Modern Xiaomi and Redmi smartphones offer impressive specs, but even powerful hardware faces a shortage of free space over time. When internal storage overflows, the system starts to run slower, apps fly out, and new photos and videos stop being saved, this is due to the accumulation of temporary files, app cache and forgotten downloads that take up valuable gigabytes.
In this article, we will discuss proven ways to free up memory on your device without losing important data. You will learn to use the built-in tools of the MIUI and HyperOS shell, as well as third-party methods for deep cleaning the system.
Before you start, you need to understand the difference between user files and system debris: the former is safe to remove, and the latter must be approached carefully so as not to disrupt the Android operating system. We will take a detailed look at each type of file and explain what can be deleted without fear.
Storage Analysis: Finding the Biggest Files
The first step is always to diagnose, know exactly what takes up the lion’s share of space, and Xiaomi’s built-in tools allow you to quickly visualize the structure of memory, but for deeper analysis, you’d better use specialized utility or file managers with advanced features.
Often, users are unaware that messengers like Telegram or WhatsApp can take up tens of gigabytes, and these apps store all the photos, videos and documents they view into local memory, and without regular cleaning, the folders of media files grow to giant sizes, eating up space invisibly.
Also worth noting is the Download folder, where many users have been downloading APK installation files, presentations, music and documents that are no longer needed for years, and simply removing old downloads can instantly free up a few gigabytes.
- 📂 Use the built-in Explorer app to sort files by size.
- 📸 Check the gallery for serial shots and blurred videos in 4K.
- 💬 Go to the settings of the messenger storage to clean the chat cache.
It is important not just to delete files at random, but to understand their purpose. System files are best not to touch without deep knowledge, as their removal can lead to errors in the MIUI.
Use of the built-in "Security" application
The MIUI shell and the new HyperOS have a powerful built-in optimization tool.The Security app is available on every Xiaomi smartphone out of the box and does not require additional software installation.
Cleanup scans the device for temporary files, remnants of deleted applications and advertising debris. The scanner’s algorithms are smart enough to avoid damaging important user data, but also to efficiently find hidden debris in system directories.
⚠️ Attention: The Acceleration feature in the security application also closes the background processes, which can temporarily free up RAM (RAM), But it doesn't affect permanent storage.
To start a deep cleaning, open the Security → Cleanup app. The system will prompt you to delete the files that occupy space. After a standard check, click on the Garbage icon to run a more detailed scan, which will take longer but give you a better result.
☑️ Action Plan through Security Application
Regular use of this tool helps keep the system clean, but you shouldn’t rely on automation completely: the built-in scanner can miss some large files in specific folders, so manual control is mandatory.
Cleaning the cache of apps and social media
Social media and instant messengers are the main memory eaters on Android. Instagram, TikTok, YouTube and Telegram cache the feeds they’ve watched to load them faster when reopened. Over time, this cache can reach 5-10 GB or more, turning the phone into a slow device.
You can clear the cache through the specific application settings. Go to Settings → Apps → All apps, select the desired program (for example, YouTube) and find the Memory option. There will be a “Clear Cache” button.
It is important to distinguish between Clear Cache and Clear Everything. The first operation is secure and only deletes temporary files. The second operation will reset the application to the state immediately after installation, removing your logins, correspondence and settings.
- 🗑️ Clean up the cache of video services (YouTube, Netflix) first.
- 📱 In Telegram, use the built-in “Memory Use” function in the application settings.
- 🌐 Browsers (Chrome, Mi Browser) also accumulate gigabytes of web pages.
Secret Telegram Secret
Some apps, such as navigators or offline music services, can store maps and tracks in cache. Before cleaning, make sure you don't need saved offline maps, or you'll have to download them again, consuming traffic.
Removal of duplicates and similar photos
Modern Xiaomi cameras take great pictures, but the files weigh a lot, especially in RAW or when shooting in high resolution. Often the gallery accumulates hundreds of similar frames, serial shooting and screenshots that are no longer relevant.
The MIUI's built-in gallery can find similar photos automatically. The Albums section often has a similar photo category, where the system groups the images taken at the same time, a convenient way to pick the best shot and delete the rest.
It's also worth checking the Screenshots and Sends folders, and we often take screenshots to transmit information, but forget to delete them, and in a year, these images can gain several gigabytes.
For more advanced work, you can use third-party applications to find duplicates, but standard tools are usually enough, and the main thing is to do this regularly, for example, once a month, so as not to accumulate “digital junk”.
💡
Regularly cleaning a gallery is the most effective way to get back a few gigabytes of free space without risking the system.
Remember the gallery cart, because deleted photos often don't disappear immediately, but instead they go to the Deleted folder, which is stored for 30 days, and you have to clean this folder to make room.
Transferring data to cloud services and PCs
If the physical memory on the device is categorically lacking, the best solution is to transfer archival data to external storage. Cloud services such as Google Photos, Yandex.Disk or Xiaomi Cloud, allow you to store photos and videos online, freeing up space on your smartphone.
Google Photos offers a “Free Space” feature that removes images that have already been successfully uploaded to the cloud from your device, a safe and quick way to clear your gallery.
It's easier to use a computer to carry large amounts of data (movies, work documents). USB-Cable in File Transfer mode and copy old folders to your PC hard drive.
| Storage method | Volume free | Speed of access | Reliability |
|---|---|---|---|
| Google Photo | 15 GB (total) | Tall. | Tall. |
| Xiaomi Cloud | 5GB | Medium | Medium |
| USB/PC | Depends on the disc. | Instant. | Depends on the disc. |
| SD Card | Up to 1 TB | Tall. | Medium |
Using a microSD card is a great option for Redmi’s budget models without NFC and with a small amount of internal memory. Modern cards support speeds comparable to internal storage, allowing you to run applications and store heavy files without delay.
Radical measures: resetting and formatting
If none of the methods worked and the system continues to write about space shortages, it is possible that the file system has been damaged or a critical amount of system debris has accumulated that cannot be removed by regular means, in which case a complete reset helps.
Formatting internal memory through Recovery completely erases all data, including photos, contacts and applications, returning the phone to a factory state.
You can reset via the settings menu: Settings → About Phone → Reset → Erase all data. The process will take 10-15 minutes, after which you will get a clean system with maximum free memory.
⚠️ Warning: Before resetting, make sure that the battery is at least 50%, or better connect the device to the charger. interruption of the reset process can lead to software failure (bootloop).
This measure is extreme, but often the only one possible to reanimate old smartphones that have become a brick because of overcrowded memory.
💡
Tip: Don't restore applications from the backup "wholesale" after resetting. Install only the essentials manually. Often, it's in the backups of old applications that the garbage is hidden, which will fill the memory again.
Remember that regular maintenance of the device is more important than radical measures, if you keep an eye on storage, remove unnecessary and use cloud technology, the need for a complete reset may never arise.