bootloader, and it allows you to manually replace standard MIUI wallpaper with your own, including animations.

Step-by-step:

1. Download the archive with wallpaper in.mtz format (themes for MIUI) or prepare your image in a resolution of 2340×1080.
2. Connect the Redmi Note 9 to your computer in File Transfer (MTP) mode.
3. Copy the wallpaper file to /sdcard/MIUI/theme/ If theme is not available, create it manually.
4. Go to Settings → About phone and tap the MIUI version 7 times to activate the developer mode.
5. Return to Settings → Additional → For developers and enable USB debugging.
6. Use it. ADB-The following is adb shell am start. -n com.android.themes/.activity.ThemePreviewActivity

After the device is rebooted, new wallpaper will appear in the Topics → Mine section, which requires technical skills but gives you complete control over the look of the lock screen, including unlock animations and interactive elements.

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Manual wallpaper replacement through system files is the only way to install GIF or APNG-animation on the lock screen without third-party launchers, but this violates the integrity of the MIUI It can cause problems when updating the system.

Frequent problems and their solutions

When changing the wallpaper on the Redmi Note 9 lock screen, users often encounter typical errors.

• 🔍 Picture cropped or stretched: The problem arises from resolution mismatch.Solution: crop the image to 2340×1080 In any graphics editor (e.g. Photoshop Express), keeping important elements in the center!
• 🎨 The colors have become dull: MIUI Automatically adjusts wallpaper saturation. To avoid this, disable the option of Autocorrect colors in the wallpaper settings or use images in format PNG high-colored.
• 🔄 Wallpaper resets after update: This happens due to the resetting of the themes cache.Solution: before update MIUI Save your favorite picture in the folder DCIM/Wallpapers and reuse it after rebooting.
• 🚫 You can not install live wallpaper: Standard launcher MIUI does not support Live Wallpapers on the lock screen. KLWP Wallpaper Engine (root required).

If none of these methods worked, try resetting themes to standard: go to Settings → Themes → Mine → Reset. After that, repeat the wallpaper installation procedure.

FAQ: Answers to popular questions