Smartphone Redmi 7A, despite its years, remains a popular device due to its reliability and autonomy, but its built-in storage often becomes a bottleneck. Owners of this model regularly encounter notifications about lack of space, which leads to system slowdowns and the inability to install new updates. Understanding how to competently manage the MIUI-based file system Androidis the key to extending the life of the gadget.
The process of freeing up space requires an integrated approach: from simply deleting photos to working with system folders, which many users are not even aware of. In this article, we will analyze in detail the data storage mechanisms on your device and offer proven optimization methods without losing important information. You will learn to distinguish safe cleaning from actions that can harm the operation of the operating system.
Analysis of the fullness of the internal storage
Before you start deleting files, you need to determine exactly what is taking up precious gigabytes. The system MIUI provides built-in tools for visualizing memory, but they do not always show the full picture. Go to the menu Settings → About phone → Storageto see the basic distribution of data between applications, images and system files.
It often turns out that the lion's share of space is occupied not by the applications themselves, but by their cached data and downloaded media files from messengers. Application cache can grow to several gigabytes, especially for social networks and browsers. Ignoring this fact leads to the user deleting the necessary photos, while junk files continue to take up space.
For a deeper analysis, it is recommended to use third-party utilities or a built-in explorer with a sorting function by size. Pay attention to the folder Download and directory DCIM, where duplicate images and forgotten APK installation files often accumulate. A competent audit allows you to identify hidden space eaters that are not displayed in the standard settings menu.
Clearing cache and temporary system files
The fastest way to free up space is to delete temporary files that accumulate during operation of the operating system. The shell MIUI has a built-in Security application that automatically scans the device for debris. However, manual control gives the best results, since the automation sometimes skips specific temporary files.
Go to Settings → Applications → All applications and select the largest apps, such as YouTube, Chrome or VK. Inside the menu of each application, find the “Storage” item and click the “Clear cache” button. It is important not to confuse this button with the “Erase data” option, which will delete your logins and login settings.
- 🗑️ The browser cache often contains gigabytes of downloaded images from visited sites that can be safely deleted.
- 📱 Thumbnails files in the gallery take up space, but are generated again the next time you view the photo.
- 🔄 Temporary system update files may remain in memory even after successfully installing a new version of Android.
There is also a hidden folder MIUI/debug_logwhere the system saves reports on mistakes. If you are not a developer and do not send logs to Xiaomi support, this directory can be periodically cleaned through the file manager. The accumulation of logs can quietly eat up hundreds of megabytes of free space.
Use the Explorer application from Xiaomi and turn on the display of hidden files in the settings to see folders starting with a dot, for example.thumbnails.
Working with instant messengers and social networks
Messengers are the main enemies of free memory on budget smartphones like Redmi 7A. Apps like WhatsApp and Telegram save all received images, videos and voice messages to the internal memory by default. Without regular cleaning, these folders can grow to sizes exceeding the volume of the system partition.
In the settings of each messenger there is a “Data and Storage” section where you can disable automatic downloading of media files. This will prevent further memory clogging, but will not remove existing garbage. To clean up, use the built-in storage management tools inside the applications themselves, which allow you to delete files by type or by chat.
⚠️ Attention: Before mass clearing chats in instant messengers, make sure that important documents and photos are saved in cloud storage or on your computer, since it is impossible to recover deleted messages.
Particular attention should be paid folder Android/mediawhere modern versions of Android store application data. This may contain cached videos from Instagram or downloaded files from Telegram. Manually checking this directory through the file manager allows you to delete specific heavy files that are not needed.
☑️ Cleaning messengers
Transferring data to a microSD memory card
One of the advantages of the model Redmi 7A is the presence of a card slot memory, which allows you to expand the available space. Transferring photos, videos and music files to external storage is the most effective method of dealing with lack of space. However, transferring the applications themselves is not always possible and depends on the support of this function by the developer of the specific software.
To transfer media files, open the “Explorer” application, select the desired folders (for example, DCIM, Download, Music) and select the “Move” function. Specify your SD card as the target directory. The system will perform the copy operation, after which the originals in the internal memory will be deleted.
| Data type | Recommended storage location | Impact on speed |
|---|---|---|
| Photos and videos | SD card (Class 10 and above) | Minimal |
| Music and audiobooks | SD card | None |
| System applications | Internal memory | Critical for speed |
| Game cache | Internal memory (preferably) | High (SD may slow down) |
Remember that the speed of working with files on a memory card may be lower than from the built-in storage, especially if used cheap low class card. For heavy games and applications that require fast loading of textures, it is better to leave the data in the internal memory, freeing up space by using media files.
What to do if the phone does not see the memory card?
Make sure that the card is formatted in the FAT32 or exFAT file system. Sometimes removing and reinserting the card while the phone is off helps. If the card is new, you may need to format it through the storage settings menu, but this will delete all data on it.
Deleting unused applications and duplicates
Over time, a lot of apps accumulate on your device that you no longer use. Pre-installed software (bloatware) from Xiaomi and telecom operators also takes up space, although often it cannot be removed using standard means. For such cases, there are special utilities that allow you to deactivate system applications without obtaining root access.
Regularly audit the installed software. Go to your apps settings and sort them by size or date of last use. If you haven't used the app for more than a month, feel free to delete it. Users often forget about installed games or photo editing utilities that were needed only once.
A separate problem is duplicate files. When downloading the same document from different sources or saving screenshots in different folders, the memory is filled with the same data. Use the duplicate finder in the Security app or third-party scanners to find and remove copies.
- 📂 Duplicate contacts can slow down your phone book, although they do not take up much space.
- 📸 Burst shots and bad shots are often saved in the Burst folder or similar directories.
- 📦 APK installation files become useless garbage after installing apps.
⚠️ Attention: When uninstalling system applications via ADB or third-party uninstallers, be extremely careful. Removing critical system components (for example, Services & Feedback or MiuiDaemon) can lead to unstable phone operation or endless reboots.
Removing even one heavy application with a cache can free up more space than clearing hundreds of small text files.
Resetting settings as a radical cleaning method
If none of the above methods helped free up enough space, the last resort is a full reset to factory settings. This procedure completely clears the internal memory, deleting all user data, applications and settings, returning the phone to as-is-out-of-the-box condition.
Be sure to back up your important data before performing a reset. Use Google cloud services or local copy to your computer and SD card. The reset process is performed through the menu Settings → About phone → Reset settings → Erase all data.
Settings → About phone → Reset settings → Erase all dataAfter rebooting, you will get a clean system with the maximum available volume memory. This is also a great way to get rid of software errors and glitches that may have accumulated over a long period of use. However, remember that restoring all applications and settings will take time.
⚠️ Attention: Make sure the battery charge is at least 50% before starting the reset. Interrupting the process by turning off the phone can damage the system partition and require flashing the device via a computer.
Alternative to a full reset
Try to create a new user in the system settings (if the Android version allows) and transfer only the applications you need there. The old profile with garbage can be deleted, which sometimes works faster than a full reset.
Prevention and rules for using memory
To prevent the problem of low memory from returning in a month, you need to change your smartphone usage habits. Regular file system hygiene should become a habit. Set a rule: check the “Downloads” folder once a week and delete unnecessary files, and clear the cache of main applications once a month.
Use cloud storage to automatically upload photos. Services like Google Photos allow you to store compressed photos for free and free up space on your device with the click of a button. This is especially true for Redmi 7A with its limited internal capacity.
Turn off auto-updating of applications via the mobile network and set up updating only over Wi-Fi so as not to download unnecessary temporary files in the background. Also keep track of what permissions you give to applications: deny access to writing files to those apps that do not need it to work.
Set up the “Free up space” function in Google Photos, which automatically deletes photos from your device that have already been uploaded to the cloud. This is the safest way to keep your gallery organized.
Why is the space not immediately freed up after deleting files?
The Android system uses the trash can in some file managers and galleries. Deleted files are actually moved to a temporary folder and stored there for 30 days. To free up space instantly, you need to go to the application trash and empty it completely.
Is it possible to transfer WhatsApp to a memory card on Redmi 7A?
You cannot directly transfer the WhatsApp application itself to an SD card in modern versions of Android. However, you can transfer media files (photos, videos) by changing the settings inside the messenger or manually moving the WhatsApp folder from the internal memory to the card through Explorer.
What is the Android/obb folder and can it be deleted?
The obb folder stores cache files of heavy games and some applications. You can delete its contents, but after this the games may not start or will require re-downloading the data the first time you launch them. Delete only the folders of those games that you have already deleted from the phone.
How to find the exact amount of free space through the engineering menu?
Enter the code in your phone ##6484## to enter the CIT engineering menu. There you can find sections that display technical information about the storage, but for normal cleaning it is more convenient to use standard settings.
Does full memory affect the speed of the Redmi 7A?
Yes, it does critically. When the internal memory is more than 90% full, the speed of writing and reading data drops, the system begins to slow down, and applications may crash. It is recommended to always keep at least 10-15% of the total memory free.