Replacement SIM-Xiaomi Redmi cards: instructions for all models (2018–2026)

Replacement SIM-Xiaomi Redmi cards seem like a simple procedure, but even here users face unexpected difficulties: the tray will jam, the new SIM is not determined, it turns out that the phone supports only nano-SIM, and you have a standard one on your hands. In this article, we will look at all the nuances, from tool preparation to network configuration after installation, and we will focus on the differences between models - for example, the Redmi Note 12 has a hybrid slot, and the Redmi has a hybrid slot. 10C Requires a mandatory reboot after replacement.

You will learn how to avoid common mistakes (such as damage to the tray contacts with metal objects) and what to do if the phone does not see the SIM after installation. SIM And eSIM, which is the best option for your Redmi model in 2026, and if you've never opened a SIM slot or you're afraid of breaking the latch, our step-by-step photos and video instructions will help you get it right the first time.

What are they? SIM-The cards support Xiaomi Redmi smartphones

All modern Redmi models (starting with the 2018 yearly use of nano-SIM format (4FF) — It is the most compact standard in size. 12.3 × 8.8 There are important nuances, though:

• 📱 Redmi 9/10/11 series and Redmi Note 8–12: two physical slots (hybrid slot for the second) SIM microSD).
• 🔄 Redmi K50/Note 12 Pro+: single-slot + Support for eSIM (Virtual SIM).
• ⚠️ Redmi 8A/9A/10A: only one slot for the SIM + microSD (no Dual) SIM).
• 🌍 Global and Chinese versions: China often blocks a second slot for local operators (for example, in the Redmi Note 11 Pro). 5G).

If you have an old-style SIM (mini-SIM or micro-SIM), you can cut it to nano format yourself or in the communication room. The main thing is not to damage the chip! Use a special template for this (see section below, Tele2 or Yota) give SIMs with a combined chip that can be broken for any format.

Important: Xiaomi does not support eSIM SIM on budget models (e.g. Redmi) 9C or Redmi A1). For a full list of compatible devices, see the table below.

Preparation for replacement SIM-Maps: Tools and precautions

Before you take out the tray, make sure you have everything you need. Here's the minimum set:

• 🔧 Paperclip or key to extract the tray (goes complete with the phone).
• 📱 New nano-SIM (if you cut the old one, check the chip for integrity!).
• 🔍 Flashlight (to inspect the slot for dust or damage).
• 🧴 Alcohol wipes (to clean contacts if the sim is not identified).

Turn off the phone (required for models up to Redmi Note 9)

Make sure the paper clip enters the tray hole without effort

Check the compatibility of the SIM with the operator (for example, MTS does not work in some Chinese versions of Redmi)

- Prepare tweezers (if the SIMKI chip is staggering in the adapter)-->

⚠️ Warning: Never use needles, pins or other sharp objects to retrieve the tray! This can damage the fixing mechanism. If the clip doesn't enter, check if the tray tongue is bent - straighten it gently with tweezers.

Another important point: on some models (for example, the Redmi Note 8 Pro), the tray is fixed not with a spring, but with a plastic tongue. If it is broken, the slot will stop holding the SIM. To avoid this, press the clip perpendicular to the body, not at an angle.

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If you do not have a brand key for the tray, use an unbended paper clip with a diameter of 0.7-0.8 mm. Too thick a paper clip can jam the mechanism.

Step-by-step instructions: how to extract and install SIM-map

The process of replacing the SIM is the same for most Redmi models, but there are exceptions. Below is a universal manual that takes into account the features of different devices.

1. Turn off the phone (required for older models)

Redmi models until 2020 (such as the Redmi 8 or Note 7) require a complete shutdown before being replaced. SIM. New smartphones (starting with the Redmi 9) support hot replacement, but we recommend turning the device off anyway – this reduces the risk of damage to contacts.

2. Find a slot for SIM-map

On most Redmi, the tray is on the left side (if you look at the screen).

• 📱 Redmi K50 Gaming: slot on the right (near the volume buttons).
• 📱 Redmi 10X 5G: slot on top (near the IR port).

3. Remove the tray.

Put the paperclip in the hole next to the slot and press before you click. The tray will extend 1-2 mm - carefully pull it with your fingers.

1. Check if the hole is contaminated.
2. Try to click with great effort (but without fanaticism!).
3. Heat the phone with a hair dryer (if the mechanism is jammed from moisture).

4. Install. SIM-map

Put the SIM in the tray chip down, matching the notch on the card with the ledge in the slot.

• 📱 SIM + SIM: Use both nests (top and bottom).
• 📱 SIM + microSD: Select priority (either second SIM or memory card).

⚠️ Note: On the Redmi Note 10 Pro and later, when you install two SIMs, microSD support is turned off. If you need a memory card, use only one physical memory card. SIM (The second can be configured as eSIM if the model supports the).

5. Put the tray back in place.

Insert the tray until you hear a click. Make sure it sits straight - if there is a gap, the SIM will not contact the phone. Turn on the device and wait for the network to be determined (it can take up to 2 minutes).

1. correct installation of the chip (it should fit tightly to the contacts).

2. operator compatibility (some Chinese versions of Redmi block Russian SIMs).

3. Settings APN (especially if you are using the MTS or Tele2).-->

Frequent problems and their solutions

Even if you do everything according to the instructions, there may be problems, and let's look at the most common ones and how to fix them.

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

Causes and solutions:

• 🔄 Restart your phone – sometimes the system doesn’t immediately recognize a new SIM.
• 🧹 Clean the contacts of the tray with alcohol (especially if the SIM has previously been used in another device).
• 📶 Check coverage area – it may not be the phone, but the operator’s network.
• 🛠️ Update the software - in old versions MIUI There are bugs with the recognition of sims (for example, in Redmi Note 9 on the MIUI 12.0.3).

2. SIM-map is defined, but no network

This is a typical problem for Redmi with two SIMs.

1. Go to Settings. → SIM-Maps and mobile networks and enable automatic network selection.
2. Manually select the operator in the Network Search menu.
3. Check the settings. APN (Especially if you use an Internet package. For MTS: name - Internet.mts.ru, APN — mts.

3. The tray is not fixed or falls out

If the tray does not click during installation, most likely, the plastic lock inside the slot has broken. The temporary solution is to fix it with tape, but this will not help for long. Contact the service to replace the mechanism (cost - 300-800 rubles depending on the model).

4.The phone asks PUK-code

This means that the SIM is blocked after 3 incorrect attempts to enter PIN. To unlock:

1. Find it. PUK-code on a plastic SIM media or in the operator's personal account.
2. Enter it in the appropriate field on the phone screen.
3. If PUK Lost, contact the operator - the SIM will have to be replaced.

Xiaomi Redmi eSIM: How to activate and configure

Virtual SIM-eSIM cards are only supported in the flagship models of Redmi: Note 12 Pro+ 5G, K60 Pro, Redmi 13C 5G (Advantages of eSIM for some regions:

• ✅ No need to physically change the card when changing the operator.
• ✅ You can keep multiple profiles (for example, work and personal).
• ✅ Resistance to mechanical damage.

To activate the eSIM:

1. Get it. QR-code or activation code of the operator (support eSIM: MTS, Beeline, MegaFon, Tele2).
2. Go to Settings. → SIM-maps and mobile networks → Add eSIM.
3. Scan it. QR-code or enter the code manually.
4. Confirm activation (reboot may be required).

⚠️ Attention: Redmi Note 12 Pro+ eSIM only works with VoLTE-enabled carriers. If you have an old tariff without VoLTE, calls may not work (and the Internet will be available).

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Before switching to eSIM, check if your tariff supports this technology. For example, MTS eSIM is only available on Tariff and Ultra rates.

How to cut SIM-map to nano-format independently

If you have an old-style SIM (mini-SIM or micro-SIM), you can trim it to nano-SIM without losing functionality.

• 📏 Line or template for cropping (can be printed here).
• ✂️ Sharp scissors or a stationery knife.
• 🧼 Sandpaper (for grinding edges).

Step-by-step:

1. Overlay the template on the SIM and circle the nano-SIM contour.
2. Carefully trim along the line, leaving a stock of 0.5 mm.
3. Grind the edges with sandpaper so that they do not scratch the tray.
4. Check that the chip is not damaged and the SIM enters the tray effortlessly.

⚠️ Note: If the chip is cracked or scratched, the SIM will not work.In this case, contact the operator for a replacement - most salons do this for free upon presentation of the passport.

Comparison of physical SIM eSIM: Which is Best for Redmi

Choosing between the physical SIM And eSIM depends on your needs:

If you have a Redmi Note 12 Pro+ Or newer and you change carriers a lot, eSIM will be more convenient. 10C) If you need two physical SIMs, choose a nano-SIM.

FAQ: Answers to Frequent Questions