Activation. SIM-Xiaomi maps: a detailed guide with error solutions

You just got a new Xiaomi smartphone – be it the Redmi Note 13 Pro+, Poco X6 Mi 14 Ultra – but faced with a problem: the phone can not see SIM-This is a familiar situation for many users, especially those who are first-time users of the brand. Unlike iPhone or Samsung, Xiaomi smartphones sometimes require additional settings after installation. SIM, In some cases, the problem lies in the features of the firmware MIUI.

In this article, we will not only discuss the basic activation process. SIM-maps, but also nuances that are often overlooked: from the right choice of slot (especially important for hybrid models with support for microSD) to manually configuring network parameters for operators like MTS, Beeline or Tele2. SIM The phone says “No service” or “Emergency Calls Only” and why some models (e.g. Xiaomi) 13T) You may not support older Mini-SIM cards.

If you're in a hurry, use the quick instructions at the end of the article. For those who want to get into the details, we've prepared a detailed guide with explanations for each step, including hidden settings. MIUI, which are not written in official documentation.

1.Preparation for activation: what to do before installation SIM

Before you put it in. SIM-card to Xiaomi smartphone, make sure you follow all the preliminary steps.This will save you from unnecessary problems like damage contacts or incompatibility of the map format.

First, check the type. SIM-Most modern Xiaomi smartphones (starting with the Redmi Note 10 and later) only work with Nano-SIM. If you have an old-style card (Mini-SIM or Micro-SIM), it will have to be cropped or replaced in the cabin of the operator. The exception is some models for the Chinese market (e.g. Xiaomi Civi 3) that can support eSIM instead of physical. SIM.

Second, look at the location. SIM-Most devices have it on the left end, but in some models (such as the Xiaomi Mix Fold 3), the slot can be hidden under the lid or require a special tool to retrieve.

• 📱 Check Compatibility: Make sure your carrier is supported in the smartphone purchase region (especially relevant for devices purchased abroad).
• 🔧 Prepare the tool: To extract the tray, you will need a paper clip or a special key (goes complete with the phone).
• 📶 Charging phone: Make sure battery level is at least 20% - some models (Poco) F5) may not be activated with a discharged battery after installation SIM.
• 🔄 Backup: If you are transferring SIM from the old phone, keep your contacts and SMS (For example, through the settings → Google → Backup).

⚠️ Note: If you are using a hybrid slot (SIM + microSD, remember that when installing a memory card, the second SIM-This is going to be locked, and it's going to be for models like the Redmi 12 or the Poco. M6 Check the priority: what is more important – additional storage or second SIM?

Proper installation SIM-cards in a Xiaomi smartphone

Installation process SIM It may sound simple, but even here, there are nuances that affect how the network works.

Turn off the phone first, a must for most Xiaomi devices, with the exception of hot-swap models. SIM (For example, some versions of the Xiaomi Pad 6, but even then it is recommended to turn off the power supply.

Next, find a tray for SIM-It's usually represented by a small hole or a pictogram of a card, and you put a paper clip in the hole and you click on it, and the tray should move out. If that doesn't happen, don't put too much effort into it. You may be pressing in the wrong direction (the angle of the staples should be 45-60 degrees).

Now put it in. SIM-Note the position of the chip: it should be downward, and the bevelled corner of the card coincides with the shape of the socket. For models with two slots (Xiaomi 13 Lite, Redmi Note 12 Pro), the first slot (usually the first slot) SIM1) supportive 5G, second (SIM2) It can only work on networks. 4G. If you have two cards, place the main card (c). 5G) first-slot.

Make sure the phone is turned off

Check the type SIM (Nano-SIM for most models)

Press the tray with a paper clip at an angle of 45°

Place SIM chip down, combining the beveled angle

Carefully insert the tray before clicking-->

Turn on your phone after installation and wait for the system to boot. MIUI automatically determine a new one SIM-You can use the card and ask it to activate it. If it doesn't, go to Settings. → SIM-Maps and mobile networks and select the desired profile.

⚠️ Attention: If after installation SIM The phone says no. SIM-"cards" or "Invalid card," check to see if dust or dirt has entered the tray contacts. Gently wipe them with dry soft cloth. Do not use alcohol or liquids - this can damage the coating!

Activation SIM-maps: step-by-step process

After the physical installation SIM-The card needs to be activated in the system. MIUI It does this automatically, but sometimes you need to manually adjust.

If SIM-a new card (for example, you just bought it from the operator), it may require activation through a call or SMS. For that:

1. Turn on the phone and wait for the new notification to appear SIM.
2. Follow the instructions on the screen (usually you need to send them) SMS textual START or ACTIVITY to a short operator number).
3. Restart your phone after receiving confirmation SMS.

If the notification does not appear, go to Settings → SIM-Maps and mobile networks and select your SIM. Here you can:

• 📞 Turn on the map: Switch the slider to the "On" position next to the operator name.
• 🌐 Select Network: Click Network Type and install 4G/5G (recommended or Only 3G (if there is a problem with the coating).
• 🔄 Update settings: Tap “Network Search” for manual scanning of available operators.

Some operators (e.g. Yota or Tinkoff Mobile) may need to manually configure access points (APN). To fulfill it:

1. Go to Settings. → SIM-maps and mobile networks → [Yours. SIM] → Access points (APN).
2. Click Add and enter the options provided by the operator (usually they are on his website).
3. Save the settings and restart the phone.

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If, after activation, SIM The internet is not working, but the calls are probably incorrect. APN. Check the parameters with your operator or reset them to the factory: in the menu APN press three points → «Reset to default values».

If SIM-The card was previously used on another phone, and it usually goes away without any further action, but in rare cases, the operator may block the card due to frequent switching between devices. IMEI You can find your Xiaomi code (#06#).

4. Solving common activation errors SIM

Even if you've done everything right, sometimes there are problems, and let's look at the most common mistakes and how to fix them.

Mistake 1: “No” SIM-Cards" or "Impermissible Cards»

Reasons:

• 🔌 Flawed fit SIM in the tray (check if the card falls out when shaking the phone).
• 🛠️ Damaged tray contacts (greatly wipe them with pencil eraser).
• 📱 Incompatibility with the region (some Xiaomi for China block foreign countries) SIM).

Solution: Try inserting SIM If it works, the problem is the smartphone. If it doesn't, ask the operator for a replacement.

Error 2: “Emergency Calls Only”

Reasons:

• 📡 No network coverage (check operator coverage area).
• 🔄 Incorrect network settings (switch to the 2G/3G, if 4G/5G catcherless).
• 📵 SIM-The card is not activated (call the operator from another phone).

Solution: Go to Settings → SIM-map → [Yours. SIM] → Network type and select Auto or Only 3G.

Error 3: “No registration on the network”

Reasons:

• 🔒 Lockdown IMEI (Applicable for devices purchased from hand or abroad).
• 📶 Problems with the operator (check the status of the network on its website).
• 🔧 Firmware failure (especially after update) MIUI).

Solution: Try resetting your network settings: Settings → System system → Resetting settings → Reset your Wi-Fi, mobile network and Bluetooth settings.

If none of these methods worked, try updating your firmware to the latest version or resetting it to factory settings (be sure to back up!). In extreme cases, contact the service center - the problem may be in the hardware (for example, damaged communication module).

5. Features of activation SIM for different Xiaomi models

Not all Xiaomi smartphones are the same – some models have unique nuances when working with the same device. SIM-Let's look at the most popular series.

Redmi Note series (e.g. Redmi Note 12 Pro)

These phones usually have a hybrid slot, where the second slot can be used either under the second slot. SIM, Or a memory card. If you choose a microSD, the second one is a microSD. SIM It turns off automatically, and these models also sometimes have problems recognizing two. SIM At the same time – in this case, rebooting or resetting network settings will help.

Poco series (e.g. Poco) X5 Pro)

Poco devices are often game-oriented and have enhanced antennas to better receive the network, but some firmware has VoLTE disabled by default. 4G), Which could cause problems with calls. To turn it on, go to Settings. → SIM-map → [Yours. SIM] → Enable VoLTE.

Flagship models (Xiaomi) 13/14)

Dual is supported in these phones. 5G (both SIM-cards can work in 5G simultaneously, but only if the operator allows it, and manual adjustment may be required. APN Some models (e.g. Xiaomi 13 Ultra) support eSIM, which allows two different types of devices to be used. SIM cardboard.

Budget models (Redmi) A2, Poco C50)

Cheap smartphones often lack support 5G, And sometimes even 4G There may be no automatic settings here. APN, So you have to type in the parameters manually, and another thing is that you have a poor reception because of the budget antennas, and if you're constantly losing the network, try using a case without any metal elements.

For models with MIUI Global Market (Denotation Global) ROM) Usually no problem with activation SIM. If you have a Chinese firmware (China) ROM), There may be difficulties with foreign SIM-In this case, the unlocking of regional restrictions (for example, through the use of a MIUI Unlock Tool, but it voids the warranty).

6. Additional settings to improve network performance

Even if SIM-The map is successfully activated, it can be optimized. Here are some tips for stable signal and fast Internet.

Enabling VoLTE and VoWiFi

These technologies allow you to call through 4G/5G And Wi-Fi, which improves the quality of the connection, so that they can be activated:

1. Go to Settings. → SIM-maps and mobile networks → [Yours. SIM].
2. Enable VoLTE and VoWiFi options (if available).
3. Reboot the phone.

If there are no options, check if your operator supports them (for example, MTS and Beeline support, and some regional operators do not).

Priority setting SIM-map

If you have two. SIM-cards, you can configure which one will be used by default for calls, SMS and mobile Internet:

1. Go to Settings. → SIM-maps and mobile networks → Priority SIM-map.
2. Choose the main one. SIM call-in, SMS data.
3. Set up switching rules (for example, use the second one) SIM roaming-only).

Optimization of traffic consumption

To avoid unexpected expenses, set up your limits:

• 📊 Set a Traffic Limit: Settings → SIM-map → [Yours. SIM] → The limit of mobile data.
• 🚫 Turn off background traffic for apps: Settings → Annexes → Permits → Auto-start.
• 🔄 Enable Traffic Savings: Settings → Connections and sharing → Saving traffic.

Signal strength check

If the network is permanently lost, check the signal level in the engineering menu:

1. Enter the code ##4636##.
2. Select "Phone Information".
3. Look at the dBm (the closer you get to it) 0, better; -100 dBm and below: weak signal).

If the signal is weak, try using a network repeater or changing the location of the phone (for example, bring it to the window).

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If your Xiaomi is not catching the network well, try turning off automatic network selection and manually specifying the operator. this sometimes helps avoid connecting to congested towers.

Frequently asked questions

Here we have collected answers to the most popular questions of users about working with the Internet. SIM-maps on Xiaomi.

Quick instruction: activation SIM 5 steps

If you need a brief guide without unnecessary details, follow these steps:

1. Turn off the phone. Remove the tray for SIM with the help of a paper clip, insert the Nano-SIM chip down (the cut corner should coincide with the shape of the tray).
2. Turn on your phone and wait for the load. MIUI. If a new notification appears SIM, Follow the instructions on the screen.
3. Activate. SIM: Go to Settings. → SIM-maps, turn on the map and select the network type (4G/5G).
4. Set up the internet: If mobile data doesn't work, check it out APN (settings should be on your operator’s website).
5. Reboot your phone and check the connection. If there are problems, reset your network settings or contact your carrier.

If you have two. SIM-maps, set priorities in Settings → SIM-map → Priority SIM-map.

For models with eSIM you will receive QR-the operator code and activate the virtual card in the settings.

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If after all the manipulations SIM If the card is faulty, ask the operator for a replacement, if the smartphone is affected, the communication module may be damaged, in which case only the service center will help.