How to choose the right way SIM-dispatcher SMS Xiaomi Redmi smartphones: Guide 2026

Why choose? SIM-card SMS Xiaomi Redmi

Sending and receiving SMS On Xiaomi Redmi smartphones, it seems like a simple task — until you run into problems: messages do not leave, come with a delay or disappear altogether. SIM-Not only in the format (nano, micro or eSIM), but also in the technical limitations of the operator, support 2G/3G/4G network, as well as in the settings of the device itself.

In this article, we will discuss how to choose SIM-Xiaomi Redmi card including Redmi Note 12/13, Redmi 10/11, POCO X5 and others, so that SMS We've been working smoothly:

• 🔹 Formats SIM — Which are suitable for modern Redmi and which are a thing of the past.
• 🔹 Communications operators – who is better at delivering SMS 2026.
• 🔹 Technically, why VoLTE and 5G may interfere SMS.
• 🔹 Settings. MIUI — where to include priority SMS Avoid conflicts with messengers.

We will pay special attention to the problem of gray" SIM-Cards (re-registered or purchased from resellers) that are often blocked SMS-Traffic due to carrier restrictions, and how to check the compatibility of your Redmi card before you buy it.

Formats SIM-What is the best map for Xiaomi Redmi

Modern Xiaomi Redmi smartphones (starting with the 2019 Redmi Note 8) only support nano-SIM (4FF) and eSIM (in separate models).

• 📱 Nano-SIM (4FF) — The standard for all Redmis of recent years, but if you use Redmi, 9A or Redmi 10A, Note: The tray is not compatible with micro-SIM (3FF) adaptless.
• 🔄 Combi-SIM – some operators (such as Tele2) issue cards that can be broken down to nano format, but poor-quality pruning can damage contacts, leading to read errors. SIM.
• 📲 eSIM – supported only in flagships (Redmi) K60, POCO F5 Pro) and some models for the European market. 12C) She's gone.

To avoid problems, check the size. SIM-So, for example, in the Redmi Note 11 Pro.+ Hybrid tray: either two nano-SIMs or one nano-SIM + If you plan to use two cards, make sure that both are nano-format.

⚠️ Attention: If after installation SIM-Xiaomi Redmi cards are making a mistake "SIM-Card not supported", check: "Are the contacts of the card damaged (especially if you cut it yourself) "Are your Redmi model supports operator frequencies (for example, Yota only works on networks) 4G, What can conflict with old models).

Which carrier is better for SMS on Xiaomi Redmi: comparison 2026

Not all operators are equally good at delivering SMS. According to Roskomnadzor for 2023, leaders in stability SMS-MTS and Beeline became traffic traffic, and virtual operators (Tinkoff Mobile, SberMobile) became outsiders:

If you are critically interested in SMS reliability (for example, for two-factor authentication or bank notifications), choose MTS or Beeline. Virtual operators (Tinkoff Mobile, SberMobile) are characterized by delays of up to 5-10 minutes, as they use the Big Four infrastructure with lower priority.

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Before the purchase SIM-Check the coverage of the operator in your area on the Speedtest Cell Towers website. for example, in rural areas, MegaFon may not have 2G-network, which will lead to problems with SMS.

Why SMS doesn’t work on Xiaomi Redmi

Even with the right one. SIM-map and reliable operator SMS Xiaomi Redmi may not be available:

1. Lack of 2G support – many operators (especially Tele2 and Iota) disable GSM (2G) networks, which traditionally transmit SMS. If your Redmi does not support VoLTE (voice and SMS over 4G), messages will not reach.
2. Conflict with VoLTE/VoWiFi — firmware MIUI (especially on the Redmi Note 10/11) Enabled VoLTE blocks normal SMS. Solution: Turn off VoLTE in Settings → SIM-maps and mobile networks → [yours SIM] → Voice calls.
3. Operator restrictions — “gray" SIM-Cards (bought from dealers or registered with other people's data) are often blocked SMS-Check the status of the card through USSD-request: *111*0887# (for MTS) or similar commands for other operators.

Another common problem is messaging, and if you use WhatsApp or Telegram as your primary means of communication, MIUI can automatically redirect SMS to those apps, so they don't show up in the standard Messages app.

Open the Settings. → Annexes → Communications → Notifications|Turn off the "Redirect" option. SMS messenger"|Check if the numbers are added to the blacklist (Settings) → SIM-map → Number locking)|Reboot your phone after the changes-->

⚠️ Note: If after the update MIUI stopped coming SMS, Reset network settings: Go to Settings → SIM-maps and mobile networks → [yours SIM] → Reset the network settings. Enter PIN-code SIM-Reboot the device. This helps 80% of the time after a firmware update.

How to Check Compatibility SIM-Maps with your Xiaomi Redmi model

Before buying a new one SIM-Make sure it is compatible with your Xiaomi Redmi:

1. Check frequency support: 📡 For SMS frequency-critical 2G (GSM 900/1800 MHz). 📡 For VoLTE (SMS through 4G) — LTE Band 3/7/20 (1800/2600/800 You can find out the supported frequencies of your model on the Kimovil website (enter the name of the Redmi model).
2. Specify the type SIM-tray: 🔧 Redmi Note 12, Redmi 11 Prime – hybrid tray (2 nano-SIM or 1 nano-SIM) + microSD). 🔧 Redmi 10A, Redmi 9C — Nano-SIM only (without microSD support). 🔧 POCO X5 Pro – eSIM support (check in Settings) → The phone. → Specifications).

If you are buying a used Xiaomi Redmi, be sure to check:

• 🔍 Does it work? SIM-tray (sometimes it breaks when the card is incorrectly inserted).
• 🔍 Is there a "only" item on the menu? 4G" (Settings → SIM-map → Preferred type of network, if any, but SMS Not working – the problem is lack of support 2G/3G.

Xiaomi Redmi setup for stable SMS operation

Even with the right one. SIM-map-and-operator SMS It may not work properly due to the settings. MIUI. Follow this checklist for optimization:

1. Set Network Priority for SMS: Go to Settings. → SIM-maps and mobile networks → [yours SIM] → Preferred type of network. 3G (if VoLTE is not supported) or 4G/3G/2G (motor-car).
2. Turn off battery optimization for Messages: Go to Settings → Applications → Application Management → Messages → Battery. Select Unlimited.
3. Set up the notification center: In Settings → Notifications → Messages, turn on the option “Show notifications”. Turn off “Notification Grouping” to avoid missing important SMS.

If you use two of them SIM-Make sure that the card is the main one (for the SMS) It is in the first place in the settings:

Settings → SIM-maps and mobile networks → SIM-map SMS

By default, MIUI can send messages from any card, which leads to confusion.

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If SMS still doesn't work after all the settings, try resetting the network to factory settings, which will remove saved Wi-Fi points and passwords, but often solves mobile phone problems.

Frequent Mistakes and How to Avoid Them

Xiaomi Redmi users often encounter common errors when working with SMS. Here are the most common ways to solve them:

Pay special attention to blocking SMS from spam, MIUI has a built-in filter that can mistakenly send important messages to spam, to turn it off:

Settings → Messages → Spam filter → Disable

⚠️ Note: If you use Xiaomi Redmi with custom firmware (like LineageOS or Pixel Experience), problems with the SMS This can be due to the lack of proprietary libraries to work with the modem, in which case only the reflashing on the official screen will help. MIUI.

FAQ: Answers to Frequent Questions