Xiaomi Redmi 10 is one of the most popular models of the budget segment, but even experienced users sometimes have questions about the basic setup. SIM-The cards seem like a simple procedure, but there are pitfalls here, from tray type (single or hybrid) to proper nano-SIM trimming. In this article, we’ll break down all the ways to install a Redmi 10 SIM, including visual cues, format compatibility tables, and solving typical problems (for example, when a phone doesn’t see the network after inserting a card).
Redmi 10 features a hybrid slot that supports either two nano-SIMs or one SIM+ microSD card, which means that if you choose the wrong configuration, you may lose the ability to expand memory. We will show you how to avoid this error and correctly allocate slots. You will also learn what tools you will need (spoiler: not always enough standard clip!), and what to do if the tray is jammed or the SIM is not recognized.
Preparation: What to Know Before Installing SIM in Redmi 10
Before you start a physical installation, check out three key points:
- 📱 Type of yours. SIM-maps. 10 It only supports nano-sim format (12.3 × 8.8 If you have a micro-SIM or a standard SIM, It will have to be cut or replaced in the cabin of the operator.
- 🔧 There's a tool to remove the tray, and there's a paper clip that comes with the phone, but any thin metal needle that's good, like a stapler, will do. Never use plastic items, because they can break inside the slot!
- 📡 Compatibility with networks. Redmi 10 works with 4G (LTE) and 3G, not supportive 5G. If your carrier uses a rare frequency (e.g. Band 28), check for coverage in your area.
Important: If you plan to use two SIM-Make sure both are activated by the operator, inserting a non-activated SIM can cause a "No Service" error on the second slot. SIM One of them will be working in the mode. 3G (if the function "Double" is enabled 4G" off-set).
Where is the slot for SIM-Maps in Xiaomi Redmi 10
In Redmi 10 trays for SIM-The map is located on the left end of the body (if you look at the phone screen), and it's easy to identify from the small hole next to it, which is the socket for the extraction tool. On some modifications (for example, Redmi 10 2022) slot can be moved to the right end, but in the base version of 2021 it is always on the left.
Externally, the tray is a metal plate with slots for fastening SIM-It's got a map of the right placement:
- 📶 Slot 1 — Main (supports) 4G/3G/2G).
- 📶 Slot 2 — supplementary (supports) 4G/3G/2G, But when using microSD, it only works. 2G).
⚠️ Note: If you insert a microSD into the slot 2, second SIM-The card will automatically stop supporting 4G It will only work on networks. 3G/2G. This is a hardware limitation, it cannot be circumvented through settings.
To open the tray, follow the following steps:
Turn off your phone (recommended, but not required)
Insert the paperclip into the hole before clicking.
Carefully pull the tray over yourself.
Do not put too much effort – if the tray does not come out, check if the clip is skewed.-->
Step-by-step instruction: how to insert SIM-map
Now, to the process itself, follow the instructions carefully to avoid damaging the contacts or tray.
Step 1: Removing the tray
1. Take the tool for extraction (clip from the kit or needle).
2. Put it in the hole on the end of the phone at a 90 degree angle to the body. Press until the characteristic click, which means that the tray lock is out.
3. Pull the tray carefully over you. If it doesn't come out, don't pull it -- check if the tool has fully entered the hole.
Step 2: Accommodation SIM-map
Place the tray on a flat surface with the contacts up.
- 🆔 For one. SIM-card: place it in slot 1, cut corner to the direction indicated on the tray.
- 🆔🆔 For two. SIM-cards: first in slot 1, second in slot 2 (also cut upwards angle).
- 📁🆔 For SIM + microSD: SIM to slot 1, memory card to slot 2 (contacts down).
Critical moment: SIM-If it's hanging around or protruding beyond the edges, cut it to the size of a nano-SIM or use an adapter. Inserting an improperly cropped SIM can damage your phone's contacts!
Step 3: Return the tray to the phone
1. Make sure that SIM-The card(s) and/or microSD are securely fixed in the tray.
2. insert the tray back into the slot before the click. It should enter without effort - if you feel resistance, remove the tray and check that the cards are correctly installed.
3. Turn on the phone (if it was turned off) and wait for the network to appear. The first connection can take up to 2 minutes.
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If, after insertion, SIM-card phone does not see the network, try to restart the device or manually select the operator in the settings: → SIM-maps and mobile networks → Choice of network
Compatibility table for SIM-card formats for Redmi 10
To avoid mistakes when trimming or buying a new one SIM-Maps, use this table:
| SIM format | Dimensions (mm) | Compatible with Redmi 10 | Decision |
|---|---|---|---|
| nano-SIM | 12.3 × 8.8 × 0.67 | ✅ Supported | Install unchanged. |
| micro-SIM | 15 × 12 × 0.76 | ❌ Not supported | Cut to nano-SIM or replace in the cabin operator |
| standard SIM | 25 × 15 × 0.76 | ❌ Not supported | Cut to nano-SIM or order a new one |
| eSIM | Virtual | ❌ Not supported | Redmi 10 does not have an eSIM module |
If you need to trim the micro-SIM to nano-SIM, use a special template or scissors with thin blades. Do not cut by eye - this can damage the chip. The best option is to contact the communication salon, where you will be free to replace the card to the desired format.
Frequent mistakes and their solutions
Even with the right installation SIM-So, the problem is that people are facing problems:
1.The phone doesn't see. SIM-map
Causes and solutions:
- 🔌 Bad contact: Remove the tray and check if the contacts are contaminated SIM-- Do you want to clean them with a dry cloth.
- 📵 Inactivated SIM: Contact the operator (for example, via *111# for MTS or *105# for Beeline).
- 🔄 Software failure: Restart your phone or reset your network settings in Settings → System system → Resetting settings → Resetting Wi-Fi, Mobile Network and Bluetooth.
2.The tray is not inserted back in
It's because of:
- 🔧 Incorrectly installing cards: check that SIM It's in the grooves of the tray, not the other way around.
- 💥 Tray skew: insert it smoothly, without skewing. If the tray is jammed, do not use force, contact the service center.
- 🧲 Garbage hits: light the slot with a flashlight - perhaps dust or metal shavings got there.
⚠️ Warning: If the tray breaks inside the phone, don't try to remove it yourself - it could damage the antenna module.
3.The phone only sees one. SIM-map
Redmi 10 has a priority function SIM-If the second SIM is not determined:
- Go to Settings. → SIM-maps and mobile networks.
- Select "Double SIM" and activate the second card.
- Make sure that roaming is enabled for it (if you are in another region).
What to do if SIM-The map is recognized, but there is no Internet?
Network activation and mobile Internet setting
After installation SIM-The last step is to set up the connection, and in most cases, the Internet settings (APN) They are automatically installed, but sometimes they have to be manually installed.
Automatic setup
1. Turn on the phone and wait for the network icon to appear in the status bar.
2. You must receive an SMS with settings from the operator (for example, from MTS or Tele2). Open this message and confirm the installation.
3.Reboot your phone if the internet doesn't work right away.
Manual setting of APN
If the automatic setting does not work:
- Go to Settings. → SIM-maps and mobile networks → [choose SIM] → Access points (APN).
- Click Add and enter your operator's settings. For example, for MTS: Name: MTS INTERNET APN: internet.mts.ru Username: mts Password: mts
- Save the settings and select the APN profile you created.
APN settings for other operators:
- 📡 Beeline: APN — Internet.beeline.ru, user name and password - beeline.
- 📡 MegaFon: APN — Internet, user name - gdata, password - gdata.
- 📡 Tele2: APN — internet.tele2.ru, Leave your username and password blank.
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If the Internet does not work after manual setting, check if mobile data is included for this purpose. SIM-Also make sure there is enough money in your account to pay for traffic.
Additional advice on the use of SIM-maps in Redmi 10
Here are a few hacks that will make it easier to work with SIM-map:
- 🔄 Quick shift. SIM: If you switch between cards frequently, use the Profiles feature. SIM" It allows you to save individual settings for each SIM (for example, turn off mobile data for work). SIM off-hours).
- 📶 Network Priority: In Settings → SIM-maps and mobile networks → [choose SIM] → The preferred network type can be selected manually. 4G/3G/2G. If there is a weak signal in your area 4G, switch over 3G linkage stability.
- 🔒 Lockdown SIM: To protect the card from unauthorized use, turn on PIN-request → Security → Lockdown SIM-Just remember the cards. PIN, Otherwise, you'll have to rebuild. PUK-operator!
- 🌍 Roaming: Before traveling abroad, check if your operator supports roaming in the host country.Redmi 10 allows you to turn off roaming for a specific destination. SIM-Cards to avoid unexpected expenses.
If you use Redmi 10 as a second phone (for example, for work), consider using a virtual phone. SIM-Although the phone itself does not support eSIM, some providers (such as Tinkoff Mobile) offer a second number service on the main one. SIM-This will save you the need to physically change your cards.