How to insert it correctly SIM-Map in Xiaomi Redmi Note 4: instructions with photos and nuances

Xiaomi Redmi Note 4 (codenamed Nikel) remains popular even years after its release, thanks to its reliability, performance and memory expansion capabilities. SIM-cards, especially if we are talking about a hybrid slot that supports either the second SIM, Or microSD card. In this article, we'll take a step-by-step instruction with all the nuances, from the type of cards supported to common install errors.

The Redmi Note 4 features a non-removable battery, which means that the SIM slot is accessed through a side-facing retractable tray, and if you first encounter one, or move from a removable lid device (like the Redmi 3S), the process may not seem obvious. We'll tell you how to avoid damaging the tray or contacts, what tools you'll need, and what to do if your smartphone doesn't see the card after installation.

Important: the instruction is relevant for all modifications of the Redmi Note 4, including versions with 3/32 GB, 4/64 GB and Global/China ROM. the differences can only be in the firmware (network settings), but not in the physical installation of cards.

1. Which one? SIM-The cards are supported by Xiaomi Redmi Note 4

The Redmi Note 4 comes with a hybrid slot for two nano-SIMs (4FF) or one nano-SIM+microSDs (up to 256GB).

• 📱 Two nano-SIMs (for example, for work and personal calls).
• 📱 One nano-SIM. + microSD card (if you need more space for photos and apps).

❌ Micro-SIM cards are not supported (3FF) or mini-SIM (2FF) — They will have to be trimmed or replaced by a nano-SIM from the operator.

If you're old. SIM-You can exchange your card for free in the phone room of your operator (MTS, Beeline, Tele2, MegaFon), you need a passport. The alternative is to use an adapter for pruning, but it is risky: if you do not cut the contacts neatly, the card will stop working.

2. What will be required for installation SIM-map

Before you start, prepare:

• 🔧 Paperclip or needle (combined with phone in box).
• 📱 nano-SIM card(s) or microSD (if you plan to expand your memory).
• 🔍 Good lighting – the tray is small and the contacts are fragile.
• 🧲 Magnet or tweezers (optional if the paperclip slipped out of the hole).

⚠️ Note: Do not use pins, toothpicks or knives to extract the tray - they can scratch the body or break the locking mechanism.The original clip from the kit has an optimal diameter and will not damage the hole.

If you lost a paper clip, you can replace it with an unbended stationery clip or buy a universal key for the use of a paper clip. SIM-The main thing is that the diameter of the tool does not exceed 0.8 mm, otherwise there is a risk of weakening the mechanism.

3. Step-by-step instruction: how to insert SIM-map

Follow the algorithm to avoid errors:

1. Turn off your smartphone. This is optional, but it is recommended to avoid failures when initializing the card.
2. Find a SIM slot. In Redmi Note 4, it's on the left side of the screen. The clip hole is small, but it's visible.
3. Put the paperclip in the hole and press until you click. The tray will extend 2-3 mm — pull it with your fingers.
4. Put it down. SIM-Note the notch, which should match the shape of the slot. For microSD, use the top slot (if you install it instead of the second one). SIM).
5. Carefully insert the tray back before the click. Don't make any effort -- if it doesn't come in, check if the cards are properly installed.

If the tray is not fixed, try to press it slightly on the side - sometimes the mechanism jams due to dust. Do not try to insert it curved: this can bend the contacts inside the phone.

4. How to check that SIM-card installed correctly

After turning on the phone, follow the following steps:

1. Go to Settings. → SIM-maps and mobile networks.
2. Make sure that the operator name and signal level are displayed next to the SIM number.
3. Try to make a call or send an SMS.

If the smartphone does not see SIM-map:

• 🔄 Reboot the phone.
• 🔧 Check if the card is upside down (contacts should be directed to the phone case).
• 📶 Manually select the operator network in the settings (Settings) → Mobile network → Network operators).
• 🛠️ Clear the contacts. SIM-cards with a swallow or alcohol (sometimes oxidation interferes with communication).

⚠️ Note: If your phone says “Map is damaged” after installing a microSD, try formatting it on your PC in a format. FAT32 (not NTFS!). Redmi Note 4 does not support memory cards larger than 256 GB, even if they are formatted correctly.

5. Frequent mistakes and how to avoid them

Even experienced users sometimes make mistakes when installing SIM-These are the most common maps:

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If you change often SIM-For example, when traveling, buy a spare tray for the Redmi Note 4 on AliExpress or in local stores.

In Redmi Note 4, the tray for SIM-The cards don't have a spring mechanism, they're fixed only by plastic latches, and if you handle them rough, they can break, and the tray will stop holding, and you'll need to replace the entire module, which costs 500 to 1,000 rubles in the service.

6. Compatibility with operators and network settings

Redmi Note 4 supports 2G/3G/4G LTE networks (depending on the modification).

1. Go to Settings. → SIM-maps and mobile networks.
2. Choose. SIM-map for which you need to set up the Internet.
3. Enable the option Mobile data.
4. If the internet is not working, enter APN-manual settings (you can find them on your operator’s website).

For MTS, Beeline and MegaFon, settings are usually automatically applied. If you have a virtual operator (for example, Yota, Tinkoff Mobile), you may need to manually enter APN.

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In Redmi Note 4 with firmware MIUI 12+ There's a double function. 4G" — She lets both of them. SIM-map 4G simultaneously, if the operator supports VoLTE).

7 What to do if the smartphone does not see SIM-map

After installation SIM-The phone won’t recognize the card, follow the following steps:

1. Sometimes the system doesn't initialize the card the first time.
2. Check the tray for damage, and if the contacts are bent, they can be straightened neatly with a needle.
3. Wipe. SIM-Use a soft tissue or eraser to remove oxidation from the contacts.
4. Try another one. SIM-If the second card works, the problem is the first card (it may be blocked by the operator).
5. Reset network settings. Go to Settings → System → Reset settings → Network reset.

If nothing helps, the cause may be a malfunction. SIM-If you want to use a slot or an antenna module, you can go to the service center:

• 🔧 Replacement SIM-tray: 800-1500 rubles.
• 📡 Repair of antenna: 1500-3000 rubles.

FAQ: Answers to Frequent Questions