Xiaomi’s Redmi line of smartphones has earned a lot of popularity due to their excellent value for money, but over time, even the most reliable devices can slow down. The Redmi 7, released a few years ago, still remains in service with millions of users, but the accumulated digital debris, the remnants of remote applications and fragmentation of the file system inevitably affect performance. If your phone begins to open programs for a long time, hang over while scrolling tape or suddenly discharge, it’s time to do a deep cleaning.
In this guide, we will look at all available optimization methods, from simple built-in tools to radical reset. It is important to understand that memory cleaning is not just about removing photos, but a comprehensive maintenance process for the Android system and the MIUI shell. The right approach will extend the life of the device and return it to its previous sharpness of response without the need to buy a new gadget.
Before you start to take action, you need to assess the current state of the system and understand what exactly occupies space. Often users are surprised to find that half of the storage is occupied by messenger data or a system cache that they did not even know existed. Competent diagnosis is the first step to successful optimization.
Xiaomi’s built-in tools provide powerful maintenance tools, but they require proper use. Don’t rely on automatic features alone, as manual controls allow you to achieve better results. Let’s look at how to effectively use the regular tools and third-party utilities to clean up your Redmi 7.
Diagnostics of storage and analysis of occupied place
The first step in any cleaning is to analyze in detail what exactly the device's internal memory is filled with. The MIUI system has a built-in analyzer that allows you to visually evaluate the distribution of files. To access it, you need to go to the Settings menu → Storage, where the system will present the data as a color diagram, which helps to instantly identify the "eaters" of space, which are often video files or social network cache.
Special attention should be paid to the Download folder and the directories of messengers such as Telegram or WhatsApp. These applications by default store all received media files, which can take several gigabytes in a few months. Redmi 7 with its limited internal memory is critical. Deleting unnecessary videos and documents from these folders often frees up to 30% of free space.
⚠️ Note: Before mass deletion, be sure to check the Recycle Bin folder in the gallery and file manager. Files can be stored there for another 30 days, continuing to take up space, but can be restored in case of an error.
System applications also tend to grow. Apps → All applications can be found with programs you haven't used in a long time. Removing these heavyweights not only frees up space, but also removes background processes that consume RAM. If the application can't be removed, it can be disabled, which prevents it from being updated and running in the background.
For a deeper analysis, you can use the built-in Security app, which scans your device for duplicates, large files, and rarely used programs, and using it regularly helps you maintain order without having to go deep into the file system.
Cleaning the cache and temporary files of the system
Cache is temporary data that apps save to make things faster.However, over time, these files can become corrupted or redundant, causing conflicts and slowing down Redmi 7. Cache clearing is a secure procedure that doesn't delete your personal data, logins or passwords, but effectively frees up space.
The easiest way to clear the cache is to use the Cleanup app (a broomstick icon) that is located in the Tools folder or on the desktop. Once the scan is started, the system will prompt you to delete temporary files, installer package residues and advertising debris. Advertising IDs should also be deleted regularly, this not only cleans the memory, but also increases privacy.
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For more thorough cache cleaning of a particular application, go to Settings → Apps → Select the app → Storage → Clear the cache. Don’t confuse it with the Clean All button, which will delete your data in the app!
In addition to the standard cleaning, MIUI has a hidden section for deep cleaning. Going to Settings → Advanced Settings → Memory, you can run a more detailed scan, where the system will prompt you to delete files left over from remote applications and unused APK installation packages.
It's important to distinguish between cache and data. If you clean the app data, it will go back to the state immediately after installation, and you'll have to re-enter the settings. Cache can be cleaned safely. For system processes like Google Play Services or system UI, cleaning the cache can solve the interface freeze problems.
☑️ Weekly cache cleaning
Some users prefer to use the deep cleaning mode available in the security app, which finds similar images, old screenshots and empty folders. While the automation works well, manually rechecking the results before deleting will never be superfluous, so as not to accidentally delete important work documents.
Application and Autoboot Management
One of the main reasons Redmi 7 is slowing down is the number of apps running in the background. Even if you swipe the program, MIUI often leaves the processes active for quick start-up. Autoboot control is key to optimizing the performance of budget devices.
From the Settings menu → Apps → Permissions → Autorun, you can choose which programs are allowed to run with the system. It is recommended to leave autoboot on only for messengers (to receive notifications) and alarm clock. All other applications, including stores, browsers and games, it is better to exclude from this list, this will significantly reduce the load on the processor and RAM immediately after the phone is turned on.
| Type of application | Recommendation | Impact on the battery |
|---|---|---|
| Messengers (WhatsApp, Telegram) | Leave auto-start. | Average. |
| Social media | Disable autostart | High. |
| Games | Disable autostart | High (in the background) |
| System services | Don't change | Critical. |
Also worth noting is the Extension Memory feature, if available in your firmware version, which allows you to use some of your internal memory as virtual RAM. However, on Redmi 7 eMMC, enabling this feature can, on the contrary, slow down the system. Experiment with this setting carefully.
⚠️ Warning: Don’t use third-party accelerators from Play Market that promise miraculous increases RAM. In Android, memory management is built-in by default, and such applications only consume resources and show advertising.
To manage installed programs, use the Settings → Applications menu, where you can see how much space each application takes up and how much data it consumes. If you see a program that hasn't been used in months, feel free to delete it. If necessary, you can always download it again.
Working with multimedia and duplicates
Photos and videos are the main content that fills the memory of a smartphone. owners of Redmi 7 often face space shortages because of media files. Regularly reviewing the gallery and using cloud storage is a must for comfortable use.
The Gallery app has a built-in album called Deleted, which stores files for 30 days. Remember to periodically clean it, because the files take up space there. It's also worth checking the screenshot albums and saved images from instant messengers, which are often duplicated. Removing duplicates is a quick way to free up gigabytes.
How to find hidden large files?
To store the archive of photos, the best way to use cloud services, such as Google Photos or Yandex.Disk. Set up automatic synchronization with the quality of "Saving space" (compression), which will store an unlimited number of images in the cloud, removing them from the device, making local memory available for the system and applications.
Remember DCIM →.thumbnails. This hidden system folder stores thumbnails of your photos for quick viewing in the gallery. Over time, this file can grow to several gigabytes. It can be safely deleted through the file manager (by enabling the display of hidden files), the system will create it again, but in a smaller size.
Radical methods: Reset to factory settings
If software cleaning and deleting files didn’t work and Redmi 7 continues to run insecurely, the last and most effective method is a full reset to factory settings (Hard Reset), which returns the phone to a “store-like” state, removing absolutely all data, settings and applications.
Before performing a reset, it is critical to back up all data on your computer or in the cloud, as it will be impossible to recover deleted information after Hard Reset. Make sure that the battery is at least 50% so that the phone does not turn off in the process, which can damage system files.
There are two ways to reset: the first is through the settings menu: Settings → About phone → Reset → Erase all data. This method is convenient if the phone is turned on and working at least partially. The second method is through Recovery mode, which is used if the phone is not loaded or locked.
To enter Recovery mode on your phone turned off, press the Volume Up and Power buttons at the same time. Hold them until the Mi logo appears, then release the power button, while continuing to keep the volume. In the menu that appears (manage volume buttons, select power button), select Wipe Data → Wipe All Data → Confirm.
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Hard Reset is the only solution that is guaranteed to eliminate software errors, viruses and deep system conflicts that cannot be corrected by a conventional cleaning.
Once the process is complete, the phone will restart, and the initial setup will begin. It will take a few minutes. You will get a clean, fast system without any accumulated debris. The first few hours will be occupied with background indexing of files, so a little heat during this period is normal.
Prevention and maintenance of productivity
To keep the Redmi 7 running as fast as possible, it is important to follow certain operating rules: prevention takes less time than treating a sick system, and regular maintenance avoids critical memory-deficit situations.
Try not to fill up your internal memory completely. When less than 10-15% of the space is free, the speed of writing and reading data drops significantly, leading to interface lags. Use a MicroSD memory card to store photos, videos and music, leaving the internal memory for installing applications.
- 🔄 Update the system: Install official updates MIUI, Because they often provide performance optimization.
- 🚫 Avoid heavy wallpaper: they constantly use the resources of the processor and GPU.
- 🧹 Clean once a week: 5 minutes a week will save hours of nerves in the future.
Also, you should limit the background activity of heavy applications, so you can set a limit in the battery settings for programs that you rarely use, which will prevent them from running in the background and save battery power, which is especially true for devices with already worn-out batteries.
Use lightweight versions of apps if the standard ones are slow. For example, Facebook Lite or Google Go consume significantly less resources than their full counterparts, which is ideal for Redmi 7.