Setup memory card in Xiaomi Redmi 7: from formatting to porting applications

Xiaomi Redmi 7 is a popular smartphone with the ability to expand memory to 512 GB via microSD. But just inserting a card is not enough: you need to adjust it correctly to avoid errors, brakes and data loss. In this article, we will analyze all the steps from choosing a card to porting applications, and also solve the typical problems faced by owners.

Many users mistakenly believe that the memory card in Redmi 7 works out of the box without additional manipulation, but in practice, improper configuration can lead to slowdown, inability to install applications on SD or even loss of files, and we will show how to avoid these problems and make the most of additional storage.

1. Which memory card to choose for Xiaomi Redmi 7

The smartphone supports microSD up to 512GB, but not all cards are equally good.

• 🔹 Speed Class: Minimum Class 10 (UHS-I), better U3 or A2 — They are optimized for applications.
• 🔹 Brand: Preferably SanDisk, Samsung EVO, Kingston - they're less likely to fake.
• 🔹 64-128 GB is enough for photos and music, 256+ GB – if you plan to move applications.

Important: Redmi 7 does not support exFAT - only FAT32 (up to 32 GB) or NTFS (with limitations).

⚠️ Attention: Class Cards 4/6 They can be used to record videos in 4K Or working with applications. 7 This is manifested as a "stuttering" interface.

2. How to insert a memory card in Redmi 7: Step-by-step

Xiaomi Redmi 7 uses a hybrid slot, so you can either install a second SIM or a microSD.

1. Turn off your phone (required!).
2. Then put the slap on the left side of the slap.
3. Place the microSD in the top slot of the tray (marked up).
4. Put the tray back in before the click.

After switching on the phone will be a notification "New" SD-map discovered. Don't ignore it, go straight to settings.

⚠️ Note: If the phone doesn’t see the card, check it: 🔸 Contacts card for oxidation (wipe with a lastic). 🔸 Installation correctness (the label must be on top). 🔸 File system compatibility (FAT32/NTFS).

3. Formatting a memory card in a phone

The first thing you need to do after installation is to format the card via your phone, not on a PC, and this ensures compatibility with MIUI.

1. Go to Settings. → Memory.
2. Choose. SD-map → Format.
3. Confirm the action (all data will be deleted!).
4. Select “Internal Memory” (if you want to port applications) or “Portable Storage” (file only).

Critical: If you select "Inner Memory", the card will be encrypted and not readable on other devices, which allows you to install applications on SD, but has limitations:

• 📱 You can't get a card out without resetting your phone.
• 🔄 When reset to factory settings, the data on the map will also be deleted.
• 💻 The card will not be visible on the PC through the card reader.

4. Transfer data and applications to a memory card

After formatting, you can transfer files and applications.

Transfer of files (photos, videos, music)

1. Open Files (app) MI File Manager).
2. Select the files you need. → Move it → choose SD-map.
3. To automatically save photos/video to the camera: camera settings → Preservation site → SD-map.

Portability of applications

Not all applications can be migrated to SD. For supported:

1. Go to Settings → Applications → Application Management.
2. Select the application → Warehouse → Change. → SD-map.

Limitations:

• 🚫 System applications (MIUI, Google Play cannot be moved.
• 🚫 Some games, for example, PUBG Mobile) block the transfer.
• 🚫 Widgets will stop working if the application is SD.

💡

Before you migrate an application to SD, check its size in Settings → Applications. If it takes < 100 MB, the transfer is pointless – the space savings will be minimal.

5. Optimization of the memory card

To ensure that the card works quickly and does not slow down the system:

• 🔧 Turn off caching on SD: Settings → Additionally. → Memory. → Cash on. SD-map → Shut down.
• 🔧 Clean your garbage regularly: use it. MIUI cleaner SD Maid.
• 🔧 Don’t fill 100% of the card: leave 10-15% free space for stable work.

To speed up reading/write:

1. Move frequently used files (music, photos) to the root of the map, not deep folders.
2. Turn off automatic download of files in messengers on SD (this slows down the work).

💡

Use the card as a portable storage device if you don’t plan to port apps, which will keep you compatible with other devices and make it easier to back up.

6. Solving common errors

Even after you set it up properly, you can have problems.

🔴 Mistake: "SD-map damaged"

Causes and solutions:

• 🛠️ File system damaged: format the card via phone.
• 🛠️ Physical damage: check the card on another device. If it doesn't work, replace it.
• 🛠️ Virus: scan the map via Dr.Web or Malwarebytes.

🔴 Error: “Not enough space” when transferring applications

This happens if:

• The map is formatted as "Portable Storage" (app portability is not possible).
• The application does not support portability (check in Settings → Apps).
• There is less than 1 GB of free space on the card.

🔴 The card is not visible on the PC, but works on the phone.

It's probably formatted as "Inner Memory."

1. Connect your phone to your PC in File Transfer (MTP) mode.
2. Use MIUI File Explorer to transfer files.
3. Reset your phone settings (the data on the map will be deleted!).

💡

If the card stopped being determined after the MIUI update, try rolling back on the previous firmware version or wait for a patch.This problem was massive in MIUI 12.5 for Redmi 7.

7 How to safely remove the memory card

Incorrect extraction can result in data loss or card corruption.

1. Open the Settings → Memory.
2. Press Extract. SD-Card (if the option is active).
3. Wait for the "Safely Extract" notification.
4. Turn off the phone and remove the card.

If the Remove option is missing (the card is used as internal memory), the only way is to reset the phone to factory settings. So always back up important data!

⚠️ Note: Removing a card while recording files (e.g., shooting videos) causes 90% of the damage to the file system, and only through specialized programs like Recuva or DiskDigger can you recover the data after that.

FAQ: Frequent questions about the memory card in Redmi 7