How to properly insert and configure a memory card in Xiaomi Redmi 8: from choosing a microSD to solving problems

Xiaomi Redmi 8 is one of the brand’s most popular budget smartphones, and is still in high demand for its reliability and functionality. However, 32 or 64 GB of internal memory quickly runs out, especially if you like to take pictures, download movies or install heavy games. The solution is simple: install a microSD card. But how do you do it right so you don’t have to face errors or data loss?

In this article, we will examine not only the physical connection of the card (where the slot is located, how to insert the SIM and microSD simultaneously), but also all the nuances of the software configuration: from the choice between external and internal memory to the solution of typical problems like “the card is not determined” or “files are not saved”. Special attention will be paid to the unique feature of Redmi 8 – a hybrid slot that requires the sacrifice of the second. SIM-card.

If you’ve never worked with Android memory cards before, don’t worry: the instruction is adapted for beginners, with step-by-step screenshots (interface descriptions) and warnings about possible pitfalls. And for experienced users, we have prepared a section with performance optimization and hidden settings. MIUI, This will help you speed up your microSD work.

1.What type of memory card is suitable for Xiaomi Redmi 8

Before you run to the store for a microSD, you need to understand what kind of cards your smartphone supports. Redmi 8 is equipped with a hybrid slot that combines space for the second one. SIM-This means you can use either 2 cards or 2 cards. SIM + without microSD, or 1 SIM + microSD, two at the same time. SIM-Memory card and card cannot be inserted.

Now on the technical specifications:

• 📌 Type of card: microSD only (not miniSD or miniSD) SD!). MicroSDHC (up to 32 GB) and microSDXC (up to 2 TB) versions are supported, but with reservations.
• 🔢 Maximum volume: officially up to 512 GB. In practice, 1 TB cards also work, but there may be problems with formatting.
• ⚡ Speed class: Class recommended 10 or UHS-I (U1/U3) videotape 4K. Class Class Cards 4 They will slow down when recording files.
• 🔒 File system: for cards up to 32 GB — FAT32, Redmi 8 supports both, but formatting as internal memory requires exFAT.

Important: If you plan to use the card as internal memory (for installing applications), take the model with a high read/write speed (U3 or A2). Cheap cards without markings will be laid when the games start.

⚠️ Warning: Do not buy memory cards marked "For Dash Cam" or "For Security Camera"; they are optimized for cycling and quickly fail in normal use in a smartphone.

2.Where is the memory card slot in Redmi 8

The memory card slot (and SIM-Xiaomi Redmi 8 is located on the left end of the case, it is easy to recognize by the small hole for the extraction of the tray — it is located next to the volume buttons. To open the slot, you will need a clip or a special key (goes with the phone).

Step-by-step instructions for removing the tray:

1. Turn off your phone (optional, but recommended for safety).
2. Put the paperclip in the hole before clicking - the tray will be pushed out a little.
3. Carefully pull the tray over yourself and get it out.

Now, look at the tray carefully, and it has two slots -- one for nano-SIM, one for microSD, or a second for nano-SIM. If you want to use a memory card, you have to donate a second one. SIM-The card (if you have it installed).

Pay attention to the marking of nests:

- Nest. SIM 1 - for the main SIM-Cards (always working).

- Nest. SIM 2/microSD or the second SIM, Memory card (not simultaneously available!).

3. How to insert a memory card in Xiaomi Redmi 8: Step-by-step instructions

Once the tray is removed, we start installing the microSD, and it's important to do this carefully so that the contacts don't get damaged. Here's a detailed algorithm.

Let's take each step in more detail:

1. Card orientation: The microSD should be placed in the contacts down (metal stripes to the back of the phone).
2. Fix: The map has to be drowned in the nest to the point, and if it's wobbling, you've stuck it in the wrong place.
3. Installation of the tray: insert the tray smoothly, without distortion. If it does not enter, check if something interferes (for example, dust in the slot).

After installation, turn on the phone. MIUI You should automatically identify the new memory card and suggest you configure it. If that doesn't happen, move on to the next section.

⚠️ Warning: Never remove the tray when your phone is on if the card is used as internal memory, this can cause file system damage and data loss.

4. Memory card setup: external or internal storage

When Redmi 8 detects a new memory card, a notification will appear on the screen with a choice: use it as a portable storage (external memory) or as internal memory, and understand what each option means and which one to choose.

Which option should I choose?

• 📷 Portable storage is suitable if you plan to use the card for photos, videos and music, as well as connect it to other devices (laptop, camera).
• 📱 Internal memory is needed if you want to install applications on a map (for example, for games like Genshin Impact or Call of Duty Mobile). But remember: once formatted, the map will not be read on a PC without special programs.

If you've chosen internal memory, the phone will suggest moving data from the built-in drive to the card, which can take anywhere from 10 minutes to an hour depending on the size of the files. Don't interrupt it!

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Before formatting the card as internal memory, back up your important data on your PC, and after the procedure, all files on the card will be erased and you can't cancel it.

5. Optimization of memory card operation: hidden settings MIUI

Even after successful configuration, the memory card may not work perfectly: applications are lagging, files are copied for a long time, and the system writes “Not enough space”, although there is free space on the map. MIUI There are a few hidden settings that will help optimize performance.

The first thing to do is move the app cache to the map:

1. Go to Settings → Applications → Application Management.
2. Select the app you want (like WhatsApp or Google Chrome).
3. Click Warehouse → Change → Memory Map.

The second is to set the default media files to the card:

• 📸 For the camera: Camera → Settings → Preservation site → Memory map.
• 🎵 For downloads: Settings → Warehouse → Default memory → Memory map.

Third, disable automatic card backup (if it interferes): some system applications MIUI They back up the memory card, which takes up space, to fix it:

1. Go to Settings. → Accounts and synchronization → Backup MIUI.
2. Turn off the option of backup to the memory card.

Typical problems and their solutions

Even with the right memory card installation, Redmi 8 users sometimes encounter errors, and let's look at the most common ones and how to fix them.

🔴 Memory card not determined

If the phone doesn't see the microSD,

• 🔄 Reset the device.
• 🧹 Clean the card and slot contacts with a soft brush (dust or oxidation may interfere with the connection).
• 🔧 Try formatting the map on PC in FAT32 or exFAT (use the official utility) SD Formatter).
• 📱 Check the card on another device. If it doesn't work there, the card is defective.

🟡 The map is determined, but the files are not saved.

Causes and solutions:

• 🔒 Card is Write-Protected: Check the Lock switch on the adapter (if you use it).
• 🗑 File system damaged: format the card via phone (Settings) → Warehouse → Memory map → Format).
• 📉 Not enough space: Some apps (like Google Camera) require at least 10% free space on the map.

🟢 Applications are not installed on the map

If you chose the card as internal memory, but the applications are still installed in the built-in storage:

• 🔧 Go to Settings. → Annexes → [name] → Warehouse → Change and manually transfer it to the map.
• 📱 Update. MIUI Up to the latest version: there was an error in the old firmware with the transfer of applications.
• 🛠 Use the App Mgr app III (from Google Play for forced transfer.

⚠️ Warning: If the memory card starts to get bugged (e.g., "Map damaged"), back up the data immediately and replace it. This is a sign of physical wear and tear, and soon the card may completely fail, taking all the files with you.

7 How to safely remove the memory card

Many users simply turn off their phone and pull out their card, which is dangerous, especially if the card is used as internal memory.

1. Open the Settings → Storage.
2. Click on the Memory Card (or SD-map).
3. In the upper right corner, tap three dots and select Extract (or Safe Extract).
4. Wait for the notification "Card can be safely retrieved".
5. Turn off the phone and get the card.

If you retrieve the card without safely shutting down, you risk:

• 🔴 Damage the file system (the card will become unreadable).
• 📂 Lose unsaved data (such as photos that haven’t been fully recorded).
• 📱 Downed the settings of applications installed on the map.

Especially carefully, you need to handle cards formatted as internal memory, they are encrypted, and if extracted improperly, they may require resetting the phone to factory settings.

8.Alternative ways to expand memory

If for some reason you can’t or don’t want to use a memory card, there are other ways to make room for Redmi 8:

• ☁️ Cloud storage: Google Drive, Mi Cloud or Yandex Disk allow you to automatically upload photos and videos, freeing up internal memory.
• 🔗 OTG-storage devices: through the adapter USB-C → USB-A You can connect a flash drive and drop files on it.
• 🧹 Cache Cleanup: Regularly delete unnecessary files through Settings → Warehouse → Cleanup.
• 📱 Porting apps to PC: Some games (e.g, PUBG Mobile allows you to save progress in the cloud and remove them from your phone.

But these methods won't replace the memory card completely, like cloud storage, which requires a stable Internet connection. OTG-It's not easy to carry a flash drive, so microSD is the most versatile solution.

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Memory card is the cheapest and most effective way to expand Redmi memory 8. But remember: cheap microSD without speed labeling (U1/U3) They can slow down the system, especially when recording videos or running games.

FAQ: Frequent questions about memory cards in Xiaomi Redmi 8