How to insert it correctly SIM-Map in Xiaomi Redmi 9: instructions with photos and tips

Installation SIM-cards in a smartphone — it would seem, a simple procedure, but even it can cause questions from a beginner. Especially if we are talking about budget models Xiaomi, where the manufacturer sometimes saves on convenience. Redmi 9 — one of the most popular smartphones of 2020, but its tray for the first time. SIM-The cards have features that you should know about in advance, such as why the card is not fixed in the slot or how not to damage the contacts when installing the card.

In this article, we will discuss not only the basic steps for installation, but also the nuances: what type of SIM supports Redmi 9, whether you can use two cards at the same time, how to properly remove the tray without a clip, and what to do if the phone does not see the network after installation.

If you have just bought a Xiaomi Redmi 9 or are planning to change carriers, this guide will help you avoid typical errors. SIM-maps – for example, how to prioritize the network or enable roaming for the second SIM.

1. Which one? SIM-The cards are supported by Xiaomi Redmi 9?

Redmi 9 (codenamed Lancelot) is equipped with a hybrid slot for two nanoSIM cards or one nanoSIM. + microSD cards (up to 512GB) which means you won't be able to use two SIM-Cards and memory cards at the same time – you will have to choose.

Important technical details:

• 📱 Type SIM: nanosim (4FF, 12.3 × 8.8 MicroSIM or miniSIM cards are not suitable without trimming.
• 🔄 Two-band support: both SIM-maps are working 4G+4G, second SIM Does not support VoLTE (calls by phone) 4G).
• 🌍 Frequency: Networks are supported GSM 850/900/1800/1900, WCDMA 1/2/4/5/8, LTE FDD 1/2/3/4/5/7/8/20/28.
• ⚡ Speed: maximum download speed up to 300 Mbps (LTE Cat.4).

If you SIM-You can cut it to nanoSIM with a stack (sold in the salons) or with template scissors, but we don't recommend the second way, because the risk of damaging the chip is too high.

⚠️ Note: If you are using a microSD card in a hybrid slot, the second one is SIM-The card automatically turns off, and Redmi 9 does not support hot swap - to change cards, the phone must be turned off.

2. Where is the tray for SIM-map?

Xiaomi Redmi 9 slot for the game SIM-The map is located on the left end of the case (when you look at the screen with your face), and it's easy to identify from the small hole to extract it, which is about half the height of the smartphone.

The outside of the tray is a metal plate with slots to fix the cards, and it has a pattern of the correct location. SIM-map:

• 📶 Slot 1 (SIM1): Main slot, supports the 4G/3G/2G.
• 📶 Slot 2 (SIM2): The additional slot also supports 4G/3G/2G, without VoLTE.
• 💾 MicroSD Slot: Takes Place Second SIM-cards (hybrid slot).

On some Redmi 9 modifications (e.g. Redmi 9 Prime or Redmi 9 Power), the slot location may be different - check the documentation for your model. Also pay attention to the color markings: the tray usually has gold contacts that should match the contacts on the tray. SIM-map.

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If you can’t find the slot, shine a flashlight on the end of the smartphone – the hole to extract the tray will reflect the light.

3. What will be required for installation SIM-map?

For installation SIM-You will need a map of Xiaomi Redmi 9:

• 📌 Paperclip or tool to extract the tray (goes complete with the phone).
• 📱 NanoSIM card (one or two, depending on configuration).
• 🔋 Phone switched off (recommended, but not necessarily).
• 🕯️ Good lighting – the tray is small and in the dark it is easy to make mistakes.

If you don't have a Xiaomi branded tool, any thin metal clip or even a toothpick (but carefully, the plastic can break) will do, as long as the item enters the hole and can press the lock inside.

⚠️ Warning: Never use sharp objects (knives, stitches) to remove the tray.This can damage the O-ring, causing dust or moisture to enter the body.

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

Follow this algorithm to install correctly SIM-Map in Xiaomi Redmi 9:

1. Turn off the phone (optional, but recommended) to prevent possible failures in initializing the card.
2. Find a hole to extract the tray on the left end of the smartphone.
3. Put the paperclip in the hole and press before you click. The tray will extend a little.
4. Carefully pull the tray out of the body.
5. Put it down. SIM-map(s) in appropriate slots: 📶 For one. SIM: Put her in. SIM1 (groove). 📶📶 For two. SIM: fill in both slots (SIM1 and SIM2). 📶💾 For SIM + microSD: Place the memory card in the groove SIM2 (second SIM).

Make sure that the gold contacts are SIM-The cards look down, and the bevelled angle coincides with the shape of the tray.

Carefully insert the tray back into the smartphone before clicking.

Turn on the phone and wait for the network initialization (can take up to 2 minutes).

The tray is clean (no dust or dirt) |

SIM-map trimmed to nanoSIM|

Contacts SIM-cards unscratched|

Phone is off (optional)-->

After installation, the phone does not see SIM-map, try it:

• 🔄 Reset the device.
• 🧹 Wipe your contacts. SIM-dried-cloth cards (without alcohol!).
• 🔧 Check if the card is inserted correctly (contacts should be at the bottom).

5. Frequent mistakes and how to avoid them

Even with the seemingly simple procedure, users often make mistakes that lead to network problems.

• 🔀 Upside down SIM-Map: contacts should be at the bottom. If you put the card upside down, the phone won't see it.
• 🔄 Incomplete insertion of the tray: if the tray is not latched, SIM-The card will not be in contact with the connector.
• 📵 Using microSIM without an adapter: Redmi 9 does not support microSIM – only nanoSIM.
• 🌐 No network after installation: sometimes manual setup is required APN (point).
• 🔋 Installation with your phone on: While it is possible, it is best to turn off the device to avoid crashes.

Critical error: If you feel resistance when you pull the tray, DO NOT use force. 90% of the time, that means that you can't use force. SIM-The card is incorrectly installed and locks the mechanism.

After installation SIM-The phone says "No service" or "SIM-The card is not supported, try it:

1. Reboot the phone.
2. Check to see if it's active. SIM-The card is operated by the operator (sometimes it takes time to activate the card).
3. Manually select the network in the settings: Settings → SIM-cards and mobile networks → Network selection.
4. Reset network settings: Settings → System → Settings Reset → Reset settings Wi-Fi, mobile network and Bluetooth.

6.Tune in. SIM-postcard

After successful installation SIM-Xiaomi Redmi 9 maps are recommended to set network priorities and other settings:

1. Name SIM-To avoid confusion, give them unique names: Go to Settings → SIM-maps and mobile networks. SIM-map and press "Name" SIM-Enter the title (e.g., "Worker" or "Personal").
2. Selecting the default network: 📞 For calls: Settings → SIM-maps and mobile networks → Calls. → SIM-default-card. 📶 For mobile data: Settings → SIM-maps and mobile networks → Mobile data → SIM-data-card. 💬 For SMS: Settings → SIM-maps and mobile networks → Communications → SIM-map SMS.
3. Enabling VoLTE (only for the purpose of SIM1): Go to Settings. → SIM-maps and mobile networks → [Choose. SIM] → Enable VoLTE. If the option is not available, check your carrier's VoLTE support.
4. Roaming settings: For each SIM-Cards can be separately enabled roaming: Settings → SIM-maps and mobile networks → [Choose. SIM] → Please note that roaming is the second. SIM-The card may not work on the network. 4G.

If you use two of them SIM-maps, note the network icons in the status bar. Redmi 9 displays them separately, but by default mobile data only works through one SIM. To save traffic, you can turn off the mobile Internet for the second SIM:

Settings → SIM- Maps and Mobile Networks → [Select SIM] → Mobile Data → Disable

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If you travel frequently, set up Fast Switches for roaming and mobile data, allowing you to turn them on/off right from the notification bar without going into the settings.

7. Compatible with microSD memory cards

Xiaomi Redmi 9 Hybrid Slot Allows You to Use MicroSD Instead of Second Slot SIM-But there are some important nuances:

• 💾 Maximum volume: officially supported cards up to 512 GB, but in practice it is better to use 256 GB (more stable work).
• ⚡ Speed: Choose class cards for optimal performance UHS-I (U1 or U3).
• 🔄 Formatting: When you first connect, your phone will suggest formatting your card as a portable storage or internal memory.
• 📱 Data transfer: in memory settings (Settings) → Memory) can transfer some applications to SD-The map, but not all programs support it.

To install the microSD:

1. Turn off the phone.
2. Remove the tray and remove the second one. SIM-map (if it has been installed).
3. Place the microSD in the SIM2 groove (contacts down).
4. Put the tray back in and turn on the phone.
5. After initialization, format the card (if necessary).

⚠️ Note: If you use microSD as internal memory, it can’t be retrieved without data loss, and it can slow down your phone because the read/write speed of the memory cards is lower than that of the internal memory.

8 What to do if the phone can’t see SIM-map?

After installation SIM-Xiaomi Redmi 9 card won’t recognize it, follow these steps:

If none of these methods worked, the problem may be:

• 🔌 A damaged slot. SIM (Check for dirt or oxidation).
• 📡 Software failure (try resetting your network settings).
• 🔧 Hardware malfunction (refer to the service center).

In rare cases, the problem may be related to the phone's IMEI. To check it, type *#06# in the dialer. If the IMEI is missing or incorrect, you will need to flash the device.

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If the phone stopped seeing SIM-map after falling or getting moisture, DO NOT try to disassemble it yourself.

FAQ: Frequent questions on SIM-maps in Xiaomi Redmi 9