Modern Xiaomi and Redmi smartphones have a powerful hardware, but over time, even the top models start to work slower. The main reason is overflow of the system partition and the accumulation of temporary files that block the normal operation of the operating system. Users often confuse ordinary memory for photos with the system area where application data and Android logs are stored.
Understanding the structure of the storage system avoids critical cleaning errors. Owners of MIUI or HyperOS devices need to know which folders to touch and which to leave alone to avoid disrupting the stability of the gadget. In this article, we will discuss safe and effective ways to free up space.
Optimization requires care, because deleting system files can lead to a "brick" of the device. We will consider the standard cleaning tools, work with the app cache and hidden features of the developer menu. A competent approach will return the smartphone to factory speed without the need for flashing.
Analysis of occupied space in the MIUI settings
The first step should always be diagnostics. Don't blindly delete files without knowing what's taking up space. Xiaomi's shell has a great analyzer built in that visualizes the distribution of data. Go to Settings → Memory to see a detailed breakdown by category.
It will show how much space apps, images, videos and system files take up, and it often turns out that the lion's share of memory is occupied by messenger cache or long-deleted games, and the analyzer will help identify such "eaters" of space in seconds.
Note the "Other" section, which may contain remnants of deleted programs or downloaded system updates, and if this section is disproportionately inflated, a deeper cleaning through the file manager or computer is required.
⚠️ Note: Do not attempt to delete files from system folders through third-party root file managers unless you are sure of their purpose.
Use the built-in cleanup function, but don't rely on it completely. It only removes obvious debris, leaving heavy user files intact. Deep cleanup requires manual intervention in folder structure.
Cleaning the cache of applications and system services
Cache is temporary data that speeds up programs, but it grows to giant sizes over time, especially social media and browsers. To clear the cache of a particular application, go to Settings → Apps → All apps.
Select the program you want (like YouTube or Chrome) and find Memory, and it will have a "Clear Cache" button, and it's important not to confuse it with a "Clear All" button, which will reset the app to the factory settings and delete your logins.
- 🗑️ Clear the cache of only those applications that you are actively using right now.
- 📱 For instant messengers, it is better to use the built-in cleaning in the settings of the application itself, so as not to lose important correspondence.
- 🔄 Periodically clear the cache of Google Play if the store is not working properly.
There is also a hidden cache that can be removed through the recovery menu, but it is better to use the usual means to clean the user's cache, which is safer and does not require rebooting to a special mode.
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If the app starts to work slower after cleaning the cache, don't worry. When it first starts, it will recreate the necessary temporary files, which will take a little time.
Deletion of residual files and dummy folders
When you delete Android apps, you often have folders with settings and logs that can take hundreds of megabytes to find, use the built-in Explorer or Files app to find them. Look for folders with the names of remote games or programs.
Pay special attention to the Android/data folder, which stores cached data from games and heavy apps, and you can delete the contents of this folder, but remember that progress in games can be reset if it is not stored in the cloud.
| Type of folder | Can I remove it? | Effects of consequences |
|---|---|---|
| Cash games (obb) | Yes, if the game is deleted. | The game will require re-uploading data |
| Social media folders | Careful. | You can lose the stickers saved in the gallery. |
| System logs | Yes. | Safe, clearing the place. |
Also check the Download folder or Downloads. Browsers and instant messengers often save all files there by default. APK-Installers files can be deleted – they are no longer needed after installing programs.
Work with garbage in the gallery and instant messengers
The largest amount of data is usually stored in media files, messengers like Telegram and WhatsApp store every photo and video they see in the memory of the phone, which creates duplicates: the file is in the chat room and in the gallery.
In Telegram settings, go to Data and Memory → Memory Use, where you can clear the cache and set up automatic deletion of old files, which will free up gigabytes of space without deleting correspondence.
- 📸 Check the recently deleted folder in the gallery, and the files are stored for 30 days and take up space.
- 💬 Turn off auto-save media in WhatsApp settings so photos don’t get duplicated in the gallery.
- 🎥 Video files take up the most space – transfer them to your computer or the cloud.
Why didn't the place clear after the cleanup?
Use the "Free Space" feature in the Google Photos app, which offers you to delete photos that are already stored in the cloud, a safe way to clear your local memory by leaving photos online.
Resetting settings as a radical method
If the software cleaning doesn't work and the system memory is overflowing critically, the last option is a complete reset, which will return the phone to factory status.
Go to Settings → About Phone → Settings Reset. Select "Erase All Data." It takes a few minutes. Once turned on, you'll get a clean system with no debris or errors.
⚠️ Warning: This step is irreversible. All contacts, photos, apps and settings will be deleted without recovery if there is no backup.
Once reset, don't restore applications from the old backup automatically; install only the right programs again. Often, it's the old settings and version conflicts that cause memory problems.
☑️ Preparation for full discharge
Prevention of memory overflow
To keep the problem from coming back in a month, change your smartphone habits, regular digital hygiene is more important than one-off cleanings, and make a rule: check your download folder once a week.
Use cloud storage for photos and videos. Services like Google One or Yandex.Disk have automatic backup features, configure them over Wi-Fi to avoid wasting mobile traffic.
Xiaomi engineers are constantly optimizing the file system in new versions of MIUI. Outdated firmware can less manage cache and fragmentation of data.
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Regularly cleaning the messenger cache and transferring photos to the cloud prevents 90% of memory problems.
Don’t install the dubious Play Market cleaners, which are often the source of advertising and garbage, and Xiaomi’s built-in tools are enough to keep the system in order.