Xiaomi Memory is Full: What to Do When Your Phone Says “Not Enough Space”

You open a gallery to take a photo, but suddenly a notification appears: “Memory is full.” Apps start to slow down, updates are not installed, and the system suggests removing “unnecessary files” – but which ones? Every second owner of Xiaomi, Redmi or POCO smartphones faces this problem, especially if the device is equipped with modest 32-64 GB of internal memory. Unlike flagships with 256 GB and memory card slots, budget models are quickly clogged with system debris, cache and duplicates.

In this article, we’ll look at 10 proven ways to free up memory on Xiaomi, from basic (delete unnecessary files) to advanced (clean system partitions via ADB). You’ll learn why even after removing photos, the space is not vacant, how to find and delete hidden MIUI files, and what to do if the phone writes “Not enough space”, although the memory is supposedly free. All instructions are relevant for MIUI 14/15 and work on models from Redmi Note 10 to Xiaomi 14 Ultra.

Why is Xiaomi’s memory filling up so quickly?

Xiaomi smartphones are known for their “gluttony” to internal memory – and the fault is not only user files, but also features of the MIUI firmware.

• 📱 System section /data blown: MIUI reserve 5–8 GB for updates, logs and temporary files that are not visible in the standard manager.
• 🗑️ App cache: Social networks (TikTok, Instagram) and instant messengers (Telegram, WhatsApp) can take up 1-3 GB of cache each.
• 🔄 Duplicates and residual files: After deleting applications or updates, “tails” remain in folders /Android/obb and /Android/data.
• 📸 High-resolution photo and video: One RAW-Xiaomi 13 Pro photo weighs up to 50 MB and video in the video 4K — up to 400 MB/min.
• 🔒 Hidden files MIUI: Logs of error (/data/log), Backups of settings and thematic files (.mtz).

The problem is particularly severe on devices with eMMC memory (instead of UFS), where the write speed drops when more than 80% of the drive is filled, leading to lags and freezes even with 1-2 GB of free space.

Method 1: Cleaning up garbage through built-in MIUI tools

To start with, the standard MIUI tools are root-free and work on all models, including the Redmi 9A and POCO X5 Pro.

1. Open “Security” (the shield icon in the app menu).
2. Go to the Cleanup section. → Deep cleaning.
3. Click Scan and wait for analysis: 🗑️ Application cache 📁 Unnecessary APK-files (remains after installation) 📄 Log files (.log)

Clean up

⚠️ Note: Do not manually delete files from the folder /Android/obb — This can break games (like Genshin Impact or Call of Duty Mobile.

Method 2: Removal of cache and application data

Cache is the main memory eater, for example, Facebook can accumulate up to 2 GB of cache per month, and Google Play Services can accumulate up to 1 GB. It needs to be cleaned selectively so as not to break the application.

Instructions:

1. Go to Settings → Applications → Application Management.
2. Sort the list by size (click on the three dots in the upper right corner).
3. Select an app (such as Instagram) → Storage.
4. Click Clear cache. If you want to reset, select Clear data (⚠️ This will delete accounts and settings!).

🔹 Top.-5 «Eating Apps on Xiaomi:

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To make the cache accumulate more slowly, in the settings of applications (for example, Instagram), turn off the option “Preload video” and reduce the quality of media.

Method 3: Transfer files to a memory card or cloud

If your Xiaomi supports memory cards (like the Redmi Note 12 Pro+), transfer media and documents to it. Importantly, not all applications can be migrated to SD, this is a limitation of Android.

How to transfer files to a memory card:

1. Insert the card (UHS-I Class 10 is recommended for speed).
2. Open Files (application from Mi).
3. Select a folder (e.g. DCIM/Camera) → click on three dots → Select all → Move.
4. Specify the target folder on SD-map (e.g., map, /storage/XXXX-XXXX/DCIM).

Method 4: Removing System Garbage Through ADB (For Advanced)

If the standard methods don't work, and the memory is still full, it's time to dig deeper. MIUI They can take up to 3 to 5 GB, but you can't see them in the conductor. ADB (Android Debug Bridge).

Step-by-step:

1. Download ADB Tools for Windows/Mac.
2. Turn on Developer Mode on your phone: Settings → About Phone → MIUI version (click 7 times).
3. Activate Debugging by USB in Settings → Additional → For developers.
4. Connect your phone to your PC and execute commands in cmd:

adb shell


pm clear com.miui.cleanmaster # Cleaning MIUI Cleaner




rm -rf /data/log/* # Delete logs (requires root)




rm -rf /data/local/tmp/* # Temporary files

⚠️ Attention: Rm teams -rf If you're incorrect, you can damage the system, you can only use it if you're confident in your actions, and if you don't have root rights, some of the commands won't work.

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ADB-Cleaning is effective for removing system debris, but requires caution. If you are not sure, use safe methods (1-3).

Method 5: Reset to factory settings (extreme case)

If no method works and the memory is still full, it will be hard reset, which will delete all data, including photos, messages and apps, but will return the phone to its "clean" state.

How to reset:

1. Back up important files (via Mi Cloud or PC).
2. Go to Settings → About the phone → Reset settings.
3. Choose to erase all data and confirm.
4. After the reboot, the phone will look like new.

🔹 What will remain after the discharge:

• ✅ Files on a memory card (if not encrypted).
• ✅ Data in the Mi Account (contacts, notes).

🔹 That's gone:

• ❌ All applications and their data.
• ❌ Photo/video in internal memory.
• ❌ Messages in messengers.

Method 6: Optimize memory to prevent filling

To prevent the problem from recurring, set your phone to auto-optimize:

• 📱 Limit the cache for applications: In Settings → Annexes → Manage applications for each application set a cache limit (if there is such an option).
• 📸 Change the camera resolution: In the camera → Settings → Photo resolution select 12 MP instead of MP 48/108 MPP.
• 🔄 Turn off auto-update apps: In Google Play → Settings → Auto Update: Select Only via Wi-Fi or Do not update automatically.
• 🗑️ Set up automatic cleaning: In safety → Cleanup → Settings enable Auto Cleanup when blocking.

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Check the Download folder regularly, where unnecessary APKs, PDFs and archives accumulate. Delete anything older than 3 months.

Frequent Mistakes and Myths About Xiaomi Memory

The Internet is full of advice that not only doesn't help, but it hurts.

⚠️ Note: Don’t use apps like Clean Master or CCleaner – they often delete important files and show false “threats” to sell the premium version.

🔹 Myth 1: “Forming a memory card will speed up the phone»

Reality: Formatting deletes files but does not affect the speed of eMMC/UFS. If the card is slow (e.g. Class 4), replacing it with Class 10 will have a greater effect.

🔹 Myth 2: “Deleting apps frees up memory completely»

Reality: After uninstallation, files in /Android/data and /Android/obb remain. They must be manually deleted through Files or MIUI Cleaner.

🔹 Myth 3: Root will help to free the memory»

Reality: Root gives access to system folders, but doing the wrong thing can make the phone down, such as deleting files from /system will result in a "brick."

FAQ: Answers to Frequent Questions