Registration SIM-Maps in Xiaomi phone: from installation to network connection

You just purchased a new Xiaomi smartphone and faced the need to register SIM-Or you moved a SIM from an old phone, but the network never came up? In this article, we'll go through all the steps, from the physical installation of the card to the software activation in the operator's networks. SIM-cards (nano, micro or eSIM) and even from a mobile operator.

Many users mistakenly think that it is enough to just insert a SIM into the tray and the phone will work immediately, but in practice, you often need to perform additional adjustments: select a network profile, update settings. APN We'll look at all the scenarios, including solving typical problems like no signal or error"SIM-card not registered online".

We will focus on models with two support SIM-maps SIM), where it's important to set your network priorities right, and also for eSIM phones, where the activation process is fundamentally different. MIUI 14/15 or a newer version, some menu items may be different – we have taken this into account in the instructions.

1. Preparation SIM-Maps before installation in Xiaomi

Before you put it in. SIM-card to phone, make sure it's compatible with your Xiaomi model.Most modern smartphones (like the Redmi Note 12 Pro)+, POCO F5 Xiaomi 13T) Only nano-SIM supports, and if you have an old-style card (micro or standard), you will have to cut it or replace it in the cabin.

Also check:

• 📱 Type SIM-maps: physical (nano/micro) The latter are supported only in flagship models such as Xiaomi. 13 Ultra or Mix Fold 3.
• 🔄 Operator activation: Some SIMs (e.g. from Tele2 or Yota) require prior activation via a website or call.
• 📡 Network support: if the phone is purchased abroad (e.g. global version of Redmi) K60), Make sure it supports your operator’s frequencies (LTE Band 3, 7, 20 for Russia).

If you use two of them SIM-Note that the card is in Dual mode. SIM One of them can only work on networks. 2G/3G, Even if the phone supports 4G/5G. This is a hardware limitation that cannot be circumvented software. Read more about compatibility in the table below.

⚠️ Attention: If you insert SIM-A card from another operator to a phone linked to a particular network (for example, a device from MTS or Beeline with a proprietary firmware), may need to be unlocked. In this case, contact the operator or reset settings through Settings → The phone. → Resetting settings.

Physical installation SIM-smartphone-card

Installation process SIM-The card depends on the design of the phone. In most Xiaomi models, the SIM tray is on the upper or side edge. To extract it, you will need a paper clip or a special key (comes with it:

1. Turn off the phone (recommended, but not necessarily for most models).
2. Find a hole for the tray SIM-It's usually marked by a small dot or an inscription. SIM.
3. Put the paperclip in the hole and press until the tray is pushed out.
4. Place it. SIM-card in the tray contacts down (on most trays there is a diagram).
5. Carefully push the tray back before the click.

For models with a hybrid slot (for example, Redmi) 10C or POCO M5), where the second slot is combined with a memory card, note:

• 🔄 You can use either two nano-SIMs or one. SIM + microSD.
• 📱 If you put two in. SIM-The microSD slot will be blocked.
• ⚡ With microSD, read/write speeds can be reduced if both are active at the same time. SIM-map.

Turn off the phone (optional)|Check the type SIM-map (nano/micro)|Find a paper clip or key for the tray|Ensure there is no damage to contacts SIM|Correctly orient the map in the tray-->

Turn on the phone after installation. SIM-The card is new, it may take a few minutes to activate it on the operator's network, and a network search notification or request will appear on the screen. PUK-code (if the SIM has been blocked).

⚠️ Warning: Do not use force when installing the tray! if it does not enter easily, check if installed correctly SIM-Forced pressure can damage the contacts, and the phone will not recognize the SIM. In case of a breakdown, it will cost 1,500-3,000 rubles (replace the connector).

3. Registration SIM-card

After installation SIM-The card displays the message No network, only emergency calls or SIM-The card is not registered, you need to manually register with the operator's network:

1. Go to Settings. → SIM-maps and mobile networks.

2. Choose yours. SIM-card (if two of them).

3. Slip on the item Network Choice or Network Operators.

4. Enable Auto Select and wait 30 to 60 seconds. If the network does not appear, select Manual Search and wait for the list of available operators.

5. Select your carrier from the list. If there is none, try updating the list or restarting the phone.

If manual registration does not help, check the following points:

• 📶 Coverage area: You may be in a place with a weak signal. Try moving closer to the window or outdoors.
• 🔄 APN-settings: incorrect Internet access settings can block registration.
• 🔒 Lockdown IMEI: If the phone is purchased from hand, check if it is not on the operator’s blacklist. IMEI. Find out. IMEI You can, type *#06#.

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If the phone can't see SIM-Once installed, try to wipe its contacts with a soft eraser. Oxidation or contamination can disrupt the connection.

For eSIM models (e.g. Xiaomi 13 Lite or Mix Fold 2), the process is different:

1. Go to Settings. → SIM-maps and mobile networks → Add a mobile network.
2. Select Download. SIM-map.
3. Scan it. QR-code provided by the operator or enter data manually.
4. Confirm activation (may be required) SMS coded).

4.Tune in. APN for access to the Internet and MMS

Even if SIM-The card is registered on the network, without the correct APN-You will not have access to the mobile internet or MMS. Usually, parameters. APN They're automatically installed, but sometimes you have to manually type them:

1. Open Settings. → SIM-maps and mobile networks.

2. Choose yours. SIM-Map and tap the Access Points (APN).

3. If you have saved profiles, select the one you want. If you don't, click Add or +.

4. Enter your operator's parameters, below are the current data for the main Russian operators (2026):

After you enter the settings, save your profile and restart your phone. If the Internet is not working, check:

• 🔄 Activation of the service: some tariffs require the connection of the option "Mobile Internet" through USSD-command (e.g. *111# for MTS).
• 📱 Network mode: in settings SIM-pick out the cards 4G (preferably 3G, if 4G unstable.
• 🔒 Restrictions: If the phone is purchased abroad, it may have activated a regional unit (e.g., in Chinese versions of Redmi).

5. Solving registration problems SIM-map

If after all the manipulations SIM-The card is still not registered online, use our diagnostic instructions:

Problem 1: The phone is writing SIM-card not registered on the network or no service.

• 🔄 Reboot your phone in flight mode: turn it on for 30 seconds, then turn it off and check the network.
• 📱 Check if the modem or access point is activated – they can block registration.
• 🔧 Update your phone firmware: go to Settings → The phone. → Updating the system.

Problem 2: SIM-The map is determined, but there is no Internet.

• 🌐 Make sure that mobile data is enabled in the notification curtain or in the settings.
• 🔄 Check your account balance – you may have run out of money or internet traffic.
• 📡 Try to manually select the type of network: 3G or 4G (customized SIM-map).

Problem 3: The phone asks PUK-code.

• 🔐 PUK-the code is indicated on the plastic carrier to which it was attached SIM-If it's not available, call the operator.
• ⚠️ Enter the code carefully: after 10 wrong attempts SIM-The card is locked forever.

If none of these methods helped, the problem may be the problem. SIM-To rule out a hardware malfunction, try inserting the SIM in another phone. If it doesn't work there, ask the operator to replace it.

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90% of cases of registration problems SIM-The cards are solved by resetting the network settings. → System and device → Resetting settings → Reset the network settings. After that, the phone will restart, and all network settings will return to the factory.

6. Features of registration SIM-cards in Xiaomi phones with MIUI 14/15

In the latest versions of the firmware MIUI (14 and later) the mobile network's settings interface has changed, so some of the options are hidden deeper, and some of the features are automated:

New functions:

• 🔄 Automatic setup APN: first-installation SIM-The system loads the operator's parameters (does not work with all operators).
• 📊 Network monitoring: in settings SIM-Maps appeared graph signal strength and Internet speed.
• 🔒 Safe Network Mode: Option to block suspicious connections (default disabled).

How to find hidden settings:

• To open the advanced network settings, dial in the phone application ##4636## and select Phone Information.
• For discharge IMS-settings (relevant to VoLTE) go to Settings → SIM-maps and mobile networks → Additionally. → Reset IMS.

V MIUI 15 also has a function called "Double". 4G" two-model SIM-It allows both SIMs to work on networks (for example, Xiaomi 13 Pro). 4G simultaneously, but can reduce battery life by 10 to 15 percent:

1. Go to Settings. → SIM-maps and mobile networks.
2. Slip on the double. 4G.
3. Turn on the option and select which one SIM-The map will be the main one for the Internet.

⚠️ Note: In some regions (e.g. remote areas) the function "Dual" 4G" This can cause a loss of network on one of the SIM-If you encounter this problem, turn it off and use standard mode (4G + 3G).

7. Registration of eSIM in Xiaomi phones: a step-by-step guide

If your Xiaomi supports eSIM (e.g. Xiaomi) 13 Lite, Mix Fold 2/3 or POCO F5 Pro), the virtual activation process SIM-It's different from the physical map. Here's how to do it:

Step 1: Getting an eSIM from the operator

• 📱 Contact the operator (for example, MTS, MegaFon or Beeline) and request eSIM. QR-manual.
• 🔐 Make sure your rate supports eSIM – some budget rates may not provide this option.

Step 2: Activate eSIM on your phone

1. Open the Settings. → SIM-maps and mobile networks → Add a mobile network.
2. Select Download. SIM-map.
3. Scan it. QR-Operator code or manually enter data (EID, activation).
4. Confirm the installation and wait. SMS operator-certified.

Step 3: Set up the eSIM

• 🔄 Go to Settings. → SIM-Maps and mobile networks and select the eSIM that has just been added.
• 📶 Enable Mobile Data and Configure APN (If not automatically loaded).
• 🔒 Set eSIM as the primary for calls and SMS (if you use two SIM-map).

Important: One eSIM may contain multiple profiles (for example, for work and personal use), but only one can be active at the same time. To switch between profiles, go to the eSIM settings and select the one you want.

8. Frequent mistakes and how to avoid them

Even experienced users sometimes face problems when registering. SIM-Xiaomi maps. We've collected the most common errors and ways to prevent them:

A few more tips to avoid problems:

• 🔄 Always restart your phone after installing a new one. SIM-Cards – this speeds up registration on the network.
• 📱 Don’t use Chinese firmware on global models – they can block local networks.
• 🔒 If you are buying Xiaomi from hand, check it out. IMEI on imei.info - the phone may be blacklisted.

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If you travel frequently, save it on your phone. USSD-For example, for MTS it's *100#, for Beeline it's *102#. This will help quickly diagnose problems with the operator. SIM-roaming-card.

FAQ: Answers to Frequent Questions