Why Xiaomi doesn’t see why SIM-MTS map: full analysis of the problem

Why the phone stopped seeing the SIM

You put it in. SIM-MTS card in the smartphone Xiaomi, but instead of the usual strips of the network on the screen flaunts the inscription “No service», «SIM-The problem is familiar to millions of users - and the reasons can lie in both the phone's settings, the SIM itself, or even the device's firmware.

In this article, we’ll break down all the possible scenarios why Xiaomi (including the Redmi models, POCO, Mi doesn't see SIM-MTS card – from banal contamination of contacts to conflicts with firmware MIUI. You'll get step-by-step diagnostic and solution instructions, and you'll also get to know when to go to the service center!

1. Checking the physical condition SIM-card-slot

The first thing to rule out is mechanical problems, and even a tiny speck of dust on the contacts or a loose fit of the SIM can cause the network to be out of place.

• 🔍 Look at this. SIM-map: the contacts (the golden side) should not be scratched, scuffed or oxidized. If there is, gently wipe them with a wipe or an alcohol wipe.
• 📱 Check the slot: Remove the tray for SIM And look at the contacts inside the phone, and they should be clean and smooth).
• 🔄 Reinstall the SIM: sometimes it is enough to remove and insert it again, making sure that it sits tightly in the tray.
• 📲 Try another slot: if you have Xiaomi with two SIM, insert the MTS card into the second slot - perhaps the problem in the first.

If the network doesn't appear after these manipulations, move on to the next step. Special attention: on the Redmi Note 10/11 and POCO X3/X4 models, a slot defect is often found - contacts are bent when the SIM is not installed neatly.

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Use a plastic card (such as a bank card) to carefully extract the tray - metal clips can scratch the case.

Table: Compatibility SIM-MTS cards with popular models Xiaomi

2.APN setup for MTS manually

If the phone sees SIM-card (number or operator displayed), but no internet or calls, the problem may be incorrect settings APN (MTS usually sends them automatically, but sometimes manual input is required.

How to set up an APN on Xiaomi:

1. Go to Settings. → SIM-maps and mobile networks → [Choose. SIM MTS] → Access points (APN).
2. Click Add and enter the following settings: Name: MTS Internet APN: Internet.mts.ru Proxy: not specified Port: not specified Username: mts Password: mts Authentication Type: PAP or CHAP Type APN: default,supl
3. Save the settings and restart the phone.

If the internet doesn’t work, try an alternative APN for MMS:

Name: MTS MMS


APN: mms.mts.ru




MMSC: http://mmsc:8002




Proxies: 192.168.192.192




Port: 8080




Type APN: mms

- Old APN profiles removed

- Precise parameters are entered (registration is important!)

Selected the correct profile after saving

- Rebooted phone-->

⚠️ Attention: On some firmware MIUI (For example, 13.0.6) after the update, the settings are reset. APN. If the Internet disappeared after the update – check this item first.

3. Firmware problems and reset network settings

Firmware errors MIUI — One of the most common reasons why Xiaomi doesn’t see SIM-This is especially true after updates or when you use custom firmware:

• 🔄 Reset your network settings: go to Settings → System and device → Resetting settings → Reset mobile network settings, which will delete stored Wi-Fi networks and cellular settings.
• 📱 Check the firmware version: go to Settings → The phone. → Version. MIUI. If version is older than 12.5, update via Settings → Updating the system.
• 🛠️ Reverse to stable firmware: If the problem has occurred after the update, try returning the previous version via Fastboot (instruction below).

For experienced users: if the phone can’t see SIM post-flip TWRP, It may have been damaged by modem or EFS-In this case, only flashing through the Mi Flash Tool with full wipe will help.

⚠️ Attention: Firmware rollback erases all data! pre-reverse through Settings → Additionally. → Backup and reset.

4. conflict with two SIM-cards (Dual SIM)

Many Xiaomi models (e.g. Redmi Note 11 Pro) POCO F4) two-way SIM-If the phone sees one SIM but doesn't see the MTS, try it:

• 🔄 Change it. SIM In some places: insert MTS in the first slot, and the second SIM in the second.
• 📵 Turn off the second. SIM: Go to Settings. → SIM-Maps and mobile networks and deactivate the second card.
• 🔧 Set Network Priority: Select Priority for MTS in the same settings 4G (preferably or only 4G.

If the problem persists, check if the "Only One SIM for Data" mode is activated. In some MIUI firmware, this option is reset after the update.

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On models with a hybrid slot (SIM + microSD), the second SIM may not work if the memory card is installed.

5. IMEI blocking or operator issues

If all the previous steps did not help, perhaps the problem is not the phone, but the phone itself. SIM-MTS card or account. Here's what you need to check:

• 📞 Call the MTS hotline (0890 from the MTS phone or 8-800-250-0890) and specify: Is activated SIM-Is there a lock due to non-payment or suspicious activity, does your fare support regional operation (e.g. roaming).
• 🔢 Check it out. IMEI: Type *#06# if the 15-digit code is displayed as Null or 0000..., IMEI It can happen after a failed firmware.
• 🔄 Restore. IMEI: If the code is lost, it can be restored through the engineering menu (instruction below) or in the service center.

To restore the IMEI through the Engineering Menu:

1. Click ##4636## and select Phone Information.
2. Scroll down to Set preferred network type and check if your settings have reset.
3. If IMEI is absent, you will need to firmware EFS-section (better contact the service).

⚠️ Attention: Self-recovery IMEI If you don't know the original code, you can lose communication completely.

6. Hardware malfunctions: when repairs are needed

If none of the software methods worked, the problem is likely hardware, and here are the signs that the phone needs repair:

• 🔌 The slot is damaged. SIM: contacts bent, oxidized or soldered off the charge (often after the phone drops).
• 📡 The communication module is defective: the phone does not catch the network with any SIM-The card, although the SIMs work in other devices.
• 🔋 Problems with the antenna: weak signal or its complete absence even in the zone of confident coverage.
• 🔥 CPU overheating: If the phone is too hot, the communication module may be turned off to protect.

The cost of repairs in Xiaomi service centers:

Before you visit the service, check if the warranty period (usually 12 months for new devices) has expired.

7. Alternative solutions: eSIM and workarounds

If your Xiaomi model supports eSIM (e.g. Xiaomi 13 Pro or X-ray). POCO F5), You can try to activate the virtual SIM-MTS map:

1. Make sure your tariff supports eSIM (check with the operator).
2. Download the My MTS application and go to the SIM Management section → Connect eSIM.
3. Follow the instructions — QR-activation code will come to SMS.

If eSIM is not an option, try:

• 📶 Use Wi-Fi Calls: Enable the option in Settings → SIM-maps and mobile networks → Additionally. → Wi-Fi calls.
• 🔄 Insert SIM to another phone: temporarily use the second SIM to make calls until you fix the main one.
• 📱 Buy outside 4G-modem: if the problem is in the phone, and the connection is urgently needed, the modem with support for MTS will be a temporary solution.

FAQ: Frequent questions about the problem