How to connect the card to Xiaomi phone: SIM, microSD and eSIM

Connecting the card to a Xiaomi smartphone is a challenge that every new owner of the device faces. However, even experienced users are sometimes surprised to find that the phone does not see the SIM- card or recognize the microSD. The reason most often lies in the wrong installation, format incompatibility or software failures. In this article, we will discuss all the ways to connect cards to Xiaomi phones, from physical installation to setting up a virtual eSIM, and also explain how to avoid typical errors.

It is important to understand that modern Xiaomi models (such as the Redmi Note 13 Pro+ or Xiaomi 14 Ultra) support different combinations of cards: two nano-SIM, one nano-SIM + microSD, or even eSIM instead of a second physical card. The choice depends on the design of the tray and the firmware version. We will dwell on each option in detail so that you can confidently customize your gadget.

Types of cards that support Xiaomi phones

Before you plug in the card, determine which type you want. Xiaomi smartphones work with three main types:

• 📱 Nano-SIM is the standard format for physical SIM- cards (size 12.3×8.8 mm) used for mobile communications.
• 💾 MicroSD is a memory card for storage expansion (up to 1TB in new models). Importantly, not all Xiaomi phones support microSD!
• 📲 eSIM is a virtual SIM- card embedded in the phone and is supported in flagships (Xiaomi 13T Pro, Mix Fold 3) and some Redmi models.

Key point: most Xiaomi phones tray hybrid - this means that you can install either two nano-SIM, or one nano-SIM + microSD. The exception is the model with support for eSIM, where the second slot can be virtual. To specify the configuration of your device can be on the official Xiaomi website or in the documentation.

If you plan to use two physical SIM- cards, make sure your model is not one where the second slot is occupied under microSD. For example, in the Xiaomi 12T Pro you can install either two nano-SIMs or one nano-SIM + microSD, but not all three at the same time.

Preparation for installation: what to do before connecting the card

Before you insert the card into your phone, follow a few mandatory steps, which will help you avoid errors such as "SIM- card not found" or "Memory card damaged".

⚠️ Warning: If you are switching from another phone, do not remove the SIM- card when the device is on, which may damage the contacts. Always turn off both phones before changing.

• 🔍 Check the format of the card. Nano-SIM should be trimmed exactly to the template (or purchased already in nano format). MicroSD should be formatted in FAT32 or exFAT (for cards >64 GB).
• 📱 Make sure it's compatible. For example, Xiaomi 14 Ultra doesn't support microSD, and Redmi Note 12 does.
• 🔋 Charge your phone. If the battery is under 20%, some models may not recognize the new card because of the energy savings.
• 📡 Check the network coverage. If the SIM- card is new, make sure the operator activates it (especially important for eSIM).

For microSD, it is also recommended to:

• 🛠️ Format the card on your computer before installation (if new or used in another device).
• 📊 Check the class speed (class 10 or UHS-I for recording 4K- video.

Step-by-step: how to insert nano-SIM or microSD in Xiaomi

The process of installing physical cards is the same for most Xiaomi models, but there are nuances depending on the location of the tray.

1. Find a card tray. Most Xiaomi phones have it on the top or side end, except for the retractable model (such as the Xiaomi Mix Fold) where the tray is hidden under the lid.
2. Remove the tray. Use a paper clip or a special key (included). Put it in the hole next to the tray and press until you click. The tray will be pushed out automatically.
3. Set the maps. Focus on the tray: 📱 For nano-SIM: the contacts should be down, the bevelled angle to the top left corner of the tray. 💾 For microSD: contacts up, label out.

Put the tray back in. Pull it right up to the stop. Make sure it sits flat, and it can cause the contacts to become damaged.

If the card is installed correctly, a notification will appear about a new SIM or microSD.

If the phone doesn't see the map,

• 🔄 Reset the device.
• 🧹 Clean the tray and card contacts with dry soft cloth (do not use alcohol!).
• 🔧 Check if your Xiaomi model supports this type of card (e.g., Xiaomi 13 Lite does not have a microSD slot).

For models with a retractable mechanism (for example, Xiaomi Mix Fold 3):

1. Press the tray extract button (usually located on the top end).
2. Wait until the tray is automatically moved.
3. Set the cards according to the markup (such models often have separate slots for SIM and microSD).

Set up eSIM in Xiaomi phones: a step-by-step guide

The virtual SIM- card (eSIM) is a convenient alternative to physical cards, but it takes more steps to set up. eSIM support has been introduced in Xiaomi relatively recently, so it is not available in all models.

• ✅ Supports eSIM: Xiaomi 13/14, Mix Fold 2/3, Redmi K60 Pro, POCO F5 Pro.
• ❌ Not supported: Redmi Note 12/13, POCO X5, budget models.

To activate the eSIM:

1. Make sure that your operator supports eSIM (in Russia it is MTS, Beeline, Tele2, MegaFon).
2. Get it. QR-code or activation data from the operator (usually sent by email or in your personal account).
3. Go to Settings. → SIM-maps and mobile networks → Add a mobile network.
4. Select Download SIM- card and scan the QR- code (or enter the data manually).
5. Wait for activation (up to 5 minutes) and then you will receive a notification of successful installation.

⚠️ Warning: Some carriers (e.g. Yota) do not support eSIM on Xiaomi. Please check with your provider before buying a phone.

If the eSIM is not activated:

• 🔄 Reboot the phone.
• 📡 Check your internet connection (to download your eSIM profile).
• 📞 Contact the operator support – your profile may not be linked to your number.

💡

If you travel frequently, eSIM is more convenient than a physical SIM: you can quickly switch between local operators without changing cards. For example, in Xiaomi 14 you can save up to 5 eSIM profiles and activate them as needed.

Common mistakes and their solutions

Even with the right card installation, Xiaomi users sometimes face problems, and let’s look at typical situations and ways to fix them.

If none of these methods worked, try:

• 📱 Reset network settings: Settings → SIM-maps and mobile networks → Resetting network settings.
• 🔧 Update firmware: Card recognition bugs are sometimes patched in newer versions MIUI.
• 🛠️ Contact the service: If the problem is in the hardware (damaged connector), self-repair is not recommended.

Pay special attention to error messages, for example, if the phone says "SIM- card is disabled", this may mean that the operator has blocked it for non-payment, in which case contact the provider's support.

How to transfer data to a microSD or configure it as internal memory

If you have a microSD installed to expand your memory, you can use it in two ways:

1. As a removable drive - for storing photos, videos, music.
2. As internal memory – for installing applications (not available on all models).

To set up microSD as internal memory:

1. After installing the card, go to Settings → Memory.
2. Select your microSD and click Format as internal.
3. Confirm action. Attention: all data on the map will be deleted!
4. Wait for the formatting to be completed (may take a few minutes).
5. In the memory settings, select which data to transfer to microSD (applications, photos, files).

⚠️ Warning: If you format a microSD as internal memory, it won't be used on other devices without re-formatting, and microSD applications may be slower than on-board memory.

To transfer data to the microSD manually:

• 📁 Use Explorer (built-in application MIUI).
• 📷 For photos and videos: in the Gallery, select files → Share → Save to SD- map.
• 🎵 For music: in the Music app, click on the track → Save to the memory card.

If the microSD is used as a removable drive, it can be retrieved at any time through Settings → Memory → Remove the SD- card. Do not retrieve the card without first "safe retrieval" - this can lead to data loss!

Features of connecting cards in different models Xiaomi

The design of the trays and the support for card types vary depending on the series and year of the phone's release.

• 📱 Flagships (Xiaomi 13/14, Mix Fold 3): Support for eSIM + nano-SIM. There is no microSD slot (except for Xiaomi 13 Lite). Hybrid tray: either two nano-SIMs or one nano-SIM + eSIMs.
• 📱 Mid-segment (Redmi Note 12/13, POCO X5): Hybrid tray: nano-SIM + nano-SIM or nano-SIM + microSD. No eSIM support (except POCO F5 Pro). Maximum microSD capacity is 1 TB.
• 📱 Budget models (Redmi A2, POCO C55): Nano-SIM only (no microSD and eSIM). Support 4G, but not 5G.

For accurate information on your model:

1. Check the official specifications on Xiaomi’s website.
2. Use the model + "SIM card slot" or "microSD support".
3. Note the region: for example, the Xiaomi 13T Pro for China may not support eSIM, whereas the global version does.

If you are buying a phone from hand, be sure to check:

• 🔍 The condition of the tray (whether there is backlash or damage).
• 📶 Both SIM- cards (if the phone is two-symbol)
• 💾 Reading a microSD (insert a test card).

FAQ: Frequent questions about connecting cards to Xiaomi