Where is the slot for SIM-Xiaomi Redmi 9: instructions with photos and tips

Introduction: Why it is important to insert correctly SIM-map

Xiaomi Redmi 9 remains one of the most popular budget devices even years after its release, its reliability and functionality have been appreciated by millions of users, but even with a simple action like installing a smartphone. SIM-Installation often leads to network failure, contact damage, or even tray failure.This article will help avoid common errors and explain how to insert SIM-The first time a Redmi 9 card was used.

Unlike the flagship models, where the SIM slot can be hidden under the lid or combined with the battery, Redmi 9 is extremely simple — but there are nuances. For example, many users confuse the sides of the tray or try to insert microSIM instead of nanoSIM. We will analyze all the details from map preparation to checking the connection to the network.

If you just bought a Xiaomi Redmi 9 or are facing a “no network” problem after replacing it SIM, This is a manual that will be your salvation, and for those who plan to use two. SIM-cards or memory cards, we have prepared a separate section with compatibility and limitations.

Technical characteristics of the SIM slot in Xiaomi Redmi 9

Before you start installing, it is important to understand what type of SIM-The Redmi 9 is equipped with a hybrid slot, which means:

• 📱 Only nanoSIMs are supported (4FF) — Standard or micro-size cards will not work without trimming.
• 🔄 The slot is combined with a microSD connector (up to 512 GB), but you can use either two nanoSIMs or one at the same time. SIM + memory-card.
• 🌍 Dual support 4G VoLTE - both SIM-Cards can work in networks 4G At the same time (with support from the operator).
• ⚡ Maximum data transfer speed: up to 150 Mbit / s (LTE Cat.4).

Important: If you plan to use two SIM-Attempt to insert a microSIM may damage the tray or the phone's contacts. Also check if your operator supports networking. 4G on both cards simultaneously – some Russian operators limit this function.

If you SIM-You can cut it to a nano format with a special adapter or in a communication room, but we don't recommend doing it yourself without experience, because the risk of damage to the chip is too great.

Step-by-step instruction: how to insert SIM-Map in Xiaomi Redmi 9

Now, let's get to the practical part. Follow this instruction to avoid mistakes.

1. Turn off your smartphone.Although Redmi 9 supports hot SIM replacement (no switch off), we recommend turning off power for contact safety.
2. Find a SIM slot. It's on the left end of the device, just below the volume buttons. The tray extraction hole is barely noticeable - don't confuse it with a microphone!
3. Remove the tray. Use a clip or a special key from the kit. Put it in the hole before you click, the tray will extend 1-2 mm, after which it can be pulled out with your fingers.
4. Place it. SIM-Note the notch on the tray, which should match the corner of the map. SIM use both slots (SIM1 and SIM2), for SIM + microSD — SIM1 slot for memory card.
5. Put the tray back in. Make sure it's up straight, without any skewing. If you feel resistance, don't push, check if the cards are properly installed.
6. Turn on your phone. Check the network indicator in the top bar after booting. If there is no signal, restart the device or check the settings in Settings. → SIM-maps and mobile networks.

Critical detail: the SIM tray in Redmi 9 is asymmetrical — if you put it upside down, it won't go in until the end, but it can bend the contacts inside the phone. Always focus on the finger notch on the side of the tray.

Turn off the phone.|Check the type SIM (nanoSIM)|Prepare a paper clip or key|Clean the contact cards from dust (if necessary)|Make sure there is no damage to the tray-->

Frequent Mistakes and How to Avoid Them

Even with detailed instructions, users often make mistakes, and here are the most common ones and ways to solve them:

• 🚫 The slot won't open. Reason: the clip is too thin or bent. Use a standard-sized paper clip (0.7-0.9 mm) or a key from the kit. Don't try to open the slot with a knife or toothpick - this will damage the mechanism.
• 📵 Possible reasons: Map inserted by the wrong side (chip must be facing back of phone). SIM not activated by the operator (check in the personal account). SIM (Go to Settings. → SIM-maps and mobile networks → [choose SIM] → Turn it on).
• 🔌 The tray doesn't fit in until the end, SIM-The card is set curved or not to the end. Pull out the tray and make sure the cards are flat, without gaps. SIM2 with a microSD slot (they are of different depths).
• 💥 The phone doesn't see the second. SIM. Redmi 9 slot SIM2 It can conflict with the memory card. If you use a microSD, the second one is a memory card. SIM Solution: move the maps around (SIM1 + SIM2 without microSD or refuse the memory card.

⚠️ Attention: If after installation SIM-The phone stopped turning on or shows an error "SIM-"card damaged," immediately remove the map and check the tray's contacts for contaminants, sometimes dust or metal shavings from sloppy pruning. SIM can close contacts.

If none of the tips helped, try inserting. SIM-You can also upgrade Redmi 9 to the latest version of the software, and sometimes network problems are solved by software updates.

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Before installing a new one SIM-wipe her contacts with dry soft cloth, fatty fingerprints or oxidation can impair the connection.

How to use two of them SIM-cards and memory cards simultaneously

One of the key issues for Redmi 9 owners is the possibility of using two of them. SIM-And the design of the hybrid slot, unfortunately, doesn't allow for that:

• 🔄 Alternating. Use it. SIM1 + MicroSD in everyday life, and if necessary, insert a second one. SIM Instead of a memory card, the tray allows you to quickly change configuration.
• ☁️ Cloud storage: Move some of the data (photos, music) to Mi Cloud, Google Drive or Yandex Disk to free up space on your phone and use two of the devices. SIM.
• 📱 USB-OTG You can use microSD to temporarily access files. OTG-adapter and card reader, which is inconvenient for permanent use, but will help in extreme cases.
• 🛠️ Phone modification: Some service centers offer to install an additional microSD slot by soldering, but this is unwarranted and fraught with breakdowns.

If you are critically important to both SIM and memory card, consider models with a dedicated microSD slot, such as the Redmi Note 10 or the POCO X3 NFC. In the line of Redmi 9, such options, alas, are not.

Interestingly, in some regions (e.g. India), Redmi 9 was sold with a dedicated microSD slot, but in the Russian and European versions, this option is not available.

What to do if the SIM slot breaks or jams

If the tray is for SIM-You've stopped pushing your cards, you've jammed or bent your contacts, don't panic, and in most cases, you can solve the problem without going to the service center:

1. Check the extraction mechanism. Sometimes the paperclip doesn't make it to the end because of the accumulated dirt. Try blowing the hole with compressed air (for example, a can of cleaning equipment) or gently cleaning it with a toothpick.
2. Use alternative tools. If the paper clip doesn't work, try it: 📎 Opened stationery bracket (thickness) ~0.8 mm). 🔑 Special key from another smartphone (such as a Samsung or iPhone). 🧲 Magnet (bring to the area of the slot - sometimes the tray shifts under the influence of a magnetic field).

Take your phone apart (for experienced users).

Attention:

Get in the service.

Redmi 9

500-1500 rubles

⚠️ Note: If after unsuccessful attempts to remove the tray, the phone stopped turning on or shows a charging error, most likely you damaged the contacts of the battery.

In rare cases, the problem is not the mechanics, but the software failure.

• 🔄 Restart your phone in Safe Mode (hold the power button) → "Restarting in Safe Mode").
• 📲 Reset network settings: Settings → System system → Additionally. → Resetting settings → Resetting Wi-Fi, Mobile Network and Bluetooth.
• 🔧 Update the firmware through Settings → The phone. → Updating the system.

Compatibility of Xiaomi Redmi 9 with operators in 2026

While Redmi 9 supports most modern communication standards, some operators may be limiting functionality.

• 🏆 MTS, Beeline, MegaFon, Tele2. Full support 4G (LTE) and VoLTE (voice by voice) 4G). Both SIM-The cards work simultaneously, but the speed may be limited to the second. SIM Active Internet on the first.
• 🌐 Yota, Tinkoff Mobile, SberMobile. 4G There are, but VoLTE may not work (depending on the region). SMS When using eSIM on the main device.
• 📡 Local operators (Motiv, Letai, etc.) often limit speeds to 10-20 Mbps even in the coverage area. 4G. In Redmi 9, this is a “jumping” signal.
• 🚀 5G. Redmi 9 does not support fifth generation networks – top speed is limited LTE Cat.4 (up to 150 Mbps).

If you are planning to use Redmi 9 abroad, consider:

• 🇪🇺 In Europe and Asia, the smartphone supports the main frequencies 4G (Bands 1, 3, 7, 8, 20), In the United States, it can only work on networks. 2G/3G (Due to lack of support from the band 12/17).
• 🌍 For travel, it is better to purchase a local SIM-card – roaming with Russian operators is expensive (from 300 rubles / day).

To check the current coverage and speed, go to Settings → SIM-maps and mobile networks → [choose SIM] → Network type, if only available 3G, Try to manually select a network or contact the operator.

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In 2026, the Xiaomi Redmi 9 remains relevant for basic use, but does not support 5G and some modern features like Wi-Fi 6 or eSIM.

FAQ: Answers to Frequent Questions about SIM-Maps in Xiaomi Redmi 9