Formatting SD-Maps as internal memory on Xiaomi: a complete guide

Xiaomi smartphones with limited internal memory often face a shortage of space for applications and files. SD-This method allows you to expand the memory of the device without buying a new gadget, but has nuances, from choosing the right card to possible performance problems. SD-Map as internal memory on Xiaomi phones, including models on the MIUI 12/13/14 Android 10-14.

It's important to understand that formatting a card as an internal drive is not just about transferring files. SD-It's an OS-level map that allows you to put applications directly on the map, but it requires a high-speed class map. A1/A2 or UHS-I/UHS-II, It's also worth considering that once formatted, the map can't be retrieved without losing data, it will become "tied" to the device.

Why format SD-map as an internal memory?

The main reason is the expansion of available space for installing applications. Many budget Xiaomi models (for example, Redmi 9A, Poco M3) come with 32 or 64 GB of memory, of which the user can actually access only 20-50 GB. With active use of instant messengers, games and social networks, this is quickly lacking.

Advantages of the method:

  • ๐Ÿ“ฒ The ability to install applications directly to SD-card (as opposed to the standard portable storage mode").
  • ๐Ÿ”„ Automatic data distribution: the system decides which files to store on the card and which in the internal memory.
  • ๐Ÿ’พ Saving media files (photos, videos) by default SD, freeing up.
  • ๐Ÿ”ง Support for Adoptable Storage on Android 6.0+, Which is used by all modern smartphones Xiaomi.

There are, however, downsides:

  • โš ๏ธ Reduced speed when using slow cards (class) 4/6/10 wrong!).
  • ๐Ÿ”’ The card becomes encrypted and linked to the device โ€“ it can not be read on another phone or PC.
  • ๐Ÿ“‰ Application crashes are possible if the card suddenly shuts down (for example, due to poor contact).
๐Ÿ“Š How much memory is your Xiaomi?
Up to 32GB.
32-64GB
64-128GB
More than 128GB

Requirements for SD-map formatting as internal memory

Not every memory card is suitable for use as internal storage, Xiaomi has strict requirements for speed and reliability of the drive, and here are the key parameters:

ParameterMinimum requirementRecommended value
Class speedClass 10 or UHS-IA1 or A2 (for applications)
Volume.16GB.64โ€“256 GB (optimum for most tasks)
File systemAutomatically selected by the systemext4 or f2fs (for Android)
ManufacturerAny reliable brandSamsung EVO Plus, SanDisk Ultra, Kingston Canvas

Why is speed important when used? SD-And the memory of the card as internal memory is not just the media files, but the parts of the applications, the cache, the time data, and if the card is slow, it will lead to a slow card:

  • ๐Ÿข Slowing down the launch of applications (especially games and heavy programs).
  • ๐Ÿ”„ Interface slowdowns MIUI multitasking.
  • โŒ Possible errors when writing data (for example, file download breaks).

โš ๏ธ Attention: Class Class Class Cards 4/6 or without marking A1/A2 They're not suitable, they're going to cause critical system lags, so check the specifications on the packaging or with utilities like this before you buy them. SD Card Tester.

๐Ÿ’ก

Before buying a card, check it for counterfeit using the H2testw (Windows) or SD Insight (Android) app, and many of the branded cards on the market are fake at an underrated rate.

Step-by-step instructions: how to format SD-map as an internal memory

The procedure differs depending on the version of MIUI and Android, but the overall algorithm is similar. Consider the universal method for most Xiaomi devices (including the Redmi Note, Poco, Mi series).

Make sure the card is formatted as a portable storage (if previously used)|Backup important data from the card|Charge your phone at least 50%|Connect to a stable Wi-Fi network (for downloading updates if required)-->

Step 1. Insert. SD-slot-card.

  • ๐Ÿ“ฑ If your Xiaomi has a hybrid slot (like the Redmi Note 10), youโ€™ll have to choose between the second one. SIM-card SD. Insert the card into the microSD slot.
  • ๐Ÿ”Œ When you first connect, the system will suggest you choose the mode of use: "Portifical storage" or "Internal memory.

Step 2. Go to the storage settings.

Open the Settings menu โ†’ Memory (or Warehouse) Click on your name SD-maps (e.g. SanDisk) 128GB), Then select the Three Dots (โ‹ฎ) โ†’ Settings โ†’ Formatting as an internal memory.

Step 3. Confirm the formatting.

  • ๐Ÿ“ The system will warn you that all data from the card will be deleted.
  • โณ The process can take from 1 to 10 minutes depending on the size of the card.
  • ๐Ÿ”„ After completion, the phone restarts.

Step 4: Data Transfer (optional).

After formatting, the system will offer to transfer some data (photos, videos, some applications) to the SD-You can do it right away or later manually through the Settings. โ†’ Annexes โ†’ Move it to SD-map.

What if there is no โ€œformat as an internal memoryโ€ item?
If the menu does not have formatting as internal memory, this can mean: 1. Your card is not supported (too slow or damaged). 2. The device runs on an outdated version of Android (below 6.0) - update the firmware. 3. The manufacturer has blocked the function (relevant to some Xiaomi models on MIUI Global). Solution: try formatting the card in FAT32 on a PC, then repeat the procedure on the phone.

How to transfer applications to SD-map

Even after successful formatting, not all applications will automatically move to the formatting site. SD-Some of them, especially the system ones, will remain in the internal memory:

Method 1: Through Application Settings

  1. Open Settings โ†’ Applications โ†’ Application Management.
  2. Select the app you want (such as WhatsApp or Facebook).
  3. Press Warehouse. โ†’ Change. โ†’ SD-map.
  4. Confirm the transfer. Some data (such as cache) may remain in internal memory.

Method 2: With ADB (for advanced users)

If the transfer option is blocked, you can use the ADB command:

adb shell pm set-install-location 2

This command forces the system to install new applications on the SD-Default card. Attention: requires developer mode on and PC connection.

Limitations:

  • ๐Ÿšซ Not all apps support portability (e.g. Google Play Services or Google Play Services). MIUI System Apps).
  • ๐Ÿ”„ Some data (e.g. widgets) may not work properly after transfer.
  • ๐Ÿ“ฑ Annexes to SD-The map will not work if you remove the map.

๐Ÿ’ก

Transfer of applications to SD-The card does not always solve the problem of memory shortage. Many modern games (for example, Genshin Impact or Call of Duty Mobile) require installation on internal storage due to protection against piracy.

Frequent problems and their solutions

In the case of SD-Xiaomi users often encounter errors. Consider typical cases and ways to fix them.

Problem 1: The system cannot see SD-map

  • ๐Ÿ”Œ Check the physical connection: Remove and paste the card again.
  • ๐Ÿ“ฑ Reboot the phone.
  • ๐Ÿ› ๏ธ If the card is damaged, format it on PC in FAT32 And repeat the procedure on your phone.

Problem 2: Apps are flying out or slowing down

  • โšก Check the card speed class - if it's Class 10 marking A1/A2, replace her.
  • ๐Ÿ”„ Transfer problematic applications back to internal memory.
  • ๐Ÿ“‰ Clear the app cache in Settings โ†’ Memory. โ†’ Clear the cache.

Problem 3: You can't get out. SD-map

After formatting as internal memory, the card becomes part of the system, and then it can be extracted.

  1. Transfer all important data back to your internal memory.
  2. Open the Settings. โ†’ Memory. โ†’ SD-map โ†’ Three points (โ‹ฎ) โ†’ Settings โ†’ Formatting as a portable.
  3. โš ๏ธ Note: This will remove all data from the card!

โš ๏ธ Note: If after formatting as internal memory, the phone began to slow down strongly, return the settings to factory (Settings) โ†’ The phone. โ†’ Resetting settings. This will delete all the data, but solve the performance problem.

Alternative ways to expand memory on Xiaomi

If formatting SD-Cards as internal memory is not suitable (for example, due to slow card or unstable operation), consider alternatives:

1.Use of SD-maps as portable storage

  • ๐Ÿ“ Store only media files (photos, videos, music) on the map).
  • ๐ŸŽต In camera settings (Camera settings) โ†’ Storage room) select SD-map as default save location.

2. Cleaning of internal memory

  • ๐Ÿงน Delete unnecessary files through Settings โ†’ Memory. โ†’ Cleanup.
  • ๐Ÿ—‘๏ธ Clear the cache of apps (especially messengers and social networks).
  • ๐Ÿ“‚ Transfer heavy files (such as movies) to the cloud (Google Drive, Mi Cloud).

3. Connection OTG-storage

If your Xiaomi supports USB OTG, you can connect an external SSD or flash drive.

  1. Buy it. OTG-Adapter (e.g. Xiaomi) USB-C to USB).
  2. Connect a flash drive or hard drive.
  3. Use a file manager (such as Mi File Manager) to work with files.

4. Application optimization

  • ๐Ÿ› ๏ธ Turn off autoloading of unnecessary applications in Settings โ†’ Permits โ†’ Auto-start.
  • ๐Ÿ“ฑ Install โ€œlightweightโ€ versions of apps (e.g. Facebook Lite, Messenger Lite).

Comparison SD-Xiaomi maps: which to choose in 2026

Choosing the right one SD-The cards are critical for stable performance. Below is a comparison of popular models tested on Xiaomi devices:

ModelVolume.Class speedPrice (roughly)Notes
SanDisk Ultra A1128GBA1, UHS-I, 100MB/s1 500โ€“2 000 โ‚ฝThe best choice for most tasks
Samsung EVO Plus256GBA2, UHS-I, 130 MB/s2 500โ€“3 000 โ‚ฝBest speed for games and heavy applications
Kingston Canvas Go! Plus64GBA2, UHS-I, 170 MB/s1 200โ€“1 500 โ‚ฝBudget option with high speed
Lexar Play512GBA2, UHS-I, 150 MB/s4 000โ€“5 000 โ‚ฝFor maximum volume, but expensive

Critical: Cards without A1/A2 marking (e.g. Transcend Class 10 without additional designations) are not suitable for use as internal memory on Xiaomi.They can work in portable storage mode, but when formatted as internal will lead to system lags.

When buying, pay attention to:

  • ๐Ÿท๏ธ Presence of marking A1 or A2 packed.
  • ๐Ÿ“ฆ Producer country (preferably maps made in Japan, Korea or Taiwan).
  • ๐Ÿ›ก๏ธ Guarantee (Reliable brands give a lifetime warranty).

FAQ: Frequent Questions About Formatting SD-maps on Xiaomi

Can I format it? SD-The card as internal memory for all Xiaomi models?
No, not all. Adoptable Storage is available on Android 6.0+ devices, but some Xiaomi models (especially those with MIUI Global) may block this option. For example, it works on Redmi 5A or Mi A1, and it doesn't work on some versions of Poco X3. Check for a Settings โ†’ Memory item.
What happens if you take it out? SD-A card formatted as an internal memory?
The system will give an error and the applications installed on the card will stop working. When you re-insert the card, the data will recover, but if the card is damaged, you may need to reinstall the applications. Always extract the card through a secure shutdown (Settings โ†’ Memory โ†’ Remove).
Can I get it back? SD-Card in portable storage mode without data loss?
No. If you back-format all the data from the card, you'll delete it. Before you do it, you'll copy important files to your PC or the cloud. USB. Copy the data from SD-map (it will be displayed as a separate disk). format the card as portable in the phone settings.
Why did the phone slow down after formatting as internal memory?
You are probably using a slow-moving SD-Check her speed class: you need to run her steady. A1 or A2. Also, brakes can occur due to: data fragmentation on the map (solution: format it again); RAM shortage (close the background applications); Map damage (check with the help of SD Card Tester).
Can I use it? SD-Map as internal memory on Xiaomi with custom firmware?
On informal firmware (e.g. LineageOS or Pixel Experience), Adoptable Storage may not work smoothly. It is recommended that you back up data before formatting, use high-speed cards (A2), check firmware compatibility with the function on forums (e.g. 4PDA or XDA Developers).