Xiaomi Redmi 7, released in 2019, remains a popular device due to its reliability and availability, but over time owners often face a lack of free space. MIUI operating system installed on the device tends to accumulate large amounts of temporary files, remnants of deleted applications and junk data, which significantly slows down the gadget. Memory cleaning becomes a critical procedure when notifications about space shortages begin to appear constantly, blocking the installation of new programs or receiving messages.
In this article, we will take a look at all available methods of freeing up space, from safe manual cleaning to radical measures like a complete reset. You will learn how to properly use the built-in MIUI tools, which folders can be deleted without risk to the system, and how to identify hidden files that take up gigabytes. On Redmi 7 with internal storage of 32 GB or 64 GB, the system partition can take up to 40% of the space, so each freed megabyte affects performance.
Ignoring storage overflows can lead not only to interface brakes, but also to messaging apps that stop downloading media. We'll look at proven action algorithms that will help restore the device to its former sharpness. Regular maintenance of the file system is the key to the long service of your smartphone, especially for models of the past.
Storage occupancy analysis and search for hidden files
Before you start deleting data, you need to know exactly what is taking up space in your Redmi 7 memory. The standard storage analyzer in MIUI provides a convenient visualization that shows the distribution of space between applications, images, videos and system files. Often users are surprised to find that a significant part of the volume is not occupied by personal photos, but by the cache of messengers like Telegram or WhatsApp.
For detailed analysis, it is recommended to use the built-in Cleanup tool or third-party file managers, such as Files by Google or Total Commander. These ilkets allow you to see the structure of folders and identify heavyweights that are hidden from ordinary view. Android/data It often contains a cache of games and streaming services, which can grow to several gigabytes.
It's important to look at the Download folder, where browsers and messengers default to save all the files they receive, and many users don't look in there for months, unaware that they contain APK installation files, old documents, and duplicate images that are no longer needed.
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Visual analysis of storage is the first and most important step, as it allows you to point-delete large files, rather than act randomly.
Using the built-in “Security” application and cleaning the cache
The easiest and safest way to start vacating space is to use the regular Security app, which is preinstalled on all Xiaomi smartphones.This system tool is deeply integrated into the MIUI shell and has the rights to remove system debris that is not visible to the user when you normally view the file system.
However, automatic cleaning is often superficial. For deeper processing, you need to go to the Cleanup section and carefully study the categories. Particular attention should be paid to the Application Cache section, where you can selectively delete data for specific programs. Cache is temporary data that speeds up applications, but deleting it is safe and often solves problems with software freezes.
Also, remember Deep Clean, which looks for large files, rarely used apps, and duplicate photos. The algorithm suggests removing packets larger than 100MB, allowing you to quickly free up significant amounts of memory.
☑️ Daily Memory Hygiene
The system application also allows you to control the autoload of applications, which indirectly affects memory, preventing the accumulation of temporary data by background processes. Disabling unnecessary services in the “Permissions” and “Out-Run” section will help keep RAM free.
Working with multimedia: photos, videos and cloud services
Multimedia files traditionally take up the lion’s share of memory on a smartphone, especially if you’re actively using a Redmi 7 camera. High-resolution photos and FullHD video quickly eat up the available space. The optimal solution is to set up automatic sync with cloud services such as Google Photos or Xiaomi Cloud. Once successfully downloaded, the originals can be removed from the device, leaving only compressed previews.
The MIUI Gallery has a handy Album feature that automatically groups screenshots, selfies and videos. Go through these albums and delete the serial shots where only one shot was successful. It's also worth checking out "Recently Deleted" because the files are stored there for 30 days and continue to occupy space until they are finally deleted.
- 📸 Use the Compression mode in the camera settings to reduce the size of the photo without severe quality loss.
- ☁️ Configure the “Free Space” feature in Google Photos to automatically delete local copies.
- 🎥 Check the folder regularly DCIM/.thumbnails, where the thumbnails are stored and clean it through the file manager.
- 🗑️ Remember to clean the Recycle Bin in the Gallery and File Manager after deleting large amounts of data.
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Move the archive of old photos and videos to your computer or external hard drive to make room on your smartphone for current needs.
Removing applications and working with system debris
Over time, a smartphone accumulates a lot of apps that you haven't used in a long time. MIUI has a handy app management tool that lets you sort them by size or date of last use. Removing heavy games and social media that you haven't opened in months is the fastest way to get gigabytes of free space.
However, simply removing them from the desktop is sometimes not enough. Many applications leave behind folders with data, logs and settings in the root directory or Android/obb folder. Deleting them will require a file manager with access to system folders. Be extremely careful: deleting system files can lead to unstable work Redmi 7.
⚠️ Warning: Never delete files from system folders unless you are 100% sure of their purpose.Error can lead to a "bootloop" (cyclic reboot) or data loss.
Also worth considering are the “Lite versions” of popular apps (like Facebook Lite, Messenger Lite) that take up significantly less space and consume less resources, especially for devices with limited internal memory.
| Type of data | Location. | Security of removal | Recommended method |
|---|---|---|---|
| Cash app. | Settings → Applications | Safe. | Clearing the cache |
| Downloads (Downloads) | File manager | Safe (check) | Manual removal |
| Thumbnails folder | DCIM/.thumbnails | Safe. | Purification through a conductor |
| System Logs | MIUI/log | Safe. | Cleaning through "Safety" |
Cleaning messengers: WhatsApp, Telegram and Viber
Messengers are the main memory eaters on modern smartphones. WhatsApp and Telegram automatically store all received images, videos and voice messages in the memory of the device. Over time, these folders can grow to 5-10 GB or more. Each of these applications has built-in tools for managing storage.
In Telegram, you can configure automatic cache deletion: go to Settings → Data and memory → Memory use and set a cache limit, such as 512 MB or 1 GB. The app will automatically delete old files, freeing up space. For WhatsApp, a similar feature is in Settings → Data and Storage → Storage Management, where you can delete files larger than 5 MB or view the heaviest chats.
Don't forget to also disable auto-save in the gallery for all messengers, which will prevent duplicate files: they will be stored inside the application, but will not take up space in the general gallery of the phone.
The secret WhatsApp folder
Radical measures: Resetting to factory settings
If none of the above methods has helped free up enough space, or if the system is unstable due to file fragmentation, the last resort is a full reset to factory settings (Hard Reset), which completely removes all user data, applications and settings, returning the Redmi 7 to the “out of the box” state.
Before you reset, it is critical to back up all your important data, you can use Mi Cloud, Google Drive, or local copying to your computer, and make sure that your battery is at least 50% so that your phone doesn't turn off during the reset process, which can damage the software part.
To perform the reset, go to Settings → About Phone → Settings Reset → Erase all data. The system will request confirmation and unlock password. Once you reboot, you will get a clean system with maximum free memory. It is also a great way to get rid of hidden viruses or bugs that have accumulated over the years of use.
⚠️ Warning: After the reset, all data will be permanently lost, make sure you save contacts, photos and documents to an external medium or in the cloud before starting the procedure.
After restoring the system from the backup, it is recommended not to install all applications at once, install only the necessary programs to keep the speed and space for many months ahead.