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:
- π Updates MIUI β New firmware versions can break compatibility with old themes.
- π₯ Install themes from third-party sources (not from the official store) MIUI Themes).
- ποΈ Cache cleansing through third-party optimizers (such as Clean Master or CCleaner).
- π§ 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.
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:
- π± The smartphone is turned on and reacts to touch.
- π No lock with a pattern lock (or you remember it).
- π οΈ The system didn't hang on the logo. MI.
Instructions:
- Open Settings β Theme (or Themes depending on the version of MIUI).
- Tape on the current active topic (it is highlighted in blue).
- At the bottom of the screen, select Standard or Default.
- 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:
- π Clear the app cache Themes in Settings β Annexes β Application management β Topics β Warehouse β Clear the cache.
- π₯ Reinstall theme: delete it in My themes section, then download it again.
β οΈ 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:
- Open the Themes app (brush icon on your desktop).
- Go to Profile β Settings (cog in the upper right corner).
- Select Reset Theme Settings or Restore a Standard Theme.
- Confirm the action and wait for the process to be completed.
If the item Resets the settings there are no:
- π 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.
- π² Update it via Google Play or MIUI App Store.
π‘
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:
- Turn off the Redmi Note 9 with a long press of the power button.
- Press Volume Up + Power Button at the same time and hold for 10-15 seconds until the Mi Recovery logo appears.
- In the Recovery menu, select the language (usually English or ).
- Go to Wipe Data β Wipe All Data (use volume buttons for navigation, power button for confirmation).
- Confirm the action by entering the yes code (if required).
- Once you have finished, select Reboot β Reboot to System.
| Action. | The result | Implementation time |
|---|---|---|
| Cache reset (Wipe Cache) | Deletes temporary files, topics will be saved | 1-2 minutes |
| Data reset (Wipe All Data) | Deletes all user data, including topics | 5-10 minutes |
| Fastboot flashing through Fastboot | Complete restoration of the system to factory condition | 15-30 minutes |
β οΈ 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 donβt 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:
- π₯οΈ A computer with installed Xiaomi drivers and ADB.
- π USB-cable (preferably original).
- π± 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 rebootIf 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/*
rebootWhat if the ADB canβt see the device?
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:
- π Open Topics β Profile β My subjects. β Cloud.
- π Find Remote Themes and Restore the Remote Themes.
From a backup:
- π± If a backup was created before the reset via Settings β Additionally. β Backup, restore it.
- πΎ Themes are stored in a folder. /MIUI/theme/.data β If you have a backup of this directory, return the files back.
Reloading:
- π Find a topic in MIUI Themes Store by name or author.
- π₯ Download again (free themes are restored automatically, paid ones may require repayment).
π‘
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. βFailed to apply themeβ error:
- π§ Solution: Clear cache and app data Themes in Settings, then restart your phone.
- π‘ 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:
- π¨ 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:
- π 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:
- π 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).