Xiaomi’s Redmi 5 series of smartphones remain popular due to the balance of price and quality. However, over time, even the most reliable devices face a shortage of internal space. Android operating system and MIUI shell actively accumulate temporary files, which leads to a slowdown in the interface.
Users often notice that the phone is slowing down and apps are loading longer than usual, a direct consequence of overflowing internal storage, and the system simply cannot manage resources efficiently when space is in the hundreds of megabytes.
In this guide, we will discuss safe and proven ways to clean up memory, learn how to remove hidden debris, transfer data to a memory card, and optimize the operation of the device without losing important documents.
Diagnostics of storage occupancy
Before you start deleting files, you need to understand what's taking up space, and the MIUI has a powerful analyzer built in that allows you to study the structure of the occupied space in detail, and without that information, cleaning can become a chaotic deletion of the data you want.
To start your diagnosis, go to Settings → Storage, where the system will show you a visualization of the file distribution by category, and look at the Apps, Images, and System Files sections.
⚠️ Note: Do not delete files from folders with system names unless you are sure of their purpose.This can lead to unstable work of Redmi 5.
Often, the bulk of data is cached files of messengers and streaming services, and the cache of applications can grow to several gigabytes, occupying critical space.
💡
Regularly diagnosing storage helps identify memory eaters before the phone starts to brake.
Standard MIUI cleaning tools
Every Xiaomi smartphone has a Security app preinstalled, which is the primary tool for quick system optimization, and it automatically scans the device for temporary files and suggests that they be deleted.
Launch the app and press the Cleanup button, and the system will analyze the garbage and suggest that you delete the unnecessary files, a process that takes a few seconds and is safe for user data.
But automatic cleaning doesn't always remove everything that's superfluous. For a deeper job, click on Deep Clean. Here you can find remnants of deleted applications and large files that are rarely used.
- 🗑️ Delete temporary system and browser files
- 📦 Search and removal APK-installer
- 📸 Detecting similar or blurred photos
- 📱 Managing Rarely Used Applications
Use the “Accelerate” function in the same app to free up RAM, which will help you run heavy applications more smoothly.
Manual deletion of cache and application data
Some apps, especially social networks like Telegram or Viber, store huge amounts of media files, and standard cleaning may not affect them completely, so manual intervention is required.
Go to Settings → Applications → All apps. Select a heavy app from the list. Inside the program menu, find the Memory or Storage button.
There are two important functions available here: Clear cache and Clear everything. The first deletes temporary data, the second resets the application to a state immediately after installation.
☑️ Checking messengers
Be careful with the Clear Everything button (or Delete Data) that will delete your logins, correspondence, and settings within a particular application, and only use this option if you want to reinstall the program completely.
⚠️ Before completely clearing the messenger data, be sure to back up the chats to the cloud, otherwise the correspondence will be lost irretrievably.
Regularly checking the list of installed applications helps to find forgotten programs that continue to consume resources in the background.
Work with gallery and heavy files
Media files are the most common type of data that fills up Redmi 5 memory. High-resolution photos and videos quickly take up gigabytes of free space.
Use the built-in file manager to sort files by size. In the Explorer app, select Size Sort, which will quickly find the heaviest video files.
Often, the DCIM →.thumbnails folder accumulates thumbnails of photos. This hidden gallery cache can weigh several gigabytes. It can be safely removed by freeing up a significant amount of space.
Where to look for hidden large files
Consider migrating your photo archive to your computer or to the cloud. Services like Google Photos allow you to store your photos in the cloud, freeing up space on your device.
- 📷 Deletion of serial images and duplicates
- 🎥 Compressing or removing long videos
- ☁️ Synchronization with the cloud
- 📂 Transfer files to a microSD card
Use of microSD memory card
Xiaomi Redmi 5 is equipped with a hybrid slot that allows you to use a microSD memory card. This is a great solution for expanding the storage of photos, music and documents.
Once the card is installed, the system will suggest using it as a portable storage, in which you can transfer files there manually or automatically through the camera settings.
V MIUI There is a function "Move to the SD-maps for some applications, but current versions of Android limit this capability, and you can move mostly only the data generated inside the app.
| Type of data | Recommended seat | Impact on speed |
|---|---|---|
| System applications | Internal memory. | High speed of operation |
| Photos and videos | SD-map | Depends on the class of the card. |
| Cash messengers | Internal memory. | Fast loading |
| Music and Films | SD-map | Comfortable reproduction |
It is important to choose a memory card with a speed class of at least Class 10 or UHS-I. Slow cards can cause delays when shooting videos or opening files.
💡
Format a new memory card immediately after installation via phone settings (Settings) → Warehouse → SD-map → Format) to ensure file system compatibility.
Radical measures: Resetting to factory settings
If none of the previous methods helped to free up enough space, it is possible that critical errors have accumulated in the system, in which case a complete reset helps.
This procedure will return Redmi 5 to the out-of-the-box state, and all user data, contacts, photos and apps will be deleted.
Go to Settings → Advanced Settings → Recovery and Reset. Select “Reset” and the system will warn you of data loss.
⚠️ Warning: Before resetting, make sure the battery is charged at least 50-60%. Interrupting the process due to battery discharge can cause software to break down.
Once reset, the phone will work as quickly as possible, as the system partitions will be cleared of debris, you just have to re-install the necessary applications.
💡
A complete reset is a last resort that is guaranteed to solve the system partition overflow problems if there were no hardware damage.