Why not catch the Internet on Xiaomi: a full analysis of the causes and solutions

Have you encountered your Xiaomi smartphone stop catching the internet - whether it's a mobile network or Wi-Fi? The problem is familiar to many owners of the brand's devices, from budget Redmi to flagship Mi and the likes of the brand. POCO. 80 percent of the time, the malfunction is software-based and fixes itself without going to the service center. But how do you tell the difference between a firmware failure and a hardware breakdown of an antenna module? And why, after the upgrade, MIUI missing?

In this article, we will discuss all possible reasons for the lack of Internet on Xiaomi, including rare cases such as conflict. IMEI You'll get checklists for diagnostics, step-by-step instructions with photos from real menus. MIUI, And also a network compatibility table for different models, and we'll focus on post-firmware issues and how to restore network settings without losing data.

If your Xiaomi does not see any network (including Wi-Fi and Bluetooth), the problem is more likely hardware - read the section on the diagnosis of the antenna module. APN or SIM-map.

1. Checking basic settings: what to do first

Before digging deep into your settings or carrying your phone for repair, do 5 mandatory checks. In 30% of cases, the problem is solved at this stage:

• 📶 Flight mode: Make sure it's off. MIUI It can be activated accidentally - swipe down the curtain or through Settings. → SIM-maps and mobile networks. Even if the flight mode icon doesn't burn, switch the switch twice for reliability.
• 🔄 Reboot: Turn off the phone for 1 minute, then turn it on. This will reset the temporary errors of the communication module, POCO F5) Helps hot reboot - press the power button + volume increase by 10 seconds.
• 📱 SIM-card: Remove the tray and check if the card is installed correctly.On Xiaomi with hybrid slots (like Redmi Note 12) make sure you don't insert the second one SIM It's a microSD slot. Try to put it in there. SIM In another phone, if there is no network, the operator has a problem.
• 🌐 Coverage area: Open your carrier’s coverage card (e.g, MTS Or Beeline, and see if you're in the dead zone, and even in Moscow, there are areas with bad signals. 4G.
• 🕒 Date and time: Incorrect settings can block access to the network. → Additionally. → Date and time and enable automatic determination (or manually set your time zone).

If the Internet didn’t appear after these manipulations, go to the following sections. SIM (Mi 11 Lite sometimes helps to disable the second card in the settings – some operators conflict when working together.

2. Problems with mobile Internet: settings APN and IMEI

If your Xiaomi catches the network (there is a signal), but the mobile Internet is not working, the settings are to blame APN (access point or conflict IMEI. Let's look at both cases.

Adjustment APN manually

APN — This is the "address" that the phone connects to the carrier's Internet if it gets lost (for example, after an update). MIUI), The Internet will go down. APN Xiaomi:

1. Open the Settings. → SIM-maps and mobile networks → [choose SIM] → Access points (APN).
2. Click on the three dots in the top right corner and select the New Access Point.
3. Enter your operator's settings (see table below). Save and select a new one. APN.

If, after setting up, APN Internet is not working, try resetting the network settings:

Settings → About phone → Resetting settings → Resetting network settings

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On some models (e.g. Redmi) 9A) post-discharge APN You have to reboot your phone twice to make the settings work.

2.2 Verification IMEI

IMEI — This is your phone's unique identifier, and if it's damaged or dropped (for example, after a failed firmware), the operator will not be able to identify the device, and the Internet will disappear. IMEI:

1. Dial *#06# on the keyboard and a 15-digit number (or two dual-SIM numbers) should appear.
2. If not IMEI You see Null or 000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.

To restore the IMEI on Xiaomi, you will need:

• 📌 Original phone box (listed here) IMEI).
• 💻 Computer with Mi Flash Tool or Maui META.
• 🔌 Cable USB (preferably original).

⚠️ Note: If you have never flashed your phone and IMEISuddenly is gone after the update MIUI, Go to the service center. IMEI On devices with a locked bootloader (Xiaomi after 2021) may lead to complete loss of communication.

3. Wi-Fi problems: from "no connection" to slow internet

If Xiaomi doesn't catch Wi-Fi (can't see the network, doesn't connect, or permanently breaks the connection), the reasons could be in the phone or the router. Let's take a Step-by-step.

Diagnostics on the phone side

First, check:

• 🔍 Network Visibility: Open Settings → Wi-Fi and see if neighboring networks are displayed. If the list is empty, the problem is in the phone's Wi-Fi module.
• 🔄 Wi-Fi mode: In the same menu, click on three dots → Additionally. → Wi-Fi mode. Try changing from car to car. 802.11n (2.4 GHz) or 802.11ac (5 GHz).
• 📡 MAC-Address: Some routers block dynamic devices MAC. B Settings → Wi-Fi → Additionally. → Private address disable this option.

If your phone sees the network but doesn’t connect, try:

1. Remove the network from the saved (click the name of the network) → Delete).
2. Connect again by entering the password manually (sometimes autocomplete fails).
3. Change the type of security in the router settings with WPA2/WPA3 on WPA2-PSK (Some Xiaomis are not working well with WPA3).

Problems with the router

If other devices are connected to Wi-Fi normally and Xiaomi is not, check:

On Xiaomi MIUI 13/14 There's a bug: the phone can "forget" Wi-Fi passwords after the update:

Settings → Applications → Application Management → Three points → Show system → Find “Settings” → Storage → Clear data

⚠️ Warning: Cleaning up your settings will reset all saved Wi-Fi passwords, as well as Bluetooth and mobile network settings. Before you do, back up through Settings. → The phone. → Backup.

4. Software glitches: firmware, updates and conflicts

One of the most common reasons for the loss of the Internet on Xiaomi — failures after the update MIUI. This can happen both with automatic updates and after manual firmware.Typical symptoms:

• 📵 Icons of the Internet are not working, but the Internet is not working.
• 🔄 Constant reconnection to Wi-Fi.
• 🚫 Message “Cannot activate mobile data».

Recoiling of the update

If the problem appears immediately after the update, try to roll back:

1. Go to Settings → About the phone → System update.
2. Press three points. → Update package.
3. Select the previous version (if saved) and install it.

If the previous version is not available, download it manually from the official Xiaomi website (choose stable, not beta!). → Three points. → Select the update file.

Reset to factory settings

If the rollback doesn't work, you'll have to do a hard reset, which will delete all the data, but it will bring the network back to work.

Make a backup copy (Settings) → The phone. → Backup)

Remember your Mi Account (linked email and password)

Remove the SIM and memory card (if any)

Charge your phone at least 50 times%-->

1. Open Settings → About Phone → Resetting → Erase all data.
2. Enter the password from your Mi Account (if you forgot, restore it on account.xiaomi.com).
3. Wait until the phone is finished (it will reboot several times).
4. Once turned on, don’t restore data from the backup right away – check first if the internet is working.

If the Internet came on after the reset, the problem was the setting conflict, and you can slowly recover the data by watching what action the problem comes back.

Conflicts with annexes

Some applications (especially) VPN, Antiviruses and "optimizers" can block Internet access:

1. Launch your phone in Safe Mode (press the power button → Safe Mode).
2. If the Internet works in safe mode, the third-party application is to blame.
3. Remove suspicious programs (start with the VPN: Turbo VPN, 1.1.1.1, Psiphon).

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On Xiaomi MIUI 14 is a bug: the system application Security can block the Internet for individual applications. To fix, open Settings → Annexes → Permits → Autostart and enable autostart for browser and instant messengers.

Hardware malfunctions: antenna, communication module and SIM-tray

If all the software methods have been tried and the Internet still doesn't work, the problem could be hardware.

Damage to the antenna module

Symptoms:

• 📶 No mobile network signal (even one division).
• 🔍 Wi-Fi and Bluetooth do not work at the same time.
• 📱 Phone stops catching network after falling or getting moisture.

Antenna module on Xiaomi can fail after:

• 💧 Water intrusion (even if the phone doesn’t turn off immediately).
• 🔨 impacts or falls (especially at the angle where the module is located).
• ⚡ Overheating (for example, after a long game with charging).

You can check the antenna using the equipment test:

Dial ##4636## → Phone Information → Scroll down to the Signal block

If in the section GSM Signal Strength or LTE Signal Strength is zero or unknown, the antenna is faulty.

⚠️ Note: On Xiaomi models with a metal body (such as the Mi 9 or Mi 10), antenna lines often depart from the board when disassembling. If you changed the battery or screen yourself, you could damage the antenna plume - in this case only a soldering iron will help.

5.2 Problems with SIM-tray

If the phone can't see SIM-The card or see it "once" the problem may be:

• 🔧 Tray contact: Oxidation or contamination (especially after moisture). SIM-alcohol-card.
• 🔌 Slot SIM: On some models (like the Redmi Note 8 Pro), slot contacts are bent over time.
• 📱 Module SIM: If the phone doesn't see any of them SIM-map (different operators tried), the module could fail.

To check the tray:

1. Extract. SIM-map and check the contacts on the tray and on the phone.
2. Try inserting. SIM In another phone – if it works, the problem is your Xiaomi.
3. If the contacts are clean, but SIM Undetermined, try updating the module firmware via the Mi Flash Tool (PC required).

Overheating of the communication module

In some models (for example, POCO X3 NFC or Redmi Note 10 Pro) the communication module overheats under prolonged load, which leads to the loss of the network:

• 🔥 The phone is heated at the top (where the camera is).
• 📶 The net goes missing after 10-15 play-minutes.
• 🔄 After cooling, the connection is restored.

Decisions:

• 🧊 Remove the case (especially silicone – it retains heat).
• 🔋 Do not use your phone while charging.
• 🛠️ In the service, you can replace the thermopast on the communication module (it is worth it). ~500-800 ruble).

6.Blocking by the operator or problems with IMEI

If your Xiaomi suddenly stopped catching the network, and before that everything worked, there may be problems from the operator:

Locking the IMEI

Operators can block the IMEI, if:

• 📱 Phone searched (stolen/lost).
• 💳 Account debt (rarely, but sometimes).
• 📡 Suspicion of using modified equipment (e.g. after firmware).

Check the lockdown. IMEI:

1. Find out. IMEI (*#06#).
2. Check it on the site imei.info or through the operator service (for example, MTS Personal Account).
3. If you are Blocked or Blacklisted, contact the operator with the documents on the phone.

Tariff restrictions

Sometimes the internet goes missing because of:

• 💰 End of traffic: Check the balance through USSD-command (e.g. *100# for MTS).
• 📅 Package expires: Some operators (e.g. Tele2) shut down the internet at night if the fare is not extended.
• 🌍 Roaming: In some countries, Xiaomi does not support local frequencies (for example, in the US, Redmi may not work on the same frequency). LTE).

To check:

Dial USSD- your operator's command:


- MTS: *111*0887#




- Beeline: *102#




- Megaphone: *105*00#




- Tele2: *155*1#

Conflict with eSIM

On models with eSIM support (for example, Xiaomi 13 or XPG) POCO F4) There may be a conflict between the physical SIM If you activate the eSIM but you're not using it:

1. Open the Settings. → SIM-maps and mobile networks → eSIM.
2. Remove the unused eSIM profile.
3. Reboot the phone.

7. Features of different Xiaomi models

Some Xiaomi series have unique problems with the Internet, and we've collected the most common ones.

For Xiaomi on MediaTek processors (e.g. Redmi Note 11 or POCO M4 Pro) has a problem with the communication module after the firmware. If the network is lost after the update, try it:

1. Install custom restoration (TWRP) and flash the radio module separately.
2. Reverse to the global firmware (if standing) EU ROM).

8.When to contact the service center

If you’ve tried all the methods in this article, but the Internet on Xiaomi is still not working, it’s time to contact the service.

• 📵 The phone does not see any network (no mobile, no Wi-Fi).
• 🔧 The antenna/communication module contacts are soldered or oxidized (visible when disassembling).
• 💧 The phone fell into the water or was exposed to severe humidity.
• 🔨 After self-replacement of the screen / battery network is lost.

The cost of repair in official Xiaomi services:

• 🔄 Replacement of antenna module: 1,500–3,000 ₽.
• 📶 Replacement of the communication module: 2,000–4,500 ₽.
• 🔧 Contact repairs SIM-tray: 800-1,500 ₽.
• 💻 Communication module firmware: 1,000–2,000 ₽.

Before the service visit:

1. Make a backup copy of the data (if the phone is still turned on).
2. Write it down. IMEI (from the box or through *#06#).
3. Check if the service has original parts for your model.

⚠️ Attention: Unofficial services often install second-hand communication modules from other phones. IMEI or lock by the operator. Demand a warranty for repairs!

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If your Xiaomi is warranty-free, don't disassemble it yourself!A body opening will void the warranty even if you haven't broken anything.

FAQ: Frequent questions about the problem