Where does memory go on Xiaomi Redmi? Full parsing + cleaning methods

Have you noticed that your Xiaomi Redmi suddenly ran out of space even though you didn't download anything? Or your smartphone writes "Memory is full" even though there are only a couple of photos in the gallery? This problem is familiar to many owners of Redmi devices - from the budget Redmi 9A to the flagship Redmi K60. The reasons can lie both in the system features of MIUI and in hidden files that users rarely check.

In this article, we will not just list the standard tips like “remove cache”, but will discuss 7 real reasons why memory on Xiaomi Redmi “evaporates” on its own, you will learn how to find and delete unnecessary files, what MIUI settings eat gigabytes, and what to do if even after cleaning the space does not vacate, and at the end, FAQ with answers to the most common questions on this topic.

1. App cache: why it takes up to 10GB and how to clean it properly

The most obvious but often underestimated reason is app cache. At Xiaomi Redmi, it can take anywhere from 1-2 GB to 10+ GB if it’s never cleared. Especially voracious social networks (TikTok, Instagram), instant messengers (Telegram, WhatsApp) and games. For example, PUBG Mobile or Genshin Impact cache easily “bloats” to 5-7 GB in a couple of months of active use.

However, simply clicking Clear Cache in your settings is not always the solution, because some applications (like Google Play Services or MIUI System) recover the cache almost immediately after cleaning, to avoid this:

• 📱 Clean the cache selectively: go to Settings → Annexes → Application management, sort by size and remove cache only from the heaviest programs.
• 🔄 Use the built-in utility: in MIUI There is a Cleanup tool (brush icon in the menu) that deletes unnecessary files automatically.
• ⚙️ Turn off automatic cache recovery: for this purpose in Settings → Additionally. → Special facilities → For developers, turn off the option to Do Not Save Actions (if it is active).

⚠️ Note: Do not clear the cache of system applications like com.android.systemui or com.miui.home – this can cause shell malfunctions. MIUI.

2 Hidden MIUI Files: Where to Look and How to Delete

MIUI creates many hidden folders and files that users don't even know about.

• 📁 folder MIUI in the root directory – stores log files, temporary update data and backups of settings (can weigh up to 1-3 GB).
• 📁 folder DCIM/.thumbnails — Photo and video miniatures that are not deleted when cleaning the gallery.
• 📁 folder Android/obb — Game and app data that is not always deleted when uninstallation.

To find and delete these files:

1. Connect your smartphone to your PC via USB (in file transfer mode).
2. Enable the display of hidden files in Windows Explorer (View → Hidden Items).
3. Check the MIUI,.thumbnails, obb, and cache folders for unnecessary data.

Important: Don't delete the MIUI/backup folder completely, because it can store backups of SMS and contacts, go to it and manually check the contents.

3 System Updates: Why They Eat Memory and How to Fix It

Xiaomi regularly releases updates for MIUI, but few people know that each update takes place twice:

1. Downloaded update file (usually 1.5-3 GB).
2. A backup of the old version of the system (another 1-2 GB), which MIUI creates in case of a rollback.

To make room:

1. Remove downloaded but not installed updates: Settings → About Phone → System Update → Three dots (menu) → Delete the downloaded package.
2. Clean up old firmware backups: Settings → Additional → Backup and Reset → Delete backup data.

⚠️ Note: If you delete the backup copy of the firmware, you will not be able to roll back to the previous version. MIUI free-to-reset.

4.Duplicate files: how to find and delete unnecessary copies

MIUI has a nasty feature: when you transfer files (for example, from a memory card to internal memory) or backup, it often creates duplicates, especially when you are:

• 📸 Photos (copies in folders) DCIM/Camera and Pictures/Screenshots).
• 🎵 Music (files can be duplicated in Music and Download).
• 📄 Documents (e.g., documents, PDF-Files from Telegram and WhatsApp are saved in the download folder and in the application folder).

To find duplicates:

1. Use the built-in Cleanup → Duplicate File Tool (available in MIUI 12 and later).
2. Install third-party apps like Files by Google or CCleaner – they can search for duplicates by content, not just by name.

💡

Before removing duplicates, sort files by date of change so you can see which copies are the oldest and most likely unnecessary.

5. Memory-eating apps: top-5 «culprits

Some apps take up a lot of space not so much by themselves as because of their data.-5 «Unexpected memory eaters on Xiaomi Redmi:

To check which apps take up the most space:

1. Go to Settings → Applications → Application Management.
2. Click on the three dots in the top right corner and select Sort by size.
3. Check out apps that are larger than 500MB – chances are their cache or data can be cleared.

💡

Even if you haven't used the app in a while, it can take up gigabytes because of the cache you've accumulated. Check the list of heavy programs regularly!

6 Viruses and Malware: How They Steal Memory

If the memory on Xiaomi Redmi disappears by itself, and you have not installed new applications, a possible cause is viruses or mining software.

• 🕵️ Download and store files in hidden folders (for example,.adcache or.system).
• 📊 Run background processes that create gigabyte-sized log files.
• 💰 Mining cryptocurrency using the memory of the device for storing the blockchain.

How to check and delete:

1. Install an antivirus (such as Malwarebytes or Dr.Web Light) and scan the device.
2. Check the list of running processes in Settings → Applications → Run – if there are unknown services (for example, com.android.system.update with high memory consumption), this is a reason to be wary.
3. Go to Settings → Battery → Battery Use and see which applications are using up in the background. Unknown high-consumption programs are potential viruses.

⚠️ Warning: If you find a suspicious app, don’t remove it directly – first disable its administrator rights (Settings) → Security → Administrators of the device, otherwise it can block access to settings.

7 File system errors: When memory "disappears" for no reason

Sometimes the memory on Xiaomi Redmi is lost due to file system errors.

• ⚡ Unexpected power outage during file recording.
• 🔌 Wrong extraction SD-Cards (if used as internal memory).
• 📱 Failed update MIUI.

Signs of a problem:

• The storage settings show that the memory is busy, but you can’t find large files.
• When connected to a PC, the smartphone is defined as empty, although the space is occupied.
• The file manager gives errors when opening folders.

How to fix it:

1. Restart your smartphone in Safe Mode (press the power button → long tap on Turn off → Reboot in Safe Mode) and check if there is still a problem.
2. If used SD-card as internal memory, extract it, format it on PC (in format) FAT32 or exFAT and insert back in.
3. Cache reset via Recovery: 1. Turn off your smartphone. 2. Press <power button> + <volume button> before the Mi. 3 logo appears. From the Recovery menu, select Wipe & Reset → Wipe Cache. 4. Reboot the device.

If nothing works, you only have to reset your settings completely (Settings → Additional → Resets) before you back up your important data, which will be deleted after the reset without any recovery.

FAQ: Answers to Frequent Questions