Replacement SIM-Xiaomi maps: A complete guide to all models

Replacement SIM-Xiaomi smartphones seem like a simple procedure, but even here there are nuances that can cause difficulties: differences in the design of trays, support for two SIM cards or a combination of SIMs.+MicroSD and hybrid slots require careful attention, and in this article we will not only look at the standard process of retrieving and installing a card, but also look at the typical errors that lead to a network missing or tray damage.

We will pay special attention to models with hybrid slots, where the choice between the second one is not possible. SIM And you'll also learn how to cut nano-SIM properly if your Xiaomi supports only this format, and what to do if your phone doesn't see a new SIM after installation, POCO, Mi and Black Shark.

Before you start, check whether yours is suitable. SIM-map by size to smartphone slot.Most new Xiaomi models (starting with the 2019 Only nano-SIMs are supported (12.3×8.8 If you have an old card (mini or micro), it will have to be cut or replaced in the operator’s cabin – self-cutting without a template can damage the chip.

Preparation for replacement SIM-Maps: What to do in advance

Before you remove the tray, follow a few simple steps to avoid problems:

• 📱 Turn off your smartphone. This will prevent accidental damage to the slot contacts when you remove the tray. On some models (for example, Xiaomi 13 Pro), the tray is locked software if the phone is turned on.
• 🔍 Check the type of slot. Check the model's specifications to see if it supports two. SIM-Cards at the same time or is it a hybrid slot (SIM + For example, the Redmi Note 12 has separate slots for two nano-SIMs, and POCO X5 — hybrid.
• 📶 Save important data. If you change number or operator, make sure all contacts are synced with Mi Account or Google. SIM old-fashioned SMS And the calls could go missing.
• 🛠️ Prepare tools: a paper clip (or a special key from the kit), tweezers (to extract the tray on some models), and a clean napkin.

If you are switching from one SIM card to another, but you keep the same number (for example, when replacing a damaged card), check with the operator in advance whether you need to activate a new one. SIM. Some operators (for example, MTS or Beeline) require confirmation through USSD-team.

⚠️ Warning: Do not use metal objects (knives, needles) instead of a paper clip - they can scratch the body or bend the tray mechanism.

Step-by-step: how to remove the tray for SIM-map

The process of extracting the tray is the same for most Xiaomi models, but there are exceptions. For example, on the Xiaomi Mix Fold 3, the tray is located on the upper edge, not on the side, as usual.

1. Find a tray extraction hole on the side (or top) of your smartphone, located next to the volume or power buttons.
2. Insert the paperclip into the hole at an angle of 45-60 ° and press with force until the tray is pushed out 1-2 mm.
3. Carefully pull the tray with your fingers or tweezers. On some models (for example, the Black Shark 5), it does not fully extend - you will have to tweez it with your nail.
4. Put the tray on a clean surface. Don't put it on metal or magnetic objects, it can damage the chip. SIM-map.

If the tray is not extended:

• 🔄 Check if the paperclip is skewed. It should enter the hole smoothly, without backlash.
• 🔧 On some models (e.g. Xiaomi) 12T) This machine can jam because of dust. Try blowing the hole with compressed air.
• 📱 Make sure the phone is off. On the device on, the tray can be locked software.

The smartphone is off.

Paperclip or key at hand

Slot type (hybrid/double) checked

Contacts and data are saved

Clean surface for tray-->

On IP68-protected models (such as Xiaomi 13 Ultra) the sealing ring may shift after the tray is removed. Before installing the SIM, check that the gum is in place, otherwise the moisture protection will be disrupted.

Installation SIM-Cards: Rules and Typical Errors

Before installation SIM-The cards in the tray pay attention to:

• 🔧 Chip position: The tray usually has a diagram showing which side to insert the card, the chip should be facing down, and the bevelled angle should match the notch on the tray.
• 📏 Card size: If you trimmed the micro-SIM to nano, check if there are any extra millimeters of plastic left at the edges. Even a small protrusion can prevent the correct fixation.
• 🔄 Installation procedure: if you have two SIM-cards, the tray may have marks SIM1 and SIM2. Some Xiaomi models support the first slot 5G, And the second one is just 4G.

Typical errors in installation:

After installation SIM-map:

1. Carefully insert the tray back into the smartphone without skewing. It should enter easily, effortlessly.
2. Press the tray until the characteristic click - this means that it is fixed.
3. Turn on your phone and wait for the network to appear (it can take up to 2 minutes).

⚠️ Attention: If after installation SIM phone "SIM-The card is not supported, check if it is activated by the operator. Some virtual operators (for example, Tinkoff Mobile) require pre-activation through the application.

Features of hybrid slots: SIM + microSD

Hybrid slots (e.g., in Redmi Note 11 or POCO M4 Pro) allow you to choose: either two SIM-card SIM + It's important to understand:

• 🔄 You can't use two at the same time. SIM You'll have to sacrifice a second SIM or an extra storage.
• 📱 First slot (SIM1) usually 5G, second (SIM2) — only 4G. If you care about internet speed, set the main one. SIM first-place.
• 💾 MicroSD up to 2TB is supported by most models, but read/write speeds may be limited (e.g. up to 100MB/s on Redmi 10).

How to choose priority:

1. If you need two numbers (for example, for work and personal calls), use both SIM slots.
2. If the memory is missing but the second number is not critical, put the microSD in the SIM2 slot.
3. On some models (such as Xiaomi 12 Lite), the hybrid slot supports SIM1 + microSD or SIM2 + microSD, but not both SIMs at the same time.

To reconfigure:

1. Turn off the phone and remove the tray.
2. Move the cards according to the desired scheme (for example, remove the second SIM and insert the microSD).
3. Turn on the phone and wait for the memory card recognition in Settings → Storage.

What to do if Xiaomi doesn’t see it SIM-card

If, after installing a new SIM-The phone says "No network" or "SIM-map not found, follow the following steps:

1.Reboot and check the slot

• 🔄 Restart your phone. Sometimes the system doesn't recognize a new one right away. SIM.
• 🔍 Remove the tray and check if the card is inserted correctly (chip down, without distortions).
• 🧹 Clear the contacts. SIM-cards and slots with soft fabric soaked in alcohol.

2. Network settings

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

• Make sure that SIM-Card activated (slider enabled).
• Check if the network mode is correct (e.g. 4G/5G instead of 2G).
• Manually select the operator in the Network Search section.

3.Verification SIM-map

• 📱 Try inserting. SIM If it doesn't work, the operator has a problem.
• 🔧 Make sure the card is not damaged (no scratches on the chip).
• 📞 Call the operator and check if it is blocked. SIM (For example, due to late payment).

4. Network resetting

If nothing helps, do the reset:

1. Go to Settings → About the phone → Reset settings.
2. Select Network Reset (not to be confused with a full reset!).
3. After restarting, re-set the connection to the mobile network.

⚠️ Attention: On models with MIUI 14 and later after the network reset, you may need to re-activate the eSIM (if it was configured). → Mobile network → Add eSIM.

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If the phone is writing "SIM-Card not supported, but card is good, try disabling Double SIM-Sometimes conflict between slots leads to this error.

How to cut SIM-map to nano-size without risk

If your Xiaomi only supports nano-SIM, and you have a micro or mini card, you can cut it yourself.

• 📏 Template for cropping (can be printed from the official website of the operator).
• 🔪 Sharp scissors or a stationery knife.
• 🧼 Alcohol and cotton disc to clean edges.
• 🔍 Lupa (optional, for accuracy).

Step-by-step:

1. Put a template on SIM-map and circle the contour of the nano-SIM marker.
2. Carefully trim the plastic on the marking, leaving 1-1.5 mm of stock from the line (it is better to fit it with sandpaper later).
3. Clean the edges with sandpaper (granularity 1000-1500) to make them smooth.
4. Check if the plastic is touching the chip. If it is, just go a little further.
5. Wipe the card with alcohol and insert it into the phone.

What can't be done:

• ❌ Cut without a pattern "by eye" - high risk of damage to the chip.
• ❌ Use scissors with blunt blades - they can crumble plastic.
• ❌ Bending or pressing on the card after pruning - microcracks will lead to breakage.

If you are not sure of your skills, it is better to contact the operator’s cabin – trimming there costs 50-100 rubles, but guarantees the card’s performance.

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Even a perfectly trimmed nano-SIM might not work if the chip is shifted relative to the standard, in which case only a replacement card from the operator will help.

Frequent questions about replacing the SIM with Xiaomi