Xiaomi and Redmi smartphone owners often face a situation where the internal memory is filled with obscure files, especially messengers, which eventually grow to giant sizes. Android, in particular the shell MIUI or HyperOS, classifies these objects as “data files” of the application. To the user, this sounds mysterious and frightening: what if you delete the extra?
In this article, we will take a closer look at the structure of the popular messenger’s storage, how databases differ from media files, why important components are not easily erased, and how to safely free up gigabytes of space. Understanding the logic of the Android file system will help you manage your device’s resources effectively without the risk of losing important contacts or correspondence history.
Before we get to the point, we need to understand the terminology, and what you see in the storage settings is not a single file, but an ecosystem of records, cache and logs. Blind deletion can cause an application to stop running or lose some of its message history, so it's important to act consciously.
WhatsApp Storage Structure on Android
Messenger uses several types of files for its work. The bulk of the media is usually media files: photos, videos and voice messages. However, system "data files" are something else. They include databases with text messages, contacts, account settings and service logs, these data are stored in a secure part of the file system, access to which is limited by Android security rights.
The second important component is cache, which is temporary files that speed up the application by downloading commonly used avatars or previews of images. Over time, the cache can swell to inadequate sizes, taking up hundreds of megabytes. Unlike basic data, the cache can be cleaned with little or no consequences, although the application may work a little slower after cleaning, recovering temporary files.
Where are the files physically stored?
It’s important to understand the difference between “app data” and “multimedia files.” When you see in the storage settings that “Data” takes 2GB and “Multimedia” takes 5GB, it means that the correspondence database weighs 2GB and your photos and videos are 5GB. Deleting the application data is equivalent to reinstalling with loss of history if there is no backup.
Content Analysis: What to touch and what not to touch
The biggest question Xiaomi users are concerned about is: what can be removed from it? The answer depends on which component you plan to touch. Below is a classification of items by the risk of removing or cleaning them.
The safest way to do this is to work with folders of media files that are duplicated in the gallery, but you can't touch the database system files through the file manager, they're protected, and you have to clean up the system or the application itself.
- 📁 Media folder: it stores all the files you receive and send, you can delete old videos and unwanted pictures, but it is better to do it through the built-in memory management tool.
- 💾 Database files (msgstore.db): This is the history of your correspondence. Deletion will result in the loss of all text messages. Without a backup, it will be impossible to restore them.
- 🗑️ Application cache: temporary files that can and should be cleaned periodically to speed up the system and free up space.
- 📄 Logs and error reports: technical files that are only useful to developers when they crash, which are not needed by the average user, and are safe to delete.
⚠️ Warning: Never manually delete files with the.db or.crypt extension through third-party file managers unless you are sure of the specific folder's purpose.This can damage the user profile and inability to launch the messenger.
Also worth mentioning are local backup files, which can be very important, especially if you have a long history of correspondence, and if you're sure that the last copy on Google Drive is relevant, you can delete the old local archives.
Instructions: Safe cleaning through Xiaomi settings
The MIUI shell and the new HyperOS provide convenient memory management tools that are safer than manual file deletion.Using system features ensures you don't delete the critical system records needed to log in.
To start, go to your smartphone settings. Find the Apps section and select All Apps. Search WhatsApp in the list. Here you will see the Clear button. It is important not to confuse Clear Cache and Clear All Data.
☑️ Checking before cleaning
If you want to make room but save correspondence, just clear the cache. If you want to reset the app to a post-install state, then you use a full data cleanup.
A more subtle setup is available inside the messenger itself. Go to the chat settings menu, then select Storage, where the system itself analyzes the space and suggests you delete large files or clear the cache.
Manual deletion of files through a conductor
For advanced users who want to manually browse through files, there is a built-in File Manager (or File Manager) available. On modern Android versions, the path to files has changed. They are now at: Internal Drive → Android → media → com.whatsapp → WhatsApp.
Inside this folder, you're interested in the Media section, and this is where the WhatsApp Images, WhatsApp Video and others are located, and you can delete the contents of the Sent folder if you don't want to keep copies of what's gone, and you should also check the Private folder where the hidden media files go.
| folder | Description of the contents | Can I remove it? |
|---|---|---|
| WhatsApp Images | All photos received and sent | Yeah (selectively) |
| WhatsApp Video | Videos from chat rooms | Yeah (takes up the most space) |
| Databases | Local backup copies of correspondence | Yeah (leave 1 fresh) |
| Profile Photos | Cashed contact avatars | Yeah (restore themselves) |
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Use the “Sort by Size” feature in Xiaomi Explorer to instantly find the heaviest video files that are often forgotten in older chat rooms.
Remember that after manually deleting files in the Explorer, the application itself may remain "dead" previews. To make the messenger understand that the file is deleted, it is better to delete it through the chat interface or the Storage tool inside the WhatsApp settings.
Cleaning automation and backup management
To prevent the problem of overcrowded memory from returning too often, you should set up automatic data management. WhatsApp allows you to set up auto-delete messages, but this only applies to text and media in specific dialogues. For global cleaning, it is better to use Xiaomi’s built-in tools.
The Security app on Xiaomi smartphones has a Cleanup tool that automatically finds garbage in apps, but it can be too aggressive to remove useful caches, or set up a cleanup schedule manually, or use Deep Cleanup, after checking what is being removed.
Special attention should be paid to backups, which can take up to several gigabytes in the memory of the phone if you do not configure sync with the cloud. Regularly check your backup settings in the section “Chats” → “Chat backup”.
If you use Google Drive, make sure that the local copy on your phone is not duplicated unnecessarily. On Android, a local copy is created daily at 2:00 a.m. Old copy files (with dates in the title) can be deleted, leaving only the latest version.
Problems after cleaning and their solution
Sometimes, after trying to free up space, users encounter an application that is not working correctly. Messenger can freeze when running, do not download media or require re-registration, most often due to damage to configuration files or databases when manual intervention.
If contacts are lost after cleaning, don't panic. Often they are not deleted, but simply hidden due to desynchronization. Check the settings for the contact display in the app itself and make sure that the correct account is selected for sync.
⚠️ Warning: If the app stopped opening after deleting files, don't rush to delete it completely.Try clearing the cache first through Android settings.Full deletion of the account will result in data loss if the backup wasn't made in advance.
In case of serious failures, when the application crashes immediately upon launch, only a complete reinstallation will help. Before that, it is critical to make sure that the last backup is successfully uploaded to the cloud.
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Regular memory prevention prolongs the life of Xiaomi smartphone, as a crowded drive slows down the entire system, not just one application.