How to turn off internal memory on Xiaomi phone: safe methods and warnings

Xiaomi’s internal memory isn’t just a file storage system, it’s a complex system integrated into the MIUI operating system. Many users want to turn it off for a variety of reasons, from wanting to use only an external microSD card to trying to save battery power or solve problems with the device hanging. However, turning off the internal drive on most Xiaomi models (including Redmi Note 10/11/12, POCO X3/X4, Mi 11/12) is technically impossible without root rights or major firmware modifications.

In this article, we will discuss:

• 🔍 Why? MIUI It does not allow you to disable internal memory out of the box and what restrictions the system imposes.
• 🛠️ Alternative ways to reduce the load on the drive (data transfer, cache cleaning, disabling unnecessary processes).
• ⚠️ Risks and consequences of forced disconnection ADB custom-made.
• 📱 Step-by-step instructions for specific scenarios (e.g., using an external map as the primary storage facility).

If you're looking for a way to completely shut down internal memory, you probably need to rethink the way you do it, but if the goal is to optimize it or redirect it to another medium, our recommendations will help you do it safely.

Why you can’t just turn off internal memory on Xiaomi

Unlike external microSD cards, internal memory (eMMC or UFS) in Xiaomi smartphones is tightly linked to:

• 📱 Operational system (MIUI Stores system files, cache, application data).
• 🔄 Background synchronization processes (updates, backups, cloud services).
• 🔋 Energy management (the system uses memory to optimize processor performance).

Even if you format the /data partition via Recovery, the phone will simply reboot in setup mode as new – the system will automatically restore critical partitions. Physical shutdown (for example, by removing drivers in the kernel) will result in a device “brick” – it will stop booting.

⚠️ Attention: In forums, there are often tips to disable internal memory through ADB Pm Disable-user --user 0 Android or editing a fstab file. These methods don't work on modern versions. MIUI 12/13/14 and may result in loss of warranty or failure of the device.

The only legal way to turn off internal memory is to:

1. Reassign the external microSD card as internal storage (with formatting).
2. Use cloud services (Mi Cloud, Google Drive) to store data.
3. Limit the recording to the internal drive through the application settings.

How to transfer data to an external microSD card

If the goal is to reduce the load on internal memory, the safest way is to set up the external card as the primary storage.

Insert the card into the slot (hybrid or dedicated)

Check if the card is formatted in exFAT or FAT32

Make a backup of the data from the card (they will be deleted!)

The battery should be at least 50% charged.

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Follow the instructions:

1. Go to Settings → Memory → External drive.
2. Click on your microSD card and select “Configure as internal memory.”
3. Confirm the formatting (all data will be erased!).
4. After the restart, the phone will offer to transfer the application data to the map.

Importantly, after this procedure, the card will be encrypted and not read on other devices, and to return it to its original state, you will need to format it completely through the computer.

⚠️ Attention: On models with UFS 3.1 (Mi 11 Ultra, Black Shark 4) Transferring applications to a microSD can cause lags. read/write card speed (Class) 10/UHS-I) should be no lower 90 MB/s.

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Before transferring data to the map, check its speed using the A1 SD Bench application. If the write speed is below 20 MB / s, the applications will slow down.

Cleaning internal memory without disconnecting

If your internal memory is full and your external card is not, try these methods:

• 🧹 Cache Clearing: Go to Settings → Memory. → Clear the cache. This will delete temporary files without losing data.
• 🗑️ Remove unnecessary files: Use the built-in “Cleanup” app → Cleaner) for garbage retrieval.
• 📱 Media Transfer: Photos and videos can be transferred to Google Photos (with the option “Free space” enabled»).
• 🔄 Disable Auto Updates: In Play Market, Turn Off Settings → Auto-update of applications.

For deep cleaning:

1. Start Developer Mode (7 times click on the MIUI version in Settings → About Phone).
2. Enable Do Not Save Actions (Settings → Additional → Developers) This will limit the background log entry.
3. Disable Mi Cloud Sync for unnecessary data (Settings → Xiaomi Account → Mi Cloud).

The average volume that can be released by these methods is from 1 to 5 GB, depending on the model and time of use.

Disable internal memory records via ADB (for advanced)

If you're ready to work with Android Debug Bridge (ADB), you can limit the app's access to internal memory, which doesn't shut down the memory completely, but reduces the use of it.

Procedure:

1. Install ADB on your computer (download Platform Tools).
2. Turn on USB Debugging on your phone (Settings → About Phone → MIUI Version → 7 times Press → Return to Additional → For Developers).
3. Connect your phone to your PC and execute the commands: adb devices adb shell pm revoke com.android.providers.media READ_EXTERNAL_STORAGE adb shell pm revoke com.android.providers.media WRITE_EXTERNAL_STORAGE

These teams are revoking the storage rights of the system media provider, and as a result:

• ✅ Applications will not automatically save files to the gallery.
• ❌ Some functions will stop working (for example, downloading files in the browser).
• 🔄 To return access, do: adb shell pm grant com.android.providers.media READ_EXTERNAL_STORAGE adb shell pm grant com.android.providers.media WRITE_EXTERNAL_STORAGE

⚠️ Attention: MIUI 14 of these commands may not work properly due to changes in permissions policy.

What happens if you physically remove the memory chip?

Some service centers suggest "disabling" internal memory by flashing to remove the /data partition or even physically unpolding the eMMC/UFS chip from the motherboard.

The only scenario where such intervention is justified is repairing if the memory chip is damaged (for example, after a fall or moisture). eMMC/UFS new, but:

• 💰 The cost of repairs often exceeds the price of the phone (from 5,000 to 15,000). ₽).
• 🔧 Requires a soldering station and experience with BGA-chip.
• 📱 Xiaomi’s warranty will be cancelled.

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Physically shutting down internal memory is not an optimization, it's a repair procedure, which makes no sense to ordinary users and leads to the loss of the device.

Alternatives: How to reduce memory burden without risk

Instead of trying to shut down internal memory, consider these safe ways to do so:

• 📁 Use "Light Mode": In Settings → Special facilities → Easy mode turns off background processes, saving space.
• ☁️ Set up automatic upload to the cloud: In Google Photos, turn on “Backup and Sync».
• 🎮 Limit Games: Transfer heavy games (Genshin Impact, Call of Duty) to a microSD card or remove them.
• 🔄 Disable Duplicate Services: For example, if you use Google Contacts, disable Contact Sync in Mi Cloud.

For models with MIUI 13/14, the Memory Extension feature (Settings → Memory → Memory Extension) is available, which allows you to use part of RAM (RAM) as additional storage (up to 3 GB), this will not replace internal memory, but will help with multitasking.

If the problem is “hangs” due to lack of memory, try:

1. Disable animation: In developer mode, set Windows animation = 0.5x.
2. Limit background processes: Settings → Applications → Limit background activity.
3. Use Lite versions of applications (Facebook Lite, Messenger Lite).

FAQ: Frequent questions about Xiaomi’s memory shutdown