Why do you need a memory card in Xiaomi Redmi?
Xiaomi Redmi smartphones are known for their price-performance ratio, but even in the top models, internal memory is sometimes lacking. High-resolution photos, 4K video, heavy games and app cache quickly fill the internal drive. Here comes the microSD memory card, a budget solution for expanding storage.
But just inserting a card into a slot is not enough, you need to format it properly, configure it as internal or external memory, and avoid the typical errors that lead to data loss or a slowdown in your phone. In this article, we will examine all the nuances from choosing a card to porting applications and solving reading problems.
Feature of Redmi (unlike the flagship Xiaomi or POCO) — Hybrid support SIM-This means that in many models, you have to choose between the second. SIM-We'll show you how to get around this limitation and make the most of the available space.
How to choose a memory card for Xiaomi Redmi: speed, volume and brands
Not every microSD is right for your smartphone. Redmi's performance depends on the card's speed class, especially if you plan to record 4K video or install apps on it.
- 🔹 Volume: Minimum recommended 64 GB (for photos and music), optimal 128-256 GB (for video and applications).+ and newer support up to 1 TB.
- 🔹 Speed class: Applications are required UHS-I (U1/U3) or A1/A2 (Optimized for Android. Class cards 10 It is only suitable for storing media files.
- 🔹 Brands: Best Options - SanDisk Ultra, Samsung EVO Plus, Kingston Canvas Go!. - Avoid no-name cards: they are often forged and fail.
⚠️ Attention: In Redmi models 10A, Redmi 9C Similar microSD slots are combined with SIM-This means that you can use either two cards at the same time. SIM-card SIM + Check the specifications of your model on the official Xiaomi website.
| Model Redmi | Max, the volume of microSD | Slot type | Support for UHS-I |
|---|---|---|---|
| Redmi Note 13 Pro+ | 1 TB | Highlighted | Yes (U3) |
| Redmi 12 | 512GB | Hybrid | Yes (U1) |
| Redmi A2+ | 256GB | Hybrid | No. |
| Redmi Note 11 Pro | 1 TB | Highlighted | Yes (U3) |
Installation of a memory card: step-by-step instructions
Turn off your smartphone before installing it, which will prevent damage to the slot contacts.
- Find a tray for SIM-The maps (usually on the left side of the device) can be located on the right side of the Redmi Note.
- Use a paper clip or a special key (comes in the kit) to remove the tray.
- Place the microSD in the slot face up (contacts must be directed to the phone). In hybrid slots, the memory card takes the place of the second SIM.
- Carefully insert the tray back before the click.
☑️ Preparation for microSD installation
After switching on the phone will be a notification "New" SD-You're not in a hurry to format it:
- 📁 Whether files are displayed (if the card has already been used).
- 🔄 Read/write speed (can be tested with the app) A1 SD Bench).
⚠️ Note: If the phone can't see the card, don't try to format it via a PC. Xiaomi Redmi uses an exFAT file system or FAT32, a Windows default offers NTFS, which is not compatible with Android.
Formatting the card: internal vs. external memory
Android offers two microSD options:
- Portable Storage: The card works like a flash drive – you can transfer files, but you can not install applications.
- Internal Storage: The card becomes part of the system, you can transfer applications to it, and once formatted in this mode, the card cannot be used in other devices without being completely cleaned.
To select the mode:
- Go to Settings → Memory → Memory Map.
- Click “Configure” → select “Inner Memory” or “External Memory”.
- Confirm the formatting (all data will be deleted!).
What happens if you interrupt the formatting?
⚠️ Note: When using the card as internal memory, Xiaomi Redmi encrypts data, which means that once the card is removed, it will not be read on another device without resetting the encryption (losing all data!).
| Parameter | External memory | Internal memory. |
|---|---|---|
| Installation of applications | ❌ No. | ✅ Yes (partially) |
| File transfers | ✅ Yes. | ✅ Yes. |
| Compatibility with other devices | ✅ Yes. | ❌ No (encryption) |
| Speed of operation | 🔹 Depends on the class of the card. | 🔹 It can slow down over time. |
Transferring data and applications to a memory card
If you've chosen internal memory, you can move some of your applications and files, but there are limitations.
- 📱 Apps: Only those that support Adoptable Storage are ported (most games and social networks are not).
- 📁 Photos, videos and music can be moved manually or through Settings → Memory. → Data portability.
Instructions for the application perenos:
- Open Settings → Applications → Select an application.
- Press "Storage" → "Change".
- Choose. SD-Card (if the option is active).
💡
To free up space on internal memory, transfer the cache of applications (such as Google Maps or Telegram).>) manually through the file manager. The cache folder is usually called Android/data.
⚠️ Note: Moving apps to a map can slow them down, especially if a class card is used U1 For games and heavy applications (such as Genshin Impact) it is better to leave them in internal memory.
Mistakes in working with a memory card and their solution
MicroSD problems in Xiaomi Redmi are usually related to incompatibility, file system damage or hardware defects.
- 🚫 "SD-Map damaged": Try formatting it via phone (Settings) → Memory. → Format. If it doesn't work, use a PC and utility. SD Card Formatter.
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If the card stopped being determined after the MIUI update, try rolling back to the previous firmware version or resetting your phone settings (without deleting data).
To diagnose the speed and health of the card, use the applications:
- 📊 A1 SD Bench – Read/Write Speed Test.
- 🛠️ SD Insight – authentication of the card (detects counterfeits).
Optimization of memory card: tips for advanced
To make microSD last longer and work faster:
- 🔋 Turn off automatic backups to the card (like Google Photos). Permanent recording shortens the life of flash memory.
- 🧹 Regularly clean the cache of apps that write data to the card (such as Spotify or Navitel).
- 🔄 Format the map every 3-6 months (pre-copying the data) and this prevents fragmentation.
For users of Redmi with root rights:
- 🛠️ You can forcefully transfer any application to SD assisted ADB: adb shell pm set-install-location 2 (cancelled by adb shell pm set-install-location 0).
- 📁 Change the file system to ext4 (It will increase speed, but will require manual mounting).
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If you often shoot 4K video, select a separate folder on the map and format it in exFAT via PC, which will reduce the risk of recording breakage with large files (>4 GB).