The Redmi 9A series is well-deservedly popular for its affordability, but budget device owners often face a lack of space. MIUI’s operating system accumulates a lot of temporary files over time that can significantly slow down the gadget and cause app crashes. Understanding how to properly manage internal storage is a key skill for comfortable use of the phone.
Overflowing memory is not just a message that you can’t take a new photo, it’s a signal that the system is no longer able to place temporary data for running programs. Xiaomi owners should regularly conduct prevention to avoid interface lags and sudden crashes of games or messengers. In this article, we will discuss safe and effective methods of vacating space.
It's worth noting that standard cleaning methods built into the MIUI shell work quite efficiently, but require the right approach. Blindly deleting all files in a row can lead to the loss of important data, so it's important to know which folders you can touch and which you should not touch. We'll look at both automatic and manual ways to restore order in the file system.
Analysis of the occupied space by built-in means
Before you start deleting files, you need to understand what exactly takes up the most space on your Redmi 9A. The MIUI shell has a powerful analysis tool that allows you to look at the distribution of data in detail. To run this tool, go to the Settings menu → About Phone → Storage. Here, the system will visually show how much space is occupied by applications, photos, videos and system files.
Special attention should be paid to the "Apps" section, as they often consume the lion's share of resources. Social networks and instant messengers tend to grow to gigabytes, saving a cache of images and video files. size APK-file, user data volume and cache size.
It's important to distinguish between "app data" and "cache." If you clean the data, it will return to a state immediately after installation, losing all your logins, settings and correspondence. Clearing the cache is safe and only deletes temporary files that can be created again. Regular monitoring of these metrics helps keep Xiaomi on track.
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Visual storage analysis is the first and must-do step before any file deletion action.
The system can also tell you which files are duplicates or large, but rarely used. Don't ignore these tips, as they are based on frequency analysis algorithms. Proper use of built-in analytics allows you to free up to 20-30% of space without installing third-party software.
Use of the Application Security and Cleaning
Each Xiaomi smartphone has a Security system app preinstalled, which includes the Cleanup module, which is the main tool for quick garbage control. Launch the app, select the Cleanup tab and wait until the scan is complete. The system will find temporary files, remnants of remote programs and advertising debris.
☑️ Quick cleaning algorithm
Once you scan, you'll see a list of categories of garbage that you can delete, usually update files, empty folders and sketch cache, press the clean button to make room, but be careful: sometimes files that you recently downloaded, but haven't seen yet, get into this list.
⚠️ Before final cleanup confirmation, carefully review the list of files. Make sure that they are not important documents or photos that you just downloaded from the Internet.
The Security app also features Deep Cleaning, which allows you to find large files, duplicate photos and rarely used apps, a feature that is especially useful for Redmi 9A, as it helps to find hidden amounts of data that are not visible during normal browsing.
Don't just rely on automatic cleaning. You can manually log into the Big Files and Duplicates sections periodically. Automation can skip old WhatsApp videos or identical screenshots that take megabytes. Manual control combined with an automatic scanner gives you the best result.
Cleaning the cache of messengers and social networks
The most voracious apps on any Android smartphone are messengers: Telegram, WhatsApp, Viber and social networks. They store every photo and video you see in your device memory. To clear Telegram, go to Settings → Data and memory → Memory Use. Here you can clear the cache with a single click without deleting correspondence.
On WhatsApp, the situation is similar, but file management is more detailed. Go to Settings → Data and Storage → Storage Management. The system will show files larger than 5 MB and chat rooms that take up the most space. You can selectively remove heavy videos from specific dialogues, saving text history of communication.
- 📱 In Telegram, the cache can be cleaned automatically: set the timer "Delete in 3 days" or "1 week" in the memory settings.
- 🗑️ On WhatsApp, check the Documents tab before removing large files, which often contains forgotten presentations and archives.
- 📸 In Instagram and Facebook, the cache is inflated due to the storis and tape viewed; cleaning up data in Android settings will reset authorization.
- 🔄 Regularly cleaning the cache of these apps could free up 2 to 10GB of space on a budget Redmi 9A.
It’s important to understand the difference between cleaning up the cache inside an app and cleaning up the data through your Android settings. If you select “Clear Data” in the WhatsApp system settings, you’ll delete all messages and account if there’s no backup. Only use built-in cleaning tools inside the apps themselves for security.
⚠️ Warning: Clearing the app data (not the cache) will result in the complete deletion of your account and correspondence. Always back up your chats to the cloud before doing so.
For users who actively share media files, it is recommended to set up automatic uploading of photos to the cloud and then removing them from the device, which will allow you to save your correspondence history, but not take up the precious internal memory of the phone with heavy original photos.
Removal of duplicates and large files
Over time, the Xiaomi Gallery has accumulated a lot of identical photos taken in serial mode, or screenshots that are no longer relevant. The MIUI integrated file manager can find duplicates. Open the Files app, select the Images category, and notice the pop-up prompts about similar photos.
Besides photos, you should check the Download folder. Often there are installations. APK-files of updated applications that are no longer needed or saved from the browser PDF-Deleting old installers is the easiest way to get back a few hundred megabytes. Also check your Bluetooth folder if you've ever taken files over the air.
Where to look for hidden big videos?
So you can sort files by size, and in any file manager, you can sort all the files on the device down in size, and it instantly shows you the heaviest objects, and it often turns out that a forgotten movie or screen recording takes 1-2 GB of data that you didn't even know you had.
| File type | Where to find | Security of removal |
|---|---|---|
| APK files | Download / Install folder | Safe if the application is installed |
| tumbnails | DCIM → .thumbnails | Safe, the system will create them again. |
| Log files | MIUI → debug_log | Safe, these are error reports. |
| Temporary files | Temp folder | Safe to remove |
Don't forget to check the gallery cart. On MIUI, deleted photos are stored for another 30 days, taking up space. To finally free up space, you need to go to the albums, scroll down to "Deleted" and click "Clean" before the space physically clears up on the disk.
Transfer data to memory card and cloud
Model Redmi 9A Supports microSD card installation, which is a lifesaver for owners of the version with a small amount of internal memory, and transferring media files to an external card is the best way to unload the system partition. To do this, insert a map, then in the Gallery or Files app, select a photo and video, click "Move" and specify the path to SD-map.
You can also change the camera settings so that new photos and videos are immediately saved to the memory card. Go to the camera settings (cog icon), find the item "Save to the memory card". SD-This will prevent the internal memory from overflowing in the future when you're shooting actively.
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Use high-quality UHS-I or higher memory cards, and cheap cards can slow down the camera and cause data loss when recording video.
Cloud services like Google Photos or Yandex.Disk make space even more efficient. Set up automatic sync of photos and videos to the cloud. Once the copies are uploaded, use the "Free Space" feature in the Google Photos app to remove the originals from the device, leaving them available online.
When transferring applications to a memory card, be careful. Not all programs support this feature correctly, and the Android system can work unstable if the memory card is removed or damaged. Only transfer media files and documents, leaving system applications on the internal drive for maximum speed.
Resetting settings as a radical method
If none of the above methods worked, and the phone continues to report a space shortage, there may have been a critical error in the file system, in which case a full factory reset helps, which will return the Redmi 9A to the state it was in immediately after purchase, completely clearing the memory.
Before you reset, make sure to back up all your important data. Reset will delete everything: contacts, photos, apps and settings. Go to Settings → Phone → Reset → Erase all data. The device will restart and begin the cleanup process, which can take 10-15 minutes.
⚠️ Warning: Make sure the battery is at least 50% battery power before starting reset. interruption of the process by turning off the phone may cause system damage and inability to turn on.
After reset, take your time to restore all applications from the backup at once. Install only the necessary programs and watch the memory fill for a few days. Often it turns out that some rarely used applications occupied the main space, and their absence will only improve the performance of the smartphone.
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A complete reset is an extreme measure that is effective in case of file system software failures, but requires careful backup preparation.
Regular maintenance of the device, deleting unnecessary files and controlling the cache of applications will allow you to forget about the problem of memory shortage. Xiaomi Redmi 9A is a reliable device that, if properly maintained, will last long and work quickly.