How to switch correctly SIM-Map on the phone Xiaomi: instructions for all models

Replacement or switching SIM-Xiaomi cards on smartphones seem to be a simple procedure, but in practice users face nuances: from a broken network after installation to errors «SIM-This is especially true for modern models with hybrid slots, where you have to choose between the second one. SIM In this article, we will examine all the ways of switching, from physical replacement to software setting network priority, and also consider typical errors and their solutions.

It is important to consider that the process differs depending on the model: for example, Xiaomi 13 Pro supports two nano-SIM, and Redmi Note 12 is a hybrid slot, where the second one is a hybrid slot. SIM It competes with microSD, and we'll describe each case in detail, including the features for dual-devices. IMEI support 5G. If you are planning to use two SIM-card at the same time or just want to transfer the number to a new phone - here you will find the current instructions for MIUI 14 and newer.

Preparation for switching SIM-maps: what you need to know

Before extracting or installing SIM-map, check out a few key points.First, determine the type of slot in your Xiaomi:

• 📱 Two separate nano-SIMs: Support two active cards at the same time (e.g. Xiaomi 14 Ultra or X-rays). POCO F5 Pro).
• 🔄 Hybrid slot: the second slot is combined with microSD (typical for Redmi) 10C or POCO M5). You'll have to choose between the second. SIM memory-card.
• ⚡ eSIM + physical SIM: Some flagships (e.g. Xiaomi) 13T Pro) support virtualization SIM, In Russia, this function is often blocked.

Second, make sure that the new SIM-If you switch from one card to another (for example, from MTS to Tele2), you may need to PUK-Also check if your model supports the desired frequencies – some Xiaomi for the Chinese market do not work with Russian operators in the 800 MHz band (Band 20).

Finally, prepare the tools:

• 🔧 Paperclip or needle to extract the tray (goes complete with the phone).
• 📏 Pruning pattern SIM (If you have an old micro-SIM).
• 🧲 Magnet or tweezers – help if the tray is stuck.

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If you have Xiaomi with support 5G, set up the main SIM-Slot 1 card – it usually supports more ranges than slot 2.

Step-by-step: how to physically change SIM-map

Replacement SIM-The cards on most Xiaomi models are the same, but there are nuances for devices with a retractable tray (for example, Mi 11) and a removable back cover (rarely, but found in old Redmis). 4A). Let’s take a look at a universal algorithm:

1. Turn off your phone (required!) to avoid damaging your contacts. SIM-Press and hold the power button, then select Turn off.
2. Find a tray for SIM-The card is usually on the top or side of the card, and on newer models (e.g. Xiaomi 13 Lite), the tray can be on the right, next to the volume buttons.
3. Insert the paperclip into a small hole next to the tray and press until you click. The tray will extend a few millimeters - gently pull it out.
4. Place it. SIM-The card is in the tray, the contacts are down, aligning the bevelled corner of the card with the slot angle. SIM, Make sure they don’t overlap each other.
5. Put the tray back to the end. Make sure it sits straight -- if the tray is skewed, SIM-The card won't be recognized.

After turning on the phone, it may take up to 2 minutes to recognize SIM-If the network is not up after 5 minutes, check it out:

• 🔄 Correct installation (turn the map over).
• 📶 Network settings: go to Settings → SIM-maps and mobile networks → [yours SIM] → Network type and select 4G/5G (recommended).
• 🔧 Contact status – wipe them with a lasticle if necessary.

Setting up SIM-card MIUI: priority, internet, calls

After the physical installation SIM-The map needs to be configured correctly in the system. MIUI This is done through the Settings menu. → SIM-Maps and mobile networks:

• 📞 Designate SIM for calls: Select which card will be used by default for outbound calls.
• 🌐 Choose. SIM for mobile internet: if you have two cards, you can assign a primary one for data (for example, with unlimited rates).
• 🔄 Switching data: the phone will automatically use the SIM, better-signal.
• 📵 Turn off one of them. SIM: This is useful if the second card is only needed. SMS.

To set the priority:

1. Go to Settings. → SIM-maps and mobile networks.
2. Choose. SIM-map, SIM 1).
3. Press the name. SIM-cards and give it an understandable name (for example, "Worker" or "Personal»).
4. In the Network Type section, set 4G/5G for maximum speed.
5. In Call Settings, select which SIM will be used by default.

If you have problems with the internet, check it out. APN-setting:

1. Go to Settings. → SIM-maps and mobile networks → [yours SIM] → Access points (APN).
2. Click on the three dots in the top right corner and select Reset to default values.
3. If this doesn’t work, add APN manually (options can be found on your carrier’s website).

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After the shift SIM-I've lost the Internet, restart the phone first, and 80 percent of the time, it solves the problem without any additional settings.

Features for models with hybrid slot (SIM + microSD)

In phones with a hybrid slot (for example, Redmi Note 11 or POCO X5) The second slot is paired with a memory card connector, which means you can use either the second slot. SIM-It's a card, it's a microSD, but it's not both:

Important: When you swap hot (without turning off your phone), the hybrid slot may not work. Always turn off the device before removing/installing the cards. Also remember that some models (such as the Redmi 9A) do not support microSDs larger than 512 GB, even if the slot is physically fit.

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If you need both a second SIM and additional storage, consider a USB-OTG flash drive adapter or cloud storage (such as Mi Cloud).

Solving Typical Problems After SIM Switching

Even with the right installation SIM-Xiaomi users face errors. Let's look at the most common and ways to fix them:

⚠️ Note: If after replacement SIM-The phone stopped seeing both networks, check if the contacts in the slot are bent.

• 🚫 Mistake «SIM-Card not found": Causes: improper installation, contact oxidation, operator incompatibility. Solution: reinstall SIM, wipe the contacts with a smoother, check the frequency support of your model.
• 🌐 No mobile internet: Reasons: incorrect APN-settings, data disabled, operator problem. Solution: reset APN, Enable Mobile Data in the Settings SIM, restart the phone.
• 📵 The calls are not working on one of them. SIM: Causes: priority conflict, network login error. Solution: in Call Settings, assign this one SIM call-in.
• ⚡ Quick battery discharge after shift SIM: The reason is, the phone is constantly searching the network because of the weak signal. Solution: turn on Flight Mode for 30 seconds, then turn off.

If the problem persists, try resetting your network settings:

1. Go to Settings. → SIM-maps and mobile networks → Resetting network settings.
2. Confirm the action (you will need to enter the PIN-code of the lock screen).
3. After restarting, reset the SIM-map.

Switching between SIM-card-free

If you have two already installed SIM-cards, but you want to temporarily disable one of them or change priorities, you can do this directly in the settings MIUI It's convenient, for example, if you're not taking the tray out:

• 🏢 Use one. SIM for work and another for personal calls.
• 🌍 Traveling and want to switch to a local operator.
• 💰 Save traffic by turning off mobile internet to the second SIM.

To turn off one of the SIM-map:

1. Go to Settings. → SIM-maps and mobile networks.
2. Choose. SIM-map you want to deactivate.
3. Translate the slider Include SIM-map off..

To change the SIM for the Internet:

1. In the same menu, click on Mobile Data.
2. Choose. SIM-map that will be used for data transmission.
3. Activate Automatic Data Switch if you want your phone to choose the best network.

To switch between SIMs during the call:

• Dial a number in the phone app.
• Click on the icon. SIM-map next to the call button.
• Choose which SIM to make the call with.

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V MIUI 14+ The function "Smart switching" appeared SIM», which automatically selects the card with the best signal for calls. → SIM-map → Smart switching.

Tips for Xiaomi owners with 5G support

If you support Xiaomi 5G (for example, Xiaomi 12T, POCO F4 GT or Redmi K50), switch-over SIM-The cards need to take into account several nuances:

• 📶 Slot 1 usually supports 5G: In most cases, the first slot is compatible with 5G, And the second one is just with 4G. Please specify this in the specifications of your model.
• 🔄 Automatic switching to 4G: signal 5G weak, the phone can switch to 4G. It is normal and does not require intervention.
• ⚡ Increased battery consumption: 5G If the battery goes down too fast, limit use. 5G In Settings → SIM-map → Type of network → Only 4G.

To check if it works 5G yours SIM-map:

1. Make sure your tariff supports 5G (check with the carrier).
2. Go to Settings. → SIM-maps and mobile networks → [yours SIM] → Type of network.
3. Choose 5G (if the option is available).
4. Check the network indicator in the status bar – a 5G icon should appear.

If 5G is not working despite phone support:

• 🔧 Update the firmware to the latest version MIUI.
• 📡 Check the cover. 5G in your region (coverage maps are available on the operators’ websites).
• 🔄 Restart your phone or reset your network settings.

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On some models (e.g. Xiaomi 13 Pro), you can force 5G Only mode to be enabled even if the signal is weak. Enter #4636## in the engineering menu, then select Phone Information → Install preferred network type → NR Only. Be careful – this can worsen communication in areas with poor 5G coverage!

FAQ: Frequent questions about switching SIM to Xiaomi