How to completely disable the internal memory card on the phone Xiaomi Redmi: 5 proven ways

Xiaomi Redmi’s internal memory isn’t just a file storage, it’s a key component integrated into the firmware-level system. Many users face a situation where they need to disable or isolate the internal memory — whether it’s to test external drives, solve partition problems, or prepare the device for sale. However, standard MIUI settings don’t provide a direct “disable” memory function like some other Android devices do.

In this article, we will discuss 5 working methods, from software solutions to technical tricks, that will allow you to deactivate the internal drive on the Redmi Note 10/11/12, Redmi 9/10/11 and other models. It is important to understand that a complete shutdown of memory will lead to the inability to boot the system without external media, so the methods range from soft insulation to radical measures. We will also analyze the risks of each approach and offer alternatives for typical use scenarios.

Why do you need to shut down your internal memory?

At first glance, the idea of deactivating the built-in drive seems counterintuitive — why deprive the smartphone of its primary storage?

• 🔧 External testing SSD/USB-storage as the primary storage unit (for example, through OTG-This is true for enthusiasts who want to use Redmi as a mini PC with extended memory.
• 🛠️ Diagnostics of hardware failures: if internal memory is damaged (bad blocks, reading errors), disabling it will help check the health of other components.
• 📦 Preparing for sale with full data zeroing, when you want to ensure that new files will not be written to the old drive.
• 🔒 Security: Memory isolation to protect sensitive data (e.g. when handing over a phone for repairs).

Note that on Xiaomi Redmi with MIUI firmware, internal memory (/data) is tightly tied to the system, and completely shutting it down without an alternative media will result in a device “brick” (inoperable state), so most of the methods below involve partial deactivation or redirection of operations to external media.

⚠️ Note: Disabling internal memory on Redmi with active link to the Mi Account may block access to the device after rebooting. → Xiaomi account → Get out.

Method 1: Formatting internal memory with Recovery Mode

The most radical, but also the most reliable way to shut down internal memory is to format it completely, which will delete all data, including firmware, so the method is only suitable if you have custom Recovery (like TWRP) and a backup of the system.

Step-by-step:

1. Turn off the phone, then press the Power button + Volume up to enter Recovery Mode.
2. From the TWRP menu, select Wipe → Advanced Wipe.
3. Check the Data and Internal Storage sections (do not touch the System unless you plan to re-flash!).
4. Swipe to Wipe (Swipe to Wipe)
5. After formatting, restart to Recovery and restore the system from the backup (if any).

This method does not physically shut down memory, but only erases all data, making it unreadable without flashing it over.

Method 2: Redirecting the storage to an external location SD-Map (Adoptable Storage)

If your goal is to use external memory as your primary memory, rather than disabling internal memory, then Adoptable Storage (built into Android) may be the solution. SD-card as the main drive for installing applications.

How to set up:

1. Put it in. SD-map (class recommended) UHS-I/U3 higher).
2. Go to Settings. → Memory. → [Yours. SD-map] → Three dots (menu) → Storage settings.
3. Choose Internal Memory (or Format as Internal in English).
4. Confirm the formatting (all data on the map will be deleted!).
5. After restarting, the system will offer to transfer application data to SD-map.

Limitations of the method:

• ❌ It does not work on all Redmi models (depending on version) MIUI and Android kernels).
• ❌ SD-The card will be encrypted and will not be read on other devices.
• ❌ Speed is lower than that of internal memory (especially on cheap cards).

Method 3: Disable partition mounting /data via ADB

For advanced users willing to work with ADB, there is a way to temporarily “hide” internal memory from the system, a method that doesn’t delete data, but makes it inaccessible to Android, which can be useful for testing.

Instructions:

1. Activate USB Debugging in Settings → About Phone → MIUI Version (click 7 times) → Additional settings → For developers.
2. Connect your phone to your PC and execute in the terminal: adb shell su mount -o remount,rw / echo "# Disable internal storage" >> /system/etc/fstab.qcom echo "/dev/block/bootdevice/by-name/userdata /data ext4 noauto" >> /system/etc/fstab.qcom reboot
3. After the reboot, the /data partition will not be automatically mounted.

⚠️ Warning: This method requires root rights and can lead to a cyclical reboot if the system does not find an alternative storage. TWRP.

Method 4: Physically shutting down the memory chip (for advanced ones)

If software methods are not suitable, the last resort is to physically shut down the memory chip by overheating or unpolding the contacts, which irreversibly damages the device and should only be used in cases where:

• 🔨 Testing repair skills on a “donor” phone.
• 🧪 Experiments with hardware modification (for example, connecting external memory via an eMMC connector).
• 🗑️ Disposal of a device with guaranteed data destruction.

How to do this:

1. Take the phone apart, find a memory chip (usually labeled as eMMC or UFS on the motherboard).
2. Use a soldering station with a temperature of 300-350 ° C to gently solder off the chip or burn down the power tracks.
3. Check that the system does not react to the PC connection (should be defined as a memoryless device).

⚠️ Warning: This method violates warranty and can lead to fire if soldering equipment is mishandled. BGA (For example, the Redmi Note 11 Pro+) High risk of damage to neighboring components.

💡

Before you physically shut down your memory, take a picture of the location of the chip and adjacent elements. This will help with reverse assembly or repair. Use a magnifying glass or microscope for accuracy - on Xiaomi boards, components are often very densely placed.

Method 5: Alternatively, creating an encrypted container

If your goal is to isolate the data, rather than shutting down the memory entirely, consider creating an encrypted partition that will allow you to hide some of the internal memory from the system without physically shutting it down.

Instructions for MIUI:

1. Install an encryption application like Cryptomator or VeraCrypt (root required to work properly).
2. Create an encrypted container in the /sdcard folder (e.g. secure.vault).
3. Transfer sensitive data to the container and mount it only when necessary.
4. For automatic mounting when downloading, use Tasker or scripts in init.d.

Advantages of the method:

• ✅ No risk of damage to the system.
• ✅ The data remains available after entering the password.
• ✅ Works without root on some firmware (with limitations).

💡

Encryption is the safest way to disable data access without physical interference, but remember that on MIUI with active Mi Account binding, even encrypted data can be recovered through Xiaomi service centers.

Frequent Mistakes and How to Avoid Them

When working with internal memory Xiaomi Redmi users often face typical problems, here are the most common of them and how to solve them:

• 🔄 "Phone gets stuck on booting after changes to fstab" → Restore the original file through TWRP or re-flash the device.
• 🔌 "SD-The card is not defined as an internal memory" → Check the format (should be) ext4 or f2fs) and speed class (minimum) UHS-I).
• 🔐 "After formatting via Recovery, the phone requires a password" → It's a consequence of encryption. MIUI. The solution is to reset the settings via fastboot: fastboot erase userdata fastboot erase metadata
• 📱 "I can't log in to Recovery after I shut down my memory" → Use fastboot boot twrp.img Temporary download of custom Recovery.

If you encounter an error not described above, check logs via adb logcat or refer to the XDA Developers forums (specify the phone model and MIUI version).

FAQ: Answers to popular questions