Modern smartphones, even time-tested ones like the Xiaomi Redmi 5, are slowing down over time, and it’s an inevitable process of accumulating temporary files that the system and apps create to speed up access to data. However, when they become too many, they take up precious space and slow down the MIUI operating system. That’s why regular cache cleaning is an important procedure to keep the device on track.
Many users mistakenly believe that deleting the cache will lead to loss of personal photos or contacts. It is not. Cache is only a temporary buffer that can be safely cleaned without risking your personal information. In this article, we will detail all the cleaning methods on the Redmi 5 model, from built-in tools to manual control through the engineering menu.
You'll learn to distinguish between temporary file types and when to clean everything and when to be selective. Proper maintenance of your Xiaomi's memory will extend its life and make it more comfortable to use. Let's start optimizing your device right now.
What is cache and why does it take up memory on Redmi 5?
The cache in the Android operating system is a special storage section designed to quickly access frequently used information. When you open an application, such as a social network or a browser, the system stores some of the data in cache. This allows you to download content faster when you restart it without downloading it again from the Internet. However, on budget models such as the Xiaomi Redmi 5, the amount of internal memory is often limited, and the cache can grow to critical sizes.
The main problem is that temporary files are rarely automatically deleted in full. Over time, they can take several gigabytes, causing a lack of space to install new programs or update the system. Moreover, a damaged cache can cause crashes when an application stops opening or crashes immediately after launch. Clearing the cache helps to reset these errors and return the device to its former agility.
⚠️ Caution: Clearing the cache does not delete your logins, passwords, correspondence or media files. However, after cleaning some applications (for example, Instagram or Telegram), you may need to re-authenticate, as session data can also be stored in temporary files.
It is important to understand the difference between an application cache and a system cache: the former can be cleaned selectively for each program, the latter affects the operation of the entire MIUI operating shell. At Redmi 5, with its modest characteristics by modern standards, competent management of this data becomes a key factor in performance.
Technical details of the cache in Android
Use of the built-in "Security" application
The easiest and safest way to clean up the cache on Xiaomi Redmi 5 is to use a regular app from developers. MIUI shell is famous for its optimization tools that are already built into the system and do not require additional software installation.
To get started, look for an icon on your desktop called Security (usually green with a shield) and when you run the app, you'll see a large Cleanup button. Click on it and the system will automatically scan the device for temporary files, remnants of deleted apps and other debris. The scanning process on Redmi 5 usually takes no more than 10-15 seconds.
☑️ Quick cleaning algorithm
Once the analysis is complete, the security app will show the amount of debris found, which can often reach 500 MB or more if the cleanup has not been done for a long time, press the cleanup button and the system will delete temporary files. It is important to note that this method only removes the secure cache without touching important data of your accounts.
If you want more detailed control, you can select Deep Clean from the same Cleanup section, where the system will prompt you to delete the cache of specific applications, large files and duplicates, and be careful when selecting files in this section so that you do not accidentally delete the desired documents or downloads.
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For maximum efficiency, clean up the Security app every 1-2 weeks to prevent a critical mass of temporary files from accumulating, which can slow down the Snapdragon 425 processor installed in Redmi 5.
Manually cleaning the cache of individual applications
Sometimes the problem isn’t with the system as a whole, but with a particular application that doesn’t work properly or takes up too much space. In such cases, you can manually clean the cache for a particular program on Xiaomi Redmi 5, and this is especially true for “heavy” applications like YouTube, TikTok, Viber or browsers.
To do this, go to your smartphone's settings menu. Find the Apps section and select All Apps. You'll see a complete list of installed software. Find the app you want, like Chrome, and click on it. From the menu that opens, select Memory.
Here you will see two buttons: Clear and Clear Everything. We are interested in the Clear button (sometimes marked as Clear Cache) and clicking on it will only delete temporary files. The Clear All button (or Reset) will also delete authorization and settings, so use it only if you want to reset the app completely.
- 📱 Open "Settings» → «Annexes» → «All applications».
- 🔍 Find the problem app in the list (you can use the search).
- 💾 Click on “Memory” and select “Clear».
- ✅ Confirm the action in the pop-up window.
This allows you to free up space point by point without affecting the work of other programs, for example, if you have a cache of the messenger, cleaning will speed up its launch, but will not delete your correspondence history if it is stored on the server or in the cloud.
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Manually cleaning the cache of a particular application is the best solution if the program is unstable, flies out or takes a long time to load, and reinstallation is not required.
Cleaning the system cache through Recovery Mode
The deepest level of cleanup available to a Xiaomi Redmi 5 user without obtaining root rights is to clean the system cache through Recovery Mode, which removes temporary files of the operating system itself that can accumulate after updates or crashes. This is a “heavy artillery” that is worth using if the smartphone starts to work noticeably slower or there are interface glitches.
To enter recovery mode, you need to turn off your smartphone completely. Then press the on and volume button at the same time. Hold them until the Mi logo appears, then release the on button, keep the volume up, and you will be taken to the Recovery menu, where the navigation is done with the volume button and the selection is done with the power button.
Recovery menu:
Reboot
Wipe Data
Wipe Cache Partition
Connect with MIAssistantFrom the menu that opens, select Wipe Cache Partition. Confirm. The system will warn you that it is safe and will not affect personal files. The cleanup process will take a few seconds. Once complete, select Reboot to restart the device. The first run after this procedure can last longer than usual, it is normal, the system reassembles the cache again.
⚠️ Warning: Be very careful on the Recovery menu. Do not select "Wipe Data" or "Factory Reset" unless you want to completely erase all data from your phone, returning it to factory settings.
Using this method on Redmi 5 is especially useful after updating the version of MIUI. Residual files from the old version of the system can conflict with the new one, causing heating and battery discharge.
Comparison of cleaning methods: efficiency table
To make it easier for you to choose the right method for your situation, we have prepared a comparison table that will help you understand what method of cleaning the cache on Xiaomi Redmi 5 will be most effective in your case.
| Cleaning method | Security | Efficiency | Difficulty |
|---|---|---|---|
| Security annex | Tall. | Medium | Low. |
| Application settings | Tall. | High (point) | Medium |
| Recovery Mode | Tall. | Maximum | Tall. |
| Third-party utilities | Medium | Medium | Low. |
As you can see from the table, Xiaomi's built-in tools provide a better balance between security and results. Third-party utilities often simply duplicate system functions, but require unnecessary permissions and display advertising. Using Recovery Mode gives the best result for the system, but requires accuracy in performing actions.
For daily use, the first method is enough. If you notice that a particular application is eating up all memory, go to manual control through settings. Only when global performance problems Redmi 5 should resort to recovery mode.
Cleaning cache in the browser and messengers
Browsers and instant messengers deserve special attention, as they are the main “generators” of garbage on any Android smartphone. With Xiaomi Redmi 5, with its limited memory (often 16 or 32 GB), these applications can take up to half of the total space. Browsers save copies of visited pages, pictures and scripts to make sites load faster when you visit again.
In popular messengers like Telegram or WhatsApp, cache is made from photos, videos and voice messages viewed. Telegram, for example, has a built-in automatic cache cleaner. Go to Settings → Data and Memory → Memory Use. Here you can set auto-delete the cache in 3 days, a week or a month. This is a critical setting for Redmi 5 owners, which will eliminate the need for manual cleaning in the future.
In Chrome or the standard Mi Browser, the cleanup is done via the history menu. Click on three dots in the corner of the screen, select History → Clear History. Make sure you tick the box opposite to Images and other files saved in cache. Clearing your history and cookies will also help free up space, but will require re-entry to some sites.
- 🗑️ In Telegram, enable autocleaning of the cache in the settings.
- 🌐 In your browser, delete the cache once a week through history.
- 📸 WhatsApp can selectively remove large videos from storage.
Regular monitoring of these applications will allow your Redmi 5 to run consistently for a long time. Don’t ignore the memory shortfall notifications that periodically appear on the system – this is a signal to action.