How to choose the right way SIM-Map for calls on Xiaomi smartphones: from nano-SIM to eSIM

Choice SIM-Xiaomi seems like a simple task, as long as you don't have problems: slots don't fit, network doesn't catch, calls are interrupted, POCO or flagship Xiaomi 14 have nuances: from support for eSIM to the limitations on the operation of two Sims at the same time. SIM-The card is needed by your model, how to avoid errors during activation and why it is sometimes better to abandon virtual numbers.

We have analyzed the technical specifications of 50.+ Xiaomi models (from the budget Redmi) A2 Previous articlePremium Mix Fold 3, surveyed mobile operators and identified 5 critical mistakes that users make when choosing SIM-For example, many people do not know that in the Xiaomi 13 Ultra, the second slot only supports nano-SIM or eSIM, but not both at the same time. Tele2 Tinkoff Mobile may not work with VoLTE on some firmware MIUI.

At the end of the article — FAQ The 15 most common questions (including "can you cut the Micro-SIM under the Nano itself" and "why the smartphone does not see the second SIM!

1. What types SIM-Maps support Xiaomi smartphones in 2026

Xiaomi devices work with three main types SIM-map:

• 📱 Nano-SIM is a standard physical format (12.3×8.8 It is supported by all models without exception, suitable for single- and dual-sim phone.
• 📲 eSIM - electronic SIM-A card built into the device's chip, available only in flagship models (starting with Xiaomi 12 and X-rays). POCO F4).
• 💳 Virtual numbers – a service from banks or operators (for example, Tinkoff Mobile, SberMobil), tied to the main SIM-It works as an extra line, but with limitations.

Important: Hybrid slots (where the second slot is combined with a memory card) are still found in budget models (for example, Redmi). 12C or POCO M6). This means that you cannot use two at the same time. SIM-Check the specifications of your model on the official Mi.com website or in documents.

⚠️ Note: If your Xiaomi is released before 2020 year (e.g. Redmi Note) 8 or Mi 9), It may not support VoLTE on virtual numbers, which means that calls will be made through legacy networks. 2G/3G, Check for VoLTE support in settings: Settings → SIM-maps and mobile networks → [yours SIM] → Voice communications.

2. How to determine which slot to SIM-Maps in your Xiaomi

Before the purchase SIM-maps check the configuration of slots in your model. Xiaomi has three options:

1. Two separate slots for nano-SIM (e.g. Xiaomi 13 Pro, POCO F5 Pro).
2. Hybrid slot (second) SIM MicroSD, for example, Redmi Note 12).
3. One slot for nano-SIM + eSIM (e.g. Xiaomi 14, Mix Fold 3).

To find out the exact configuration:

• 🔍 Look at the box of the device – there is usually a slot scheme.
• 📱 Go to Settings. → The phone. → Specifications (in some models, slot information is listed there).
• 🌐 Find your model on the Mi.com website in the section "Technical specifications".

If you are planning to use two physical SIM-Make sure your model is not hybrid. POCO M5s When installing a microSD second SIM It is a common cause of complaints about a “missing network".

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If you travel frequently, choose a model with two full-fledged slots for nano-SIM (for example, Xiaomi). 13T or Redmi K60). This will allow the use of local SIM-card without loss of primary number.

3. Nano-SIM vs eSIM: Which is better for Xiaomi in 2026

The choice between a physical nano-SIM and an electronic eSIM depends on your tasks, and let’s look at the pros and cons of each option using popular Xiaomi models.

Advantages of nano-SIM:

• ✅ Compatible with all Xiaomi models, including older ones (e.g. Redmi Note 9).
• ✅ Easy replacement – you can quickly change the operator or fare by simply inserting a new card.
• ✅ Support for two Sims at the same time (unless the slot is hybrid).

The advantages of eSIM:

• ✅ There is no risk of losing or damaging the card.
• ✅ Quick activation through QR-code (no need to visit the operator’s salon).
• ✅ Support for multiple profiles (e.g., work and personal number on the same device).

However, eSIM has serious limitations:

• ❌ It is not supported by all operators (in Russia it fully works only at MTS, Beeline and Tele2).
• ❌ When changing your smartphone, you will have to transfer the profile (sometimes it takes up to 24 hours).
• ❌ In some Xiaomi models (e.g. Xiaomi) 12T) The eSIM only works in the first slot.

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If you change smartphones often or use devices of different brands, nano-SIM remains a more versatile solution. eSIM is suitable for those who are permanently "tied" to the same gadget and operator.

To check for eSIM support in your Xiaomi model:

1. Open the Settings. → SIM-maps and mobile networks.
2. If there is a option Add mobile tariff or eSIM, your device supports the technology.
3. Make sure your carrier provides eSIM (a list of supported operators is usually on their sites).

4. Virtual numbers: should you use in Xiaomi

Virtual numbers from banks (Tinkoff Mobile, SberMobil) or operators (Tele2 "Additional room" seems to be a convenient solution: do not need to buy a second number. SIM-The card is often cheaper, but in practice, Xiaomi users face problems:

• 📞 VoLTE issues: Virtual numbers may not support voice calls 4G, why the calls are made 2G poor-quality.
• 🔄 Switching delays: if the main SIM The virtual number may not be receiving calls.
• 📵 Limitations on SMS: Some services (banks, messengers) do not accept SMS virtual-numbered.

Before activating the virtual number, check:

Make sure your model supports VoLTE (in settings) SIM-map)

Check the list of supported devices on the operator / bank website

Test calls on different networks (4G/3G/2G)

Turn off "traffic savings" in the settings MIUI (Settings → Connections and sharing → Saving traffic)

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For example, in Xiaomi Redmi Note 11 Pro, virtual numbers from Tinkoff Mobile work stably if VoLTE is enabled and the Call Quality Improvement function is disabled (it can conflict with the virtual line).

⚠️ Note: If you use Xiaomi with custom firmware (like LineageOS or Pixel Experience), virtual numbers may not work at all. IMS (Technology responsible for VoLTE and ViLTE).

5. How to activate SIM-Map in Xiaomi: step-by-step instructions

The activation process depends on the type SIM-Let's look at all the options.

Nano-SIM activation:

1. Put it in. SIM-card to slot (if the smartphone is turned on, you may need to reboot).
2. Wait for the "new" notification to appear SIM-map found".
3. Go to Settings. → SIM-maps and mobile networks → [yours SIM].
4. Select Activate (if required) or manually configure network settings.

Activation of eSIM:

1. Get it. QR-code from the operator (usually sent to an email or personal account).
2. Go to Settings. → SIM-maps and mobile networks → Add a mobile fare.
3. Select "Scan" QR-code" and scan it.
4. Confirm activation (reboot may be required).

Activation of the virtual number:

1. Install an operator/bank app (such as My Tele2 or Tinkoff).
2. Activate the service in your personal account.
3. In the settings SIM-Select the virtual number as the primary number for calls.

If SIM-card not activated:

• 🔄 Reboot your smartphone.
• 📶 Check if Automatic Network Selection is enabled in the settings SIM.
• 📞 Call the operator - maybe, SIM-The card is not linked to your passport (relevant for new rates).

6. Frequent problems with SIM-Xiaomi cards and how to solve them

Even after the correct installation SIM-Xiaomi users are facing typical problems, and here are the most common and ways to solve them:

If after all the manipulations the problem remains, try resetting the network settings:

1. Go to Settings. → SIM-maps and mobile networks → Resetting network settings.
2. Confirm the reset (this will remove saved Wi-Fi networks and passwords).
3. Reboot your smartphone.

⚠️ Note: On some Xiaomi models (e.g, POCO X3 Pro) after resetting the network settings, the VoLTE option may disappear. To return it, update the firmware to the latest version or manually activate VoLTE through the engineering menu (code ##4636##).

7.How to Choose a Xiaomi Operator: Comparison of Fees and Coverage

The choice of the operator affects not only the cost of calls, but also the stability of work. SIM-We analyzed the tariffs and coverage of the four largest Russian operators (data as of June 2026) taking into account the features of Xiaomi devices:

• 📡 MTS: Best coverage 4G/5G, full support for eSIM and VoLTE on all Xiaomi models.
• 📶 Beeline: Good price/quality ratio, but eSIM is only available at rates from 600₽/In some regions, there is a weak coverage 5G.
• 📞 Tele2: The cheapest tariffs, but problems with VoLTE on older Xiaomi models (until 2021 release).

For Xiaomi owners with support 5G (for example, Xiaomi 13T, POCO F5) We recommend MTS or MegaFon, which have the widest coverage of the new network. If you want to save money, Tele2 offers rates with unlimited calls from 300₽/Check out VoLTE support for your model.

Check the coverage of the operator in your region can be on the maps:

• MTS: mts.ru/pokritie
• Beeline: beeline.ru/maps
• Television2: tele2.ru/coverage
• MegaFon: megafon.ru/coverage

8. Top.-5 choice-making SIM-maps for Xiaomi

Analysis of requests to service centers and forums (including: 4PDA Mi Community showed that Xiaomi users often make the following mistakes:

1. Buying a Micro-SIM instead of a Nano-SIM and trying to cut it with scissors, which causes contact damage and network instability, so you can either use an adapter or order a Nano-SIM from the operator.
2. Ignoring VoLTE support. Without this feature, calls will pass through 2G/3G, Solution: Turn on VoLTE in your settings. SIM-map.
3. Installation of two SIM-Some models (e.g. Redmi) are not compatible. 10C) They don't support the two of us. SIM net 4G Solution: Check the model specifications on Mi.com.
4. Using eSIM without backup. When you reset or change your smartphone, your eSIM profile may be lost.Solution: Save QR-activation code in a safe location.
5. Rejection of updates MIUI. In new versions of firmware often fix bugs with recognition SIM-Solution: Regularly update the software through Settings → Updating the system.

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If Xiaomi doesn’t see the second one SIM-card, check first if you have a hybrid slot, 80% of the time the problem is solved by reinstalling the card or resetting the network settings.

Avoiding these mistakes will save you time and nerves. If you are in doubt about the choice, contact the operator’s consultant with the exact model of your Xiaomi (for example, Redmi Note 12 Pro).+ 5G).

FAQ: Answers to Frequent Questions