How to change the wallpaper on the lock screen Xiaomi Redmi Note 7: 5 ways + error solving

Why the standard wallpaper on the Redmi Note 7 tired and how to replace them

The lock screen of the Xiaomi Redmi Note 7 is the first thing you see when you turn on your smartphone. Standard wallpaper from MIUI quickly swells, especially if you use the phone for several years. Fortunately, the system offers several ways to personalize, from built-in tools to third-party applications. But not everyone knows that Redmi Note 7 has hidden features for customizing the background lock that do not require root rights.

In this article, we’ll look at 5 proven ways to change wallpaper, including a little-known Theme of the Day trick that automatically updates the background every day, and why new wallpapers are sometimes not used (spoiler: energy saving mode is to blame), and how to fix the black screen after changing the background. If you want to make your Redmi Note 7 unique, read on.

Before you start, make sure your device has an up-to-date version of MIUI (at least MIUI 10). Check this in Settings β†’ About Phone β†’ MIUI Version. If the version is outdated, some methods may not work.

πŸ“Š How often do you change your smartphone wallpaper?
Once a week.
Once a month
Only when you buy a phone
Never changed.

Method 1: Standard Replacement with β€œTheme Settings”

The easiest method is to use the built-in Theme feature, which is suitable for beginners and does not require additional applications to be installed.

  1. Open the Themes app (the icon with a brush on your desktop).
  2. Go to the Wallpaper section in the lower menu.
  3. Select the category of the Lock screen.
  4. Scroll through the list and tap on the image you like.
  5. Click Apply and confirm the selection for the lock screen.

If the desired background is not in the collection, you can download additional wallpaper:

  • πŸŒ„ Landscapes – a section with natural motifs (mountains, seas, sunsets).
  • 🎨 Abstraction – geometric patterns and gradients.
  • πŸ–ΌοΈ Minimalism – simple monotonous backgrounds with an emphasis on the hour or notifications.
  • πŸ“± Dynamic wallpaper - animated backgrounds (requires) MIUI 12+).

Please note that some of the wallpapers in the Premium section require payment. To avoid accidental purchases, turn off the option to Show Paid Content in the Themes app settings.

Check out the MIUI version (not lower than 10)

Battery charge > 20%

Turn off the power saving mode

Make a backup copy of the current wallpaper (optional)-->

Method 2: Using third-party applications (without root)

If you don't like the built-in wallpaper, you can install third-party apps from Google Play.The best options for Redmi Note 7 are:

AnnexFeaturesCons
WallpapersCraftMore 100 000 HD-wallpaper, permission filter 1080Γ—2340 (native to the Redmi Note 7).The commercial is free.
ZedgeWallpaper + notification sounds, weekly collection updates.It requires registration for download.
BackdropsMinimalist wallpaper with support for a dark theme.Limited free content.
MuzeiAutomatic change of wallpaper from gallery or online sources.Not all backgrounds are optimized for the lock screen.

To install wallpaper from a third-party application:

  1. Download and install the selected application.
  2. Find your favorite image and save it to the gallery.
  3. Open the Gallery app, select the saved image.
  4. Slip on three dots in the upper right corner and select Set as β†’ Lock screen wallpaper.

⚠️ Note: Some applications (such as Muzei) may conflict with system wallpaper MIUI. If the background has not changed after installation, restart the phone or manually apply wallpaper through Settings. β†’ Lock screen.

Method 3: Secret Theme of the Day (automatic shift)

Xiaomi hides a useful option that automatically updates the lock screen wallpaper every day, called the Theme of the Day, and works without installing additional apps.

  1. Open the Settings β†’ Lock screen.
  2. Scroll down and find the topic of the day (may be called Dynamic Wallpaper in newer versions of MIUI).
  3. Turn on the switch and select the source: 🌍 Bing Landscapes – Daily Photos from Microsoft. 🎨 Art - paintings by famous artists. πŸ“… Calendar - wallpaper with date and time.

Set up the refresh rate (daily/weekly).

Important: Theme of the Day uses up to 5% of your battery power per day due to background image loading, and turn it off if you notice an accelerated discharge.

How to turn off advertising in the β€œThemes of the day”?
To remove banner ads in the dynamic wallpaper section, go to Settings β†’ Memory β†’ Cleanup β†’ Ads and turn off the option of Personalized Ads. This will not remove the ads completely, but reduce the amount of them.

Method 4: Manually Adding Wallpaper Through File Manager

If you want to use your own image (such as a vacation photo or your favorite team logo) but it doesn’t show up in the gallery as an option for wallpaper, follow these steps:

  1. Put your image in the DCIM β†’ Wallpapers folder on your phone’s internal memory. If you don’t have the folder, create it.
  2. Make sure the background resolution matches the Redmi Note 7 (1080Γ—2340) screen for full-screen display.
  3. Open the Settings β†’ Lock screen β†’ Wallpaper.
  4. In the My Wallpaper section, your image should appear. Choose it and apply it.

⚠️ Note: When using live wallpaper (.gif or.mp4) They may not appear on the lock screen due to limitations. MIUI. For animation, you will need third-party software, such as Video Live Wallpaper.

Method 5: Reset the lock screen settings (if nothing works)

Sometimes, after updating MIUI or crashing the system, the wallpaper of the lock screen stops changing, or a black background is displayed, in which case resetting the settings will help:

  1. Go to Settings β†’ Applications β†’ Application Management.
  2. Find System Settings (or Launcher) and tap on it.
  3. Select Warehouse. β†’ Clear the data.
  4. Confirm the action and restart the phone.

After the reboot:

  • πŸ”„ The lock screen wallpaper will reset to standard.
  • πŸ“± You may need to reconfigure the display of notifications and widgets.
  • βš™οΈ If the problem persists, check if Safe Mode is turned off (hold the power button for 5 seconds).

πŸ’‘

If the wallpaper still doesn’t change after reset, try temporarily disabling Data Protection in Settings β†’ Privacy. Sometimes this feature blocks changes to system files.

Solving common problems when changing wallpaper

Even after installing the wallpaper correctly, Redmi Note 7 users face problems.

Problem.Reason.Decision
Wallpaper not applicableThe energy saving mode blocks the background processes.Turn off energy saving in the notification curtain.
Black screen after shiftConflict with the subject of design.Reset the theme to standard in Settings β†’ Themes.
Wallpaper is cut offDisplay resolution inconsistency.Use images with a resolution of 1080Γ—2340.
Animation doesn't workThe dynamic effects option is disabled.Include in Settings β†’ Additional β†’ System animation.

If none of these methods worked, check the integrity of the system files:

  1. Go to Settings. β†’ The phone.
  2. Tap 7 times on the MIUI version to activate the developer mode.
  3. Back to Settings β†’ Additionally. β†’ For developers.
  4. Find the system file checker option and run it.

πŸ’‘

If the wallpaper problem has occurred after the MIUI update, try rolling back to the previous version via Settings β†’ System Update β†’ Update Updates Pause.

FAQ: Answers to Frequent Questions

Can I put a video on the lock screen without root?
Yes, but with limitations. Use the Video Live Wallpaper app from Google Play. It allows you to convert videos to live wallpaper, but the animation will only work once the screen is unlocked (due to MIUI limitations on background processes).
Why are the wallpapers reset after rebooting?
This is a well-known bug in MIUI 11-12 for Redmi Note 7. Solution: Set wallpaper via Settings β†’ Lock screen, not from the gallery. Disable battery optimization for the Theme app. If the problem persists, upgrade to MIUI 13+.
How to change the wallpaper automatically by the time of day?
Use the Tasker app + Kustom Live Wallpaper plugin. Set up the task: Profile: Time = 08:00 Action: Set wallpaper (morning background) Profile: Time = 20:00 Action: Set wallpaper (night background) This will require initial skills to work with Tasker, but gives full control over automation.
Can I get my standard MIUI back after a shift?
Yes. Go to Settings β†’ Themes β†’ Wallpaper β†’ Standard and select MIUI Default. If this item is missing, reset the theme settings through Settings β†’ Themes β†’ Three Dots β†’ Reset.
Why is the wallpaper on the lock screen blurry?
The system automatically applies blur to wallpaper for better readability of time and notifications. To remove the effect: Use contrast wallpaper with dark or light tones. Turn off background blur in Settings β†’ Lock screen β†’ Additional (not available in all versions of MIUI).