How to Use Xiaomi Memory Card as Internal Memory: The Complete Guide

Xiaomi smartphones with limited internal storage often face the problem of lack of space for applications and files, and one effective solution is to use a microSD card as an internal storage device, which allows you to expand the memory of the device without buying a new gadget, but has its own features and limitations.

Unlike standard file storage mode, where the memory card is used as a removable medium, formatting it as internal memory integrates the drive into the system, which means that applications can be installed directly on the microSD, and cache files and program data will be automatically stored there, but not all Xiaomi models support this feature, and the process itself requires careful attention.

What Xiaomi models support using microSD as internal memory

Adoptable Storage feature (accepting external drive as internal) appeared in Android 6.0 Marshmallow and is supported by most modern Xiaomi smartphones.

  • ๐Ÿ“ฑ Models on MIUI 12/13/14 Android 10+ โ€” Full support (e.g. Redmi Note) 10 Pro, POCO X3 Pro).
  • ๐Ÿ“ฑ Android 9 Pie and below devices โ€“ limited functionality (possible errors when installing apps).
  • ๐Ÿšซ Smartphones without a microSD slot (Xiaomi 12 Pro, 13 Ultra) โ€“ feature not available.

To see if your device supports this option, check if the card formatting menu has internal memory, and if it doesnโ€™t, the manufacturer has blocked the option.

๐Ÿ“Š What Xiaomi model do you use?
Redmi Note
POCO
Mi
Black Shark
other

Advantages and Disadvantages of Using MicroSD as Internal Memory

Before you format a map, it is important to evaluate all the pros and cons of this solution.

  • ๐Ÿ”„ The ability to install applications directly to the card (saves space in the internal memory).
  • ๐Ÿ“ˆ Increase the total storage volume for data and cache.
  • ๐Ÿ”„ Automatic transfer of system files to microSD.

However, there are also significant shortcomings:

  • โšก Reduced speed of applications (even with maps) UHS-I U3 speed is lower than that of the built-in memory).
  • ๐Ÿ”’ Inability to retrieve the card without resetting the settings (the system considers it as part of the device).
  • ๐Ÿ› ๏ธ Risk of data loss when card is damaged (internal memory is more reliable).

๐Ÿ’ก

If you often take pictures in RAW format or shoot video in 4K, it is better to leave the microSD as a removable medium - this will speed up recording and make it easier to transfer files to your PC.

Requirements for a memory card to be used as an internal

Not every microSD is suitable for formatting as internal memory.

ParameterMinimum.Recommended
Class speedClass 10UHS-I U3 / A2
Volume.16GB64 GB and higher
FormatFAT32/exFATexFAT (for cards >32 GB)
BrandAnybody.SanDisk, Samsung EVO, Kingston

Using cheap cards without certification can lead to slowdowns and errors in writing data. Before buying, check the reviews about a particular model on forums (for example, 4PDA or XDA Developers).

โš ๏ธ Note: MicroSDHC (up to 32 GB) memory cards often run slower than microSDXC (up to 64 GB.

Step-by-step: how to make a microSD internal memory on Xiaomi

The process of integrating the card into the system takes 5-10 minutes, and it is important to back up the data from the card before you start, since it will be completely formatted.

Insert the card into the microSD slot | Download important files from the card to PC | Charge the phone at least 50% | Close all working applications-->

Follow the instructions:

  1. Open the Settings โ†’ Memory.
  2. Tap on the name of your memory card (for example, SD-map: 128GB).
  3. In the upper right corner, press three dots (โ‹ฎ) and select Memory Settings.
  4. Select Internal Memory (if no point, your device does not support function).
  5. Confirm the formatting (the process will take 1-3 minutes).
  6. Once completed, click Transfer Data to move supported applications to the map.

Note that not all applications support external memory (for example, WhatsApp or Banking applications will remain in the internal memory).

What if there is no โ€œInner Memoryโ€ item?
If the menu does not have the option of formatting as internal memory, try: 1. Update MIUI to the latest version (via Settings โ†’ About Phone โ†’ System Update). 2. Use a card from another manufacturer (some Xiaomi models block uncertified drives). 3. Check the card for errors through the PC (chkdsk utility in Windows). If nothing helps, your device does not hardware support the function.

How to transfer applications to a memory card after formatting

Even after successful formatting, not all applications will automatically migrate to microSD to optimize memory usage.

  1. Open Settings โ†’ Applications โ†’ Application Management.
  2. Select the app you want (like Facebook or Spotify).
  3. Slip the vault. โ†’ Change. โ†’ choose SD-map.
  4. Confirm the transfer (some data may remain in the internal memory).

Note that high-demand system applications and games (such as Genshin Impact or PUBG Mobile) may not be portable or run slower, in which case it is better to leave them in the internal memory.

โš ๏ธ Note: Once the application is transferred to the map, its cache and updates will be saved there automatically. If the card is filled, the application may stop working.

Frequent problems and their solutions

When using microSD as internal memory, Xiaomi users face common errors.

Problem.Reason.Decision
The card is not defined as an internalIncompatible file systemFormat the card in exFAT via PC before installation
Apps fly out after transferLow reading/writing speedUse a Class A2 or higher card
The system asks to format the card after extractionDamage to the file systemReset your phone settings or format the card again

If the phone starts to brake after formatting, try:

  • ๐Ÿ”„ Disable automatic installation of applications on the card (Settings) โ†’ Memory. โ†’ By default: Internal memory).
  • ๐Ÿ—‘๏ธ Clear the cache of system applications (Settings) โ†’ Memory. โ†’ Cleanup).
  • ๐Ÿ”‹ Restart the device in Safe Mode (hold the power button) โ†’ Safe regime).

๐Ÿ’ก

If a memory card starts to get bugged after months of internal use, it's a sign of wear and tear, and it's better to replace the memory stick, because it won't be possible to recover the data.

Alternative ways to expand memory on Xiaomi

If your device doesnโ€™t support microSD formatting as internal memory or you donโ€™t want to risk speed, consider alternatives:

  • ๐Ÿ“ Manual File Transfer: Use the card as a removable medium for photos, videos and music (path: Settings) โ†’ Memory. โ†’ Move files).
  • โ˜๏ธ Cloud Storage: Mi Cloud, Google Drive or Yandex Disk for backup.
  • ๐Ÿ”Œ OTG-Drives: Connect the flash drives through the adapter USB-C/OTG (It is supported on most Xiaomi models).
  • ๐Ÿ”„ Memory Optimization: Remove unnecessary apps and clear the cache through Settings โ†’ Memory. โ†’ Cleanup.

For users who often work with large files (video editing, games), the best solution is to buy a smartphone with a large amount of internal memory (for example, Xiaomi 13T Pro 512 GB).

Can I return the memory card to normal mode after formatting as an internal one?
Yes, but that would require resetting your phone to factory settings (Settings โ†’ Phone โ†’ Reset) and then you can format it as a removable medium, and all the data will be deleted.
Why do they work slower after transferring apps to the map?
The read/write speed of even the fastest microSD cards (up to 100 MB/s) is inferior to the built-in UFS 2.2/3.0 (up to 1200 MB/s), especially in games and applications with intensive graphics, the solution is to leave critical applications in the internal memory.
Can I use a memory card as an internal one on Xiaomi with root rights?
Technically, yes, but it requires manual mounting through ADB or apps like App2SD, but this method is unstable and can lead to data loss or a cyclical reboot of the device. For most users, it is better to use the regular MIUI tools.
Which memory cards are best for Xiaomi as internal memory?
Recommended models (in terms of price/quality ratio): SanDisk Extreme A2 (128 GB) is optimal for most tasks. Samsung EVO Plus U3 (256 GB) - high speed and reliability. Kingston Canvas Go! Plus (64 GB) - budget option for basic needs. Avoid cards without A1/A2 marking or with suspiciously low price - they are often forged.
What happens if you remove a memory card formatted as an internal one?
Android will block apps installed on the card until it returns. Re-inserts may require rebooting. If the card is damaged or formatted on another device, the data on it will become unavailable. Always retrieve the card through the Safe Retrieval menu in the notification curtain.