How to replace the picture on the Android phone screen: wallpapers, screensavers and system images

Replacing pictures on the Android screen is a task that every user faces. We are talking not only about desktop wallpaper, but also about the lock screen, application screensavers, system icons and even animations. Depending on the version Android (from Android 10 to Android 15) and the manufacturer's shell (MIUI, One UI, ColorOS), the process may differ radically. In some places, a couple of taps are enough, but in others you will need to go deeper into the developer settings or use third-party utilities.

In this article we will look at all the current methods - from standard tools to advanced tricks with ADB and modification of system files. We will pay special attention to the nuances of popular brands: Samsung, Xiaomi, Realme/Oppo, Google Pixel and others. We will also consider how to bypass manufacturers’ restrictions if the system does not allow you to replace the default picture (for example, the operator’s logo on the lock screen).

1. Standard wallpaper replacement through Android settings

The easiest method is to use the built-in tools. It is suitable for 90% of users and does not require rights root or special knowledge. Let's look at the process using the example of pure Android (as on Google Pixel) and customized shells.

On pure Android (versions 12–15) the algorithm is as follows:

1. Touch and hold empty space on desktop.
2. In the bottom menu, select “Wallpaper and style" (or "Styles and wallpaper" on new versions).
3. Go to the "My wallpaper" or "Gallery" section if you want to use your own image.
4. Select a picture, adjust the scale and apply to desktop, lock screen or both at once.

On Samsung with shell One UI the path is a little different:

• 📱 Long press on the desktop → "Wallpaper».
• 🖼️ Select source: "My Wallpaper" (gallery), "Themes" (Samsung store) or "Colors" (gradients).
• 🔄 On the preview screen, you can choose whether to apply the wallpaper only to home screen or also to lock.

⚠️ Attention: On some devices Samsung and Xiaomi when selecting wallpaper from the gallery, the system automatically crops the image to fit the screen. To avoid distortion, use images with a resolution no lower than 1080×2400 (for modern smartphones).

On Xiaomi (MIUI 14–15) and Realme (ColorOS 13–14) an additional section "Super wallpaper" has been added - animated 3D backgrounds that respond to gestures. They can be downloaded from the company theme store, but they consume more battery power.

2. Replacing the lock screen screen saver

The lock screen often has separate settings, especially when it comes to dynamic wallpaper (for example, on Google Pixel) or widget screensavers (on Samsung). Here it is important to understand the difference between a static image and “smart” wallpaper, which is updated depending on the time of day or weather.

To change static picture on the lock screen:

1. Open Settings → Display → Lock screen (on some devices the path may be Settings → Wallpaper and style → Lock screen).
2. Select source: gallery, standard wallpaper or downloads.
3. Adjust the scale and confirm the changes.

For dynamic wallpaper (for example, on Pixel):

• 🌄 Go to Settings → Display → Styles and wallpapers → Dynamic colors.
• 🎨 Select a theme from the suggested ones or activate the "Selection from wallpaper" option so that the system generates palette based on your picture.
• ⚡ Turn on the "Daily update" option if you want to automatically change the screensaver.

On Samsung The "Lockscreen Widgets" function is available - mini-panels with weather, music or calendar on top of the wallpaper. To turn them off and return a clean picture:

1. Hold your finger on the lock screen and swipe up (widget settings will open).
2. Tap. "DeleteDisable" for unnecessary elements.

3. Replacing system images (logos, icons, animations)

Here begins the territory for advanced users. We are talking about replacing:

• 📶 Logo. operator on the lock screen or in the status bar.
• 🔋 Charging icons (battery animations).
• 🛒 System application icons (for example, “Phone”, “Messages”)
• 🎵 Notification background (on some firmware).

This will require one of the conditions:

• 🔓 root access (for example, through Magisk).
• 🖥️ ADB access (without root, but with restrictions).
• 📱 Custom firmware (for example, LineageOS).

Let's consider replacing operator logo using the example of Samsung:

1. Install Magisk and module Samsung Carrier Label Changer from the repository.
2. Restart your phone and open the module application.
3. Select Slot 1 or Slot 2 (depending on the SIM card) and upload your picture in format PNG with a transparent background.
4. Apply the changes and reboot the device.

To replace via ADB (without root) on a clean one Android:

adb shell settings put global carrier_logo_custom 1
adb push your_logo.png /data/local/carrier_logo.png
adb shell chmod 644 /data/local/carrier_logo.png
adb reboot

⚠️ Attention: Modifying system files can lead to Loss of warranty or soft-brick (cyclic reboot) Before experiments, create a backup using TWRP or standard tools. Android.

Image type	Replacement method	Root required?	Risks
Desktop wallpaper table	Standard settings	❌ None	Absent
Operator logo	ADB or Magisk modules	✅ Yes (partially without root)	Reset network settings
System application icons	Icon Packs or APK modification	✅ Yes	Crash of launcher
Charging animation	Replacing files in /system/media	✅ Yes	Bootloop

4. Using third-party launchers for flexible settings

If standard Android tools limit your capabilities, third-party launchers offer advanced functionality. For example:

• 🎨 Nova Launcher - support icon packs, adaptive icons, gestures.
• 🖼️ Action Launcher - dynamic wallpaper, quick font settings.
• 🌌 Lawnchair - open source code, integration with Google Discover.
• 📱 Microsoft Launcher — synchronize wallpaper with Windows 11.

To change the wallpaper via Nova Launcher:

1. Install the launcher from Google Play and make it standard (Settings → Applications → Default Launcher).
2. Touch and hold the desktop → "Wallpaper».
3. Select source: gallery, WallpapersCraft, Backdrops or other services.
4. Enable the "Scrolling wallpaper" option if you want different pictures on each desktop.

To replace application icons:

• 📦 Download icon pack (for example, Whicons, Delta or Fluxo).
• 🔧 In settings Nova Launcher go to "Appearance → Icon style" and select the downloaded pack.
• 🎯 For individual applications: long press on the icon → "Edit» → «Icon».

Download APK from the official website (not from third-party sources)|

Create a backup copy of your current desktop settings|

Disable battery optimization for the launcher in Android settings|

Check compatibility with your version of Android-->

5. Replacing pictures in system applications (advanced level)

If you want to change, for example, call menu background or picture in the Contacts application, you will need to edit APK files. This method is only suitable for experienced users and requires:

• 💻 Computer with Android Studio or APKTool.
• 🔗 Knowledge of decompilation and reassembly APK.
• 📱 Devices with an unlocked bootloader.

Example of replacing the background in the application com.android.contacts:

1. Download the original APK from your phone via ADB:

   adb pull /system/priv-app/Contacts/Contacts.apk

2. Decompile the APK using APKTool:

   apktool d Contacts.apk -o contacts_project

3. B folder contacts_project/res/drawable find the background image (usually bg_contact_detail.xml or a PNG file).
4. Replace the file with yours (with the same name and resolution!).
5. Rebuild the APK:

   apktool b contacts_project -o Contacts_mod.apk

6. Sign the modified APK (for example, via uber-apk-signer) and install on your phone:

   adb install Contacts_mod.apk

⚠️ Attention: Replacing system APKs can lead to application malfunction or synchronization errors (for example, with Google Contacts). backup!

An alternative way for Xiaomi is to use themes MIUI:

• 🎨 Download the theme from the official store (Themes → Online).
• 🔍 Some themes change not only icons, but also backgrounds of system applications (calls, messages).
• 🛠️ For deep customization use MT Manager (requires root) to edit theme files in /data/system/theme/.

What to do if after replacing the APK the application crashes?

Most likely, the issue is with the signature or incompatible resources. Try these steps:

1. Check the logcat for errors: adb logcat | grep -i "your_package".

2. Revert to the original APK via ADB: adb install -r Contacts_original.apk.

3. If you modified system files, restore the backup from TWRP or flash the stock ROM.

6. Automation of wallpaper replacement (by time, location, event)

If you are tired of manually changing pictures, you can configure automatic rotation based on:

• ⏰ Time of day (morning/day/night).
• 🌍 Locations (home/work).
• 📅 Calendar events (holidays, birthdays).
• 🔋 Battery charge level.

Applications are suitable for this:

• 🔄 Wallpaper Changer —scheduled rotation from a given folder.
• 🌅 Muzei Live Wallpaper —automatic wallpaper from sources (for example, Unsplash, NASA).
• 📡 Tasker + plugin Kustom Wallpaper — complex scenarios with triggers.
• 🎨 Tapet —generation of unique wallpapers using an algorithm.

Example of settings in Tasker:

1. Create a profile with the condition "Time» (for example, 7:00–10:00).
2. Add the task "Plugin → Kustom Wallpaper».
3. Specify the folder with morning wallpaper or URL images.
4. Activate the task and test.

For Muzei:

• 📱 Install the application and select the source (for example, Earth View from Google Maps).
• 🔧 In the settings, configure the update frequency (from 1 hour to 1 day).
• 🎨 Turn on blurring and dimming if the wallpaper is distracting.

7. Troubleshooting problems when replacing pictures.

Sometimes after replacing wallpaper or system images, errors occur. Let's consider typical cases and solutions:

Problem	Possible cause	Solution
Wallpaper resets after reboot	Launcher cache or access rights error	Clear the launcher cache (Settings → Applications → Launcher → Memory → Clear cache)
The picture on the lock does not change	Manufacturer restrictions (for example, MIUI)	Use the ADB command: adb shell settings put global lock_screen_wallpaper_enabled 1
Application icons do not change	Conflict with MIUI/One UI optimization	Disable “Adaptive” icons" in the launcher settings
The system image returned after the update	The firmware overwrote the modified files	Repeat the replacement or use Magisk to protect the files

If after replacement operator logo network signal lost:

1. Check if you have deleted critical files in /system.
2. Restore the original files from the backup.
3. Reboot the phone in safe mode (hold the power button → "Safe Mode").
4. If the problem persists, reset the network settings: Settings → System → Reset → Reset mobile network.

For Samsung with the error "Wallpaper is not supported»:

• 📏 Check the picture resolution (must match the screen resolution, for example, 1080×2400 for Galaxy S23).
• 🖼️ Convert the image to PNG or JPEG with a quality of at least 90%.
• 🔄 Reboot the device and try again.

FAQ: Frequently asked questions

Is it possible to change the wallpaper on the lock screen without unlocking the phone?

No, changing the wallpaper requires unlocking the device. However, on some firmware (for example, MIUI) you can use guest mode with limited settings, but this will not give full control.

Why does the wallpaper in the gallery look normal, but after installation it stretches?

This is due to cropping algorithm your shell Try:

• Use pictures with aspect ratio 9:20 (for modern smartphones).
• Disable the "Automatic cropping" option in the wallpaper settings (if available).
• Install a third-party launcher (for example, Nova Launcher), which supports manual scale adjustment.

How to return the standard wallpaper after experiments?

Methods:

• On clean Android: Settings → Styles and wallpapers → Standard wallpaper.
• On Samsung: Settings → Wallpaper → Samsung standard wallpaper.
• On Xiaomi: reset the theme to standard in Themes → My → Standard.
• If the wallpaper disappeared after a reset: reinstall the launcher or clear its data.

Is it possible to change the charging animation without root?

On most devices - no. However, on some firmware (for example, ColorOS), you can replace the animation through dark mode or special themes. For a complete replacement you will need:

1. Unlock the bootloader.
2. Get root access.
3. Edit files in /system/media (for example, battery_charging.png).

Alternative: use applications like Battery Charge Animation (simulate animation on top of the standard one).

Why did the wallpaper reset after updating Android?

This is standard system behavior when major). updates (for example, from Android 13 to Android 14To avoid loss:

• Save your favorite wallpapers to the cloud (Google Photos, Dropbox).
• Use launchers with backup settings (for example, Nova Launcher → “Backup”).
• Before updating, take a screenshot of the current wallpaper and save it to the gallery.