How to insert nano-SIM into the smartphone Xiaomi: a step-by-step guide with a photo

Installation SIM-The cards in Xiaomi smartphone are a seemingly simple procedure that even a child can cope with. But in practice, users face a lot of nuances: from a jammed tray to the wrong cropping of a map under the nano-SIM format. POCO, where the manufacturer uses hybrid slots or completely abandons physical SIM favoring eSIM.

In this article, we will discuss not only the basic installation instructions, but also rare cases: what to do if the tray is not extended, how to trim the Micro-SIM to nano without losing functionality, and why the smartphone does not see the card after installation. SIM-slot (for example, Xiaomi 13 Pro or Redmi Note 12) and features of working with the device 5G-All recommendations are based on official Xiaomi manuals and experience of service centers.

What are they? SIM-Maps support Xiaomi smartphones in 2026

Xiaomi devices work with three types of devices SIM-map:

• 📱 Nano-SIM (4FF) — standard format for all models released after 2016 Size of the year: 12.3 × 8.8 × 0.67 mm.
• 🔄 Hybrid slot – allows you to choose between a second Nano-SIM or microSD card (for example, in the Redmi Note 11 or the Redmi Note). POCO X5).
• 📲 eSIM - virtual SIM, Supported in flagships (Xiaomi 14 Ultra, Mix Fold 3) and some models for the European market.

Important: 5G-enabled models (such as the Xiaomi 12T or Redmi K60) require Nano-SIMs not released by the operator until 2020 to run on fifth-generation networks.

⚠️ Note: Xiaomi models for the Chinese market (denoted by the letter C in the name, for example, Redmi) K50C) There may be no physical slot for SIM — Just eSIM. Please check the package before buying!

What you need to install Nano-SIM

Before starting the installation, prepare:

• 🔧 A paper clip or a tool to extract the tray -- comes with the phone.
• 📇 Nano-SIM from the operator – if you have Micro-SIM or standard, it should be trimmed (instruction below).
• 🔍 Flashlight – will help to inspect the slot for dust or damage.
• 🧴 Alcohol wipes - for cleaning contacts SIM-cards and slots (if the phone does not see the card).

If you do not have the original tool from Xiaomi, do not use sharp objects (needles, pins) - they can damage the locking mechanism of the tray.

Step-by-step: how to insert Nano-SIM in Xiaomi

The installation process is the same for most Xiaomi, Redmi and POCO models, except for eSIM devices (which we will discuss separately).

1. Turn off your smartphone. It's a must-have -- hot SIM replacement can cause the communication module to crash.
2. Find a slot for SIM-In most models, it is located on the upper or lateral edge (for example, in Xiaomi 13 Lite on the right, in Redmi Note 10 on the top).
3. Put the paperclip in the hole before you click. The tray should extend 2-3 mm — pull it with your fingers.
4. Place the Nano-SIM in the tray with contacts down, cut an angle to the direction indicated on the tray (usually the picture is on the tray itself).
5. Carefully push the tray back before you click.
6. Turn on the phone and wait for the network to be determined (it can take up to 2 minutes).

Make sure the phone is off |

Check the integrity of the contacts on SIM-map|

Clean the tray of dust (if necessary)|

Use only Nano-SIM (without adapters)-->

After installation, the smartphone does not see SIM-If the problem persists, go to the "Problem Solving" section».

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In Xiaomi models with dual SIM support (like the POCO X5 Pro), the tray has two slots.Make sure the cards are installed in the right slots - sometimes the first slot supports 5G and the second slot only supports 4G.

Common Problems and Their Solutions

Even with the right installation, users are faced with errors, and let’s look at the typical cases and how to fix them:

1.The phone doesn't see. SIM-map

• 🔄 Restart the device – sometimes the communication module “hangs».
• 🧹 Clear the contacts. SIM-The dust or oxidation can disrupt the connection.
• 🔧 Check compatibility: some operators (e.g, Tele2) Nano-SIM activation is required for 5G.
• 📶 Update: In older versions MIUI There are some network definition bugs. Check the updates in Settings. → The phone. → Updating the system.

2.The tray is not extended or jammed

• 🔨 Don't force it, the tray mechanism is fragile. Try to gently swing the paperclip left and right.
• 📌 Use duct tape: glue the tape to the tray and pull. Suitable for models with recessed slot (e.g. Xiaomi Mix 4).
• 🛠️ Contact the service if the tray broke - self-repair can damage the motherboard.

⚠️ Warning: If the tray fell out of the grooves when extracted, don't try to insert it back by force.In Xiaomi 12S Ultra and similar models, the fixation mechanism consists of small springs that are easy to bend!

3. SIM-map is defined, but no network

The problem may be related to:

• 📡 Operator settings: check APN In Settings → SIM-maps and mobile networks → Access points (APN). For MTS and Beeline, it is usually enough to choose an automatic configuration.
• 🔒 Blocking. IMEI: If the phone is bought abroad, it can be locked under local carriers. IMEI at imei.info.
• 📵 Hardware malfunction: if the antenna module is damaged (for example, after a fall), diagnostics will be required.

How to trim Micro-SIM to Nano-SIM without losing functionality

If you only have a Micro-SIM, you can cut it neatly to Nano. Importantly, not all cards are trimmable.

• 🚫 Cards over 5 years old – their chip may be too big.
• 🚫 SIM contact-damaged.
• 🚫 Operator cards that do not support cropping (for example, some virtual operators).

For pruning, you will need:

• ✂️ Sharp scissors or a stationery knife.
• 📏 Line or pattern (can be printed here).
• 🖌️ Fill or nail file (for grinding edges).

Step-by-step:

1. Draw on Micro-SIM markup under Nano-SIM (size 12.3 × 8.8 mm).
2. Cut the plastic on the marking, leaving 1-1.5 mm of stock.
3. Grind the edges until the card is free to enter the Xiaomi tray.
4. Check the work – if the smartphone does not see the card, the contacts could be damaged when pruning.

⚠️ Attention: Circumcised SIM It may not work in devices of other brands (such as iPhone or Samsung), where trays have a different shape of grooves!

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If you're not sure about your skills, order a new Nano-SIM from the operator. Most providers (MTS, Beeline, MegaFon) give it out for free when you replace it in the cabin.

Features of SIM installation in models with eSIM

Xiaomi eSIM-enabled smartphones (such as the Xiaomi 13 or Mix Fold 2) allow you to use virtual SIM instead of physical.

• 🌍 Travellers – You can connect a local operator without buying a physical card.
• 📱 Owners of two numbers – eSIM takes up the second slot, making room for microSD.
• 🔒 Enterprise users: It is easier to manage tariffs remotely.

To activate the eSIM:

1. Get it. QR-code or activation code from the operator (for example, MTS or Beeline offer eSIM for individuals).
2. Go to Settings. → SIM-maps and mobile networks → Add a mobile fare.
3. Scan it. QR-code or enter the code manually.
4. Confirm activation – the smartphone will automatically connect to the network.

Importantly, not all operators in Russia support eSIM for individuals, as of 2026, virtual SIM is available:

• 📶 MTS – for subscribers of tariffs “Ultra” and “Trains for travel».
• 📶 Beeline - on request in communication salons (not all regions).
• 📶 MegaFon - only for corporate clients.
• 📶 Tele2 — Testing (check the support).

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If your carrier doesn’t support eSIM but you have a hybrid slot model (like the Redmi Note 12 Pro), use a physical Nano-SIM in the first slot – it usually has better 5G coverage.

Frequent User Mistakes and How to Avoid Them

Even experienced Xiaomi owners sometimes make mistakes when installing SIM.

1. The use of adapters (such as the Micro-SIM in the Nano adapter) leads to poor contact and overheating of the communication module. Xiaomi officially bans the use of adapters.
2. SIM inverted, the contacts should be down, and the cut angle should match the mark on the tray.
3. Ignoring software updates in older versions MIUI (Below 13) there are bugs with the definition of two SIM-mapping.
4. Cleaning contacts with abrasives (e.g., a rubber eraser) damages the spraying - use only alcohol and soft tissue.

Another common problem is the loss of a tray when cleaning or repairing, and you can replace it by:

• 🛒 Buying the original tray on the official Xiaomi website (the article is usually listed in the documentation).
• 🔧 In the service center – the masters will select a compatible detail.
• 📦 Using a tray from another model (for example, the tray from Redmi Note 11 is suitable for the use of a tray from a different model). POCO X4 Pro).

FAQ: Answers to popular questions