Xiaomi’s Redmi line of smartphones is deservedly popular due to their excellent price-performance ratio, but over time, even powerful hardware can face a shortage of resources. The Redmi 5 model, released a few years ago, is still a reliable assistant, but the accumulation of temporary files can significantly slow down its work. Understanding how to manage this data is the key to extending the life of the device.
In Android, which runs the MIUI shell, caching is important for speed, but data overload creates problems. Users often notice that the phone starts opening apps longer or shutting them spontaneously. Competent cleaning allows you to return the previous sharpness of the interface without the need for a complex reset.
In this article, we will take a look at all the available methods of freeing up memory, from simple built-in functions to deeper cleaning through the engineering menu. Regular maintenance of your gadget will help avoid freezes and prolong battery life. Let's look at the main reasons for slowing down and how to fix them.
What is cache and why is it filled on Redmi 5?
Cache is a temporary storage area where apps put frequently used information for quick access. When you run Instagram or YouTube, the device saves thumbnails of images, parts of videos and scripts so that you don't download them again the next time you log in, which makes it much faster, but over time, these files can reach several gigabytes in size.
On Xiaomi Redmi 5, which has a fixed amount of internal memory, cache overflow is critical. The system starts to work slower because it does not have enough space to write new temporary files. Cache overflow often causes random behavior of programs and errors when they start.
⚠️ Note: Deleting the cache does not affect your personal photos, contacts or correspondence. However, cleaning the data of a particular application (not to be confused with cache) can lead to loss of authorization and settings inside it.
It is important to distinguish between the app cache and the system cache: the former are created by user programs, the latter by the Android operating system itself to optimize processes. On Redmi 5, the system partition of memory is limited, so overflowing causes more serious consequences than on modern flagships.
Use of the built-in "Security" application
The easiest and safest way to clean up memory on Xiaomi devices is to use a standard system tool. The MIUI shell features a powerful Security app that automatically scans the device for junk files. This method is ideal for beginners, as it eliminates the risk of removing important system components.
To start the procedure, look for a shield and lightning icon on your desktop. Once you open the application, the system will automatically start scanning, which usually takes a few seconds, and you will see a green or red indicator showing the current memory status of your Redmi 5.
💡
Run a scan through the Security app once a week to keep your phone in optimal condition without manually sorting files.
Once you've done the analysis, click the big "Clean up" button, and the system will prompt you to delete the temporary files you find, and you can also go to the "Clean up" section for a more detailed view of what exactly is taking up space, where you can selectively delete large files or duplicate photos.
☑️ Weekly cleaning through “Safety»
Cleaning the cache of individual applications manually
Sometimes the problem is not the total amount of garbage, but the malfunction of one particular application, such as Telegram or Viber, which are known for their gluttonous consumption of memory, in which case you need to perform a personal cleaning through the system settings, which allows you to free up space without affecting the data of other programs.
To get into the application management menu, go to Settings → Apps → All Apps. In the list that opens, find the program you want. When you click on it, you will be taken to the control menu, which will display the amount of space occupied. You are interested in the “Clear” and “Clear Cache” buttons.
- 📱 Click on “Clear Cache” to delete only temporary files, saving logins and passwords.
- 🗑️ Select “Clean” (or “Clean Data”) if the app isn’t working properly, but remember that this will reset its settings.
- 📉 Keep an eye out for the cache size in this menu – if it grows too fast, it’s possible the app has bugs.
Pay particular attention to messengers and social networks. Telegram, for example, can take up to 10-15 GB of cache if you do not configure automatic cleaning inside the application. Redmi 5 is critical, so manual cleaning is the most effective.
💡
Manually clearing the cache of heavy apps like social media frees up the most space on older smartphone models.
Deep cleaning through the Recovery menu
For more experienced users, there is the option of cleaning the system cache through Recovery Mode, which is especially useful if the phone is unstable, freezes or does not load correctly, and allows you to delete temporary system files that are not deleted through the standard interface.
To enter recovery mode on Xiaomi Redmi 5, you need to turn the device off completely. Then press the on and volume button at the same time. Hold them until the Mi logo appears, after which the Recovery menu opens. The volume buttons control the device, and the choice is confirmed by the power button.
1. Turn off the smartphone.
2. Clutch Volume Up + Nutrition.
3. Select a language (English).
4. Select Wipe Data → Wipe Cache.
5. Confirm action and restart (Reboot).⚠️ Warning: In the Recovery menu, carefully select Wipe Cache. If you randomly select Wipe All Data, the phone will return to factory settings, and all your personal data will be destroyed.
This procedure does not require a connection to a computer and is safe for user data if done correctly, it helps to eliminate errors that occur after updating the system or installing incompatible software, and after cleaning the phone will start a little longer than usual, as the system will recreate the necessary temporary files.
Analysis of memory use and storage
To effectively manage memory, you need to understand what it consumes. Xiaomi has a detailed statistics section in its settings that shows the distribution of space occupied, which helps to identify hidden resource eaters that are not obvious when viewed briefly.
Go to Settings → Memory (or About Phone → Memory) and you'll see a pie chart and a list of categories here, and the system breaks it down into apps, images, video, audio, and so on, and it often turns out that most of it isn't photos, but messenger data or streaming cache.
| Data category | Description | Cleaning recommendation |
|---|---|---|
| Annexes | Established programmes and their data | Remove unused, clear the cache |
| Images | Photos and screenshots in the gallery | Move to PC or cloud |
| Video | Recorded videos and downloads | Delete old files from “Downloads” |
| System files | OS files and update cache | Cleaning through Recovery or “Security” |
Use this information to plan a cleanup. If the “Other” category takes up a suspiciously large amount of space, it is often a signal about the accumulated residual files of remote applications, in which case a third-party file manager can help to find hidden folders.
Use of third-party utilities for cleaning
If built-in tools aren't enough, you can turn to trusted third-party solutions, applications like CCleaner, Files by Google, or SD Maid that offer more flexible settings and deep scanning, and are able to find files that a standard MIUI analyzer might miss.
But be careful with so-called "accelerators" and "boosters" that promise incredible performance gains, often consume resources and display intrusive advertising. Redmi 5 is better off choosing lightweight utilities that don't hang in the background all the time.
- 🚀 Files by Google – a great choice for finding duplicates and large files, works without advertising.
- 🧹 SD Maid is a professional tool for deep cleaning of the “tails” of remote applications.
- ⚙️ CCleaner is a classic, but requires manual adjustment so as not to remove excess.
Install such programs only from the official Google Play Store. Avoid questionable ones APK-files from the browser, as they may contain malicious code that will only aggravate performance problems with your smartphone.
Why not use antivirus cleaning agents?
Prevention and useful tips for optimization
To avoid going back to cleaning too often, there are a few smartphone habits to implement: the Xiaomi Redmi 5 is reliable, but it requires careful attention to memory resources. Regular prevention takes less time than dealing with the effects of overflow.
Enable automatic cleaning in the Security settings, and the system will prompt you to remove the garbage when a critical amount of it accumulates, and it’s also helpful to periodically check the Downloads folder, which often includes forgotten APK installation files and documents.
⚠️ Warning: Do not fill the device's internal memory "to the end." For stable operation of Android, you must leave free at least 10-15% This will provide space for the temporary operations of the system.
Another important piece of advice is to keep an eye out for app updates. Developers often release patches that optimize memory consumption; outdated versions of programs may not work properly and create redundant cache; update software through Google Play or the built-in GetApps store.
💡
Free disk space (at least 15%) is more important for the speed of the Redmi 5 than having a powerful processor.