How to Free Memory on Xiaomi If There’s Nothing to Delete: Hidden Techniques

Your Xiaomi is again showing the notification "Not enough memory", but there is nothing extra in the list of applications? The situation is familiar to many owners of smartphones on MIUI - even after removing all unnecessary files and programs, free space is melting before our eyes. What is the reason and how to solve the problem without radical measures?

The fact is that Xiaomi’s operating system and system processes are heavily using cache, temporary files and backups that are not always visible to the user, and MIUI automatically reserves up to 5-10% of memory for your needs, even if you haven’t installed anything new. In this article, we’ll discuss 15 proven ways to free up memory on Redmi, POCO or Mi when it seems that there is nothing to delete.

We won’t recommend the trivial things like “delete photos” or “transfer files to a memory card,” instead focusing on the hidden MIUI mechanisms that eat gigabytes unnoticed: from cleaning Dalvik-cache to disabling duplicate Xiaomi Cloud services. All methods are tested on current versions of MIUI 14/15 and are suitable for models from Redmi Note 10 to Xiaomi 14 Ultra.

1. Deeply clean the MIUI cache through a hidden menu

The most effective way to free up 1-3GB of memory is to clear the system cache that MIUI doesn't show in standard settings.

• 📱 Dalvik-cache – optimized files for fast application downloads (can weigh up to 1 GB)
• 🗃️ ART-cache - temporary data of the Android virtual machine
• 🔄 Update cache – firmware files that the system downloaded but did not install

To clean it up:

1. Open the phone app and enter the combination: ##4636##
2. Select the Storage item.
3. Click Cache Cleanup and confirm the action.

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If ##4636## doesn’t work, try typing it through the Calculator app – sometimes MIUI blocks the engineering menu in the standard set.

⚠️ Warning: After this procedure, the first launches of applications may be slower than usual - the system will recover the cache again. Do not repeat the clean more than 1 time per month, otherwise this will negatively affect performance.

2. disable duplicate services Xiaomi Cloud

Xiaomi Cloud syncs contacts, notes, photos, and even SMS by default — often duplicating data already backed up in Google Accounts, which can take up to 500MB-1GB of hidden memory.

How to turn off unnecessary synchronization:

1. Go to Settings → Xiaomi Account → Mi Cloud.
2. Turn off synchronization for: 📇 Contacts (if you use Google Contacts) 📝 Notes (if you do not use Mi Notes) 📷 Gallery (if photos are already in Google Photos) 💬 SMS (If you don’t need a history of messages in the cloud)

Clean up cloud data

Once disabled, check the /miui/backup/AllBackup folder through any file manager (such as Mi File Explorer) – there may be old backups weighing hundreds of megabytes.

3. Removal of systemic APK-Files (for advanced users)

MIUI pre-installes dozens of applications that cannot be removed in standard ways.

• 🎵 Mi Music (weighs) ~100MB)
• 📺 Mi Video (~150 MB)
• 📊 Mi Browser (~80MB)
• 🎮 Game Turbo (~200 MB)

To remove them without root rights, you will need ADB (Android Debug Bridge).

1. Enable USB Debugging in Settings → About Phone → MIUI version (click 7 times, then go back to Additional Settings → For Developers).
2. Connect your phone to your PC and type in the command line: adb shell pm uninstall -k --user 0 com.miui.videoplayer (replace com.miui.videoplayer with the desired application package).

🔹 List of deletion packages:

⚠️ Attention: Removal of system APK This can cause the firmware to work unstable. Before the procedure, back up through Settings. → Additionally. → Backup. Don't delete packages called miui.system, android, or google, which are critical components!

4. Clean Download folder and temporary files

The Download folder often becomes a memory black hole.

• 📄 PDF-messenger
• 🎬 Video from TikTok/Instagram
• 📦 Archives (ZIP, RAR) after installing applications
• 📎 Investments from Telegram/WhatsApp

How to clean it up:

1. Open Mi File Explorer (or any other file manager)
2. Go to the Inner Memory → Download.
3. Sort files by date of change and delete anything older than 3 months.
4. Pay attention to files with extensions:.apk – outdated installers of.tmp applications – temporary.crdownload files – underquality files from Chrome

Also check the folders:

• 📁 /Android/data/ — This is where the games and applications are stored (for example, PUBG Mobile or Facebook can be used by 1-2 GB).
• 📁 /DCIM/.thumbnails — Photo and video miniatures (can be removed without consequences).

5. MIUI Optimization: Disabling Unnecessary Functions

MIUI contains many background processes that constantly write data into memory, and by disabling them, you can save up to 500 MB-1 GB:

What can be safely disabled:

• 🔍 Application search (Settings) → Home screen → App search – indexes all files on the device.
• 📡 Auto-update MIUI (Settings → The phone. → Updating the system → ⚙️ → Downloading).
• 🎯 Personalized recommendations (Settings) → Confidentiality → Advertising → Personalized advertising).
• 📊 Diagnostics MIUI (Settings → The phone. → Reviews and diagnostics – collects system logs.

It is also useful to turn off automatic recording of conversations (if not used):

1. Open the Phone app.
2. Press. ⋮ → Settings → Recording of conversations.
3. Turn off the Auto Record option.

These records can take hundreds of megabytes, especially if you make frequent calls. Files are stored in the /Recordings/Call folder.

6.Using Hidden MIUI Functions for Cleaning

MIUI has built-in tools that are rarely mentioned in official instructions, but do a great job of cleaning:

1. Cleaning of "Junk Files" through Security:

1. Open the Security app (Security).
2. Press Cleaner.
3. Select Deep Clean and wait for analysis.
4. Delete all items except Logs – it is not recommended to touch them.

2. Reset application cache without deleting data:

If an app is bloated (for example, Facebook or Instagram takes 1+GB), you can reset your cache without losing your account:

1. Go to Settings → Applications → Application Management.
2. Select the app you want (such as WhatsApp).
3. Press Warehouse. → Clear the cache.

3. optimization of the MIUI database:

This feature rearranges system indexes, which can free up to 300-500 MB:

1. Enter the phone code in the app: ##36446337##
2. Select Optimize Database (Database Optimization).
3. Wait until the process is complete (the phone can restart).

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Regularly optimizing the MIUI database not only frees up memory, but also speeds up the interface, especially on devices with 64–128GB of storage.

7. Transfer applications to a memory card (if supported)

Many Xiaomi models (e.g. Redmi Note 11 or Xiaomi) POCO X3) Supports the transfer of applications SD-This is a map, but it's often hidden. Here's how to activate it:

Conditions:

• 📱 The phone should support Adoptable Storage (check the model specifications).
• 💾 The memory card must be of class 10 (UHS-I) higher.
• ⚠️ Once formatted as internal memory, the card cannot be used in other devices without being cleaned.

Instructions:

1. Put it in. SD-phone-card.
2. Go to Settings → Storage → SD card.
3. Choose Format as Internal (Format as Internal).
4. After formatting, go to Settings → Applications, select the desired application and click Storage → Change → SD Card.

⚠️ Note: Not all applications support portability SD. For example, WhatsApp or Google Play Services will remain in internal memory, and the performance of applications on the memory card may be lower, especially if the card is slow.

8. Alternative methods: from root to dumping

If all of the above methods have not worked, then radical measures remain.

If you decide to reset your settings, do the following:

1. Save all important data (photos, contacts, messages) on your PC or in the cloud.
2. Go to Settings → About the phone → Reset settings.
3. Choose to erase all data.
4. After reset, don't restore the MIUI backup - it may contain the same junk files. Install applications selectively.

If memory problems occur regularly, it may be worth considering:

• 🔧 Replace internal memory (for models with a jack chip, for example, Redmi Note 9 Pro).
• 📱 Buying a phone with a large amount of storage (128 GB instead of 64 GB).

FAQ: Frequent questions about memory on Xiaomi