How to Reset theme on Xiaomi Redmi Note 9: All Ways (including Recovery and ADB)

Why the Redmi Note 9 Theme May Not Work Right

Xiaomi Redmi Note 9 smartphones running MIUI They allow you to customize the interface deeply with themes, but sometimes users face problems: the theme does not apply completely, elements appear to be curved or the system begins to slow down. MIUI.

Failures most often occur after:

  • πŸ”„ Updates MIUI β€” New firmware versions can break compatibility with old themes.
  • πŸ“₯ Install themes from third-party sources (not from the official store) MIUI Themes).
  • πŸ—‘οΈ Cache cleansing through third-party optimizers (such as Clean Master or CCleaner).
  • πŸ”§ Manual editing of system files (for example, through MT Manager or Root Explorer).

If the theme is unstable, you can reset it to a standard one, and most of the time, software resetting through settings helps, but sometimes more radical measures are required, including flashing it through Fastboot.

πŸ“Š How often do you change topics on Xiaomi?
Every week.
Once a month
Only when it fails.
Never change.

Method 1: Reset theme through MIUI settings

The easiest and safest method is to return a standard theme through the settings menu, which works if:

  • πŸ“± The smartphone is turned on and reacts to touch.
  • πŸ”“ No lock with a pattern lock (or you remember it).
  • πŸ› οΈ The system didn't hang on the logo. MI.

Instructions:

  1. Open Settings β†’ Theme (or Themes depending on the version of MIUI).
  2. Tape on the current active topic (it is highlighted in blue).
  3. At the bottom of the screen, select Standard or Default.
  4. Confirm the application and restart the device.

Check the battery power (minimum 30%)

Close all background applications

Connect to Wi-Fi (if the theme is downloaded from the cloud)

Backup of important data-->

If the topic has not changed after the reset, try:

  • πŸ”„ Clear the app cache Themes in Settings β†’ Annexes β†’ Application management β†’ Topics β†’ Warehouse β†’ Clear the cache.
  • πŸ“₯ Reinstall theme: delete it in My themes section, then download it again.

⚠️ Note: If after resetting the theme, the application icons are missing - this is not a failure, but a feature MIUI. The icons will return after rebooting or manually selecting the icon package in the launcher settings.

Method 2: Reset via MIUI Themes app (if the theme is not apply)

Sometimes a theme is installed but not applied β€” elements of an old theme remain or the system gives an error β€” you can use the theme, and in this case, a forced reset through the MIUI Themes application itself will help.

Action:

  1. Open the Themes app (brush icon on your desktop).
  2. Go to Profile β†’ Settings (cog in the upper right corner).
  3. Select Reset Theme Settings or Restore a Standard Theme.
  4. Confirm the action and wait for the process to be completed.

If the item Resets the settings there are no:

  • πŸ” Check the version of the application MIUI Themes in Settings β†’ For Redmi Note 9, the current version is 1.4.3.8 or later.
  • πŸ“² Update it via Google Play or MIUI App Store.

πŸ’‘

If you have artifacts left after resetting the theme (for example, black squares instead of icons), try changing the scale of the display in Settings β†’ Screen β†’ Text size to standard, then return the previous value.

Method 3: Hard reset via Recovery (if the phone doesn't respond)

If the smartphone hangs on the MI logo, does not respond to touches or cyclically reboots due to a faulty theme, resetting through Recovery mode will help. This method deletes all user data, so use it only as a last resort.

Step-by-step:

  1. Turn off the Redmi Note 9 with a long press of the power button.
  2. Press Volume Up + Power Button at the same time and hold for 10-15 seconds until the Mi Recovery logo appears.
  3. In the Recovery menu, select the language (usually English or ).
  4. Go to Wipe Data β†’ Wipe All Data (use volume buttons for navigation, power button for confirmation).
  5. Confirm the action by entering the yes code (if required).
  6. Once you have finished, select Reboot β†’ Reboot to System.
Action.The resultImplementation time
Cache reset (Wipe Cache)Deletes temporary files, topics will be saved1-2 minutes
Data reset (Wipe All Data)Deletes all user data, including topics5-10 minutes
Fastboot flashing through FastbootComplete restoration of the system to factory condition15-30 minutes

⚠️ Note: Redmi Note 9 with blocked bootloader reset via Recovery will not be deleted MIUI If the phone was linked to the Xiaomi account, after the reset, you will need to enter the username and password!

Method 4: Reset theme through ADB (for advanced users)

If standard methods don’t help and access to Recovery is limited (for example, due to a blocked bootloader), you can reset the theme via Android Debug Bridge (ADB), which requires a computer and enabled debugging over USB.

What you need:

  • πŸ–₯️ A computer with installed Xiaomi drivers and ADB.
  • πŸ”Œ USB-cable (preferably original).
  • πŸ“± Included debugging by USB (Settings β†’ The phone. β†’ Version. MIUI β€” Tap 7 times, then go back to Settings β†’ Additionally. β†’ For developers β†’ Debugging by USB).

Discharge commands:

adb shell pm clear com.android.themes


adb shell pm clear com.miui.home




adb shell pm clear com.miui.themes




adb reboot

If the theme does not reset after executing commands, try to delete the files manually:

adb shell


su




rm -rf /data/system/theme/*




rm -rf /data/data/com.android.themes/*




reboot

What if the ADB can’t see the device?
1. Check if debugging is included on USB 2. Install Xiaomi drivers from the official website (Support section). 3. Try another one. USB-4. in the command line, execute: adb kill-server adb start-server 5. If you are using Windows, disable the driver signature (via gpedit.msc).

How to recover deleted themes after resetting?

After a hard reset, all downloaded themes will disappear, and you can restore them in several ways:

1. Through the MIUI cloud:

  • πŸ“ Open Topics β†’ Profile β†’ My subjects. β†’ Cloud.
  • πŸ”™ Find Remote Themes and Restore the Remote Themes.

From a backup:

  • πŸ“± If a backup was created before the reset via Settings β†’ Additionally. β†’ Backup, restore it.
  • πŸ’Ύ Themes are stored in a folder. /MIUI/theme/.data β€” If you have a backup of this directory, return the files back.

Reloading:

  • πŸ” Find a topic in MIUI Themes Store by name or author.
  • πŸ“₯ Download again (free themes are restored automatically, paid ones may require repayment).

πŸ’‘

If a theme has been purchased, it can be restored for free through Profile β†’ My purchases in the Themes app. The binding goes to your Xiaomi account, not your device.

Frequent mistakes and their solutions

When you reset themes on the Redmi Note 9, users face typical problems.

1. β€œFailed to apply theme” error:

  • πŸ”§ Solution: Clear cache and app data Themes in Settings, then restart your phone.
  • πŸ“‘ If an error appears when downloading, check your Internet connection or switch to mobile data.

2.The wallpaper and sounds were lost after the dumping:

  • 🎨 Solution: Wallpaper and sounds are subject-bound. Return them manually through Settings. β†’ Wallpaper and Settings β†’ Sounds.

3.The phone freezes after applying the topic:

  • πŸ”„ Solution: Load to Safe Mode (hold the power button) β†’ long-tail β†’ Safe Mode, then delete the topic.

4. Recovery reset does not work:

  • πŸ”“ Solution: If the reset is interrupted with a Data wipe failed error, unlock the bootloader via Mi Unlock Tool (requires a Xiaomi account and waits 7-15 days).
Can I reset the topic without losing data?
Yes, if the phone turns on and reacts to touch. Use Method 1 (via settings) or Method 2 (via MIUI Themes) These methods don't affect user files, photos or apps. If the phone is stuck on the boot, you have to do Wipe Data through Recovery, which will delete all data from internal memory.
Why are there old icons after resetting the theme?
This is because of launcher caching. To fix: Open Settings β†’ Apps β†’ Application Management. Find MIUI Launcher (or Lawnchair if you use a third-party launcher). Slip Storage β†’ Clear cache. Reboot phone.
How to delete a topic if it does not appear in the installed list?
Hidden or corrupted themes can be removed via ADB or root file manager: Connect your phone to your PC and do: adb shell pm uninstall -k --user 0 com.miui.theme.{name theme} (you can find out the exact name through adb shell pm lists | grep theme). or manually delete the the theme folder along the path /data/system/theme/(root required).
Will this work on the Redmi Note 9 Pro or Note 9S?
Yes, the instruction is suitable for all devices of the line Redmi Note 9: Redmi Note 9 (merlin) Redmi Note 9 Pro (joyeuse) Redmi Note 9S (Curtana) The only differences are in the model names in Fastboot when you run firmware. ADB universal.
Can I return the MIUI theme to the factory after installing custom firmware?
Custom firmware (such as LineageOS or Pixel Experience) standard themes MIUI They don't work, they're tied to the original shell, and to get them back, you have to go back to the official shell. MIUI Instructions for returning to stock firmware: Download the official Fastboot-ROM for Redmi Note 9 site MIUI Download, unpack the archive and launch it. flash_all.bat (Windows or flash_all.sh (Linux/Mac). Wait for the process to be completed (the phone will reboot automatically).