Xiaomi’s Internet is Not Working: A Complete Guide to Diagnosing and Troubleshooting

You took Xiaomi and the Internet suddenly stopped working? Pages are not loaded, messengers are not updated, and the network icon is flashing or disappearing? This problem is familiar to many users of Redmi, POCO and Mi smartphones — from budget models to flagships. The reasons can lie in the settings of the phone, and in the problems of the operator or router.

In this article, we will look at all possible scenarios, from basic checks (which are often ignored) to deep diagnostics of network parameters, and learn how to distinguish hardware failure from software failure when it is the fault of the software. SIM-map, and when is firmware MIUI. And most importantly, get unique solutions for Xiaomi models with MediaTek and Qualcomm processors, where network recovery algorithms differ.

Don't rush to bring your phone to the service, because 90 percent of the time, you can solve the problem yourself in 10 to 30 minutes, and let's start with the simplest and gradually move on to the most complex manipulations.

Basic Diagnostics: What to Check First

Before digging deep into the settings, make sure the problem isn't on the surface.These steps take no more than 5 minutes, but often save hours on finding a solution.

Check the status of the operator's network: sometimes the Internet disappears due to scheduled work or accidents. Go to the website of your mobile operator (for example, mts.ru, beeline.ru) or call support at *111# (MTS), *102# (Beeline), *500# (MegaFon). If the site is hanging a notice of technical work, you just have to wait.

Make sure the internet is not accidentally shut down:

• 📱 Open the notification curtain and check if the mobile Internet (antenna icon) is turned on. MIUI It may be disabled after updates.
• 🔄 Switch the data transfer mode from 4G/LTE on 3G and back to Settings → SIM-maps and mobile networks → Type of network.
• 💳 Remove and re-insert. SIM-map – sometimes contacts oxidize or the card shifts.

Wi-Fi testing: if mobile Internet does not work, but Wi-Fi is connected - the problem is exactly the same SIM-If Wi-Fi is not working, check the router (reboot it, connect another device).

2.APN settings: why they get confused and how to fix

APN (Access Point Name is the "address" that connects the phone to the carrier's Internet, and if it's not configured correctly, the Internet won't work even if there's a signal. MIUI shift SIM-map.

To check the APN:

1. Go to Settings. → SIM-maps and mobile networks → [yours SIM] → Access points (APN).
2. If the list is empty or there are several items, click Reset to default values.
3. If the reset didn’t help, create a new APN manually (click + in the top right corner).

APN settings for popular carriers (2026):

After you enter the settings, save the settings, restart the phone, and check the internet. If the APN is not saved or disappears after a reboot, this is a sign of a firmware failure (read section 5).

💡

On some Xiaomi models (for example, Redmi Note 10 Pro) after resetting the APN, you need to manually select the created profile in the list and click Save, otherwise it will not activate.

3.Problems with SIM-map: from oxidation to locking

If the Internet does not work in any place, and the calls pass – it is the fault SIM-That's what you check:

• 🔍 Physical condition: get out SIM-If they're dimmed or covered with green, it's oxidation.
• 📏 Form factor: Xiaomi supports nano-SIM. If you use an adapter for micro-SIM, it may not communicate well.
• 🔒 Operator blocking: sometimes operators block the Internet for non-payment or by mistake. USSD-teams: MTS: *100*1# Beeline: *102# Megaphone: *105#

Test on another phone: insert SIM-If the Internet is working, it's your Xiaomi problem. If it's not, it's your fault. SIM operator.

⚠️ Note: On Xiaomi models with a hybrid slot (for example, Redmi Note 9) SIM-The card may not be contacting if the second slot is occupied by the microSD.

4. Network Resetting: When and How to Do

If the previous steps didn't work, the next step is to reset the network settings, which will delete all stored Wi-Fi networks, passwords, Bluetooth and mobile Internet settings, but return the factory values of APN, DNS and other critical parameters.

How to reset your network settings to MIUI:

1. Open Settings → About the phone → Reset settings.
2. Select Network Reset (not to be confused with a full reset!).
3. Confirm the action and wait for the reboot.

After discharge:

• 🔄 Connect to Wi-Fi again.
• 📱 For mobile Internet, wait for automatic settings APN (It can take up to 5 minutes).
• 🔧 If the Internet is not available, manually add APN (section).

What to do if the reset does not help:

• Check if the phone is in flight mode (sometimes it turns on accidentally through the notification curtain).
• Make sure that the date and time are set automatically (Settings → Additional → Date and Time). Incorrect settings can block access to the network.

Remember passwords from Wi-Fi|Keep important Bluetooth devices|Check the balance SIM-map|Shut down. VPN (if used)|Make a backup copy SMS (if necessary)-->

5. Deep malfunctions: firmware, IMEI and hardware failures

If the internet doesn’t work even after resetting, the problem may be related to:

• 📱 Bad firmware (especially after bad updates) MIUI).
• 🔢 Dropped. IMEI (Unique phone ID without which the operator does not give access to the network).
• 🛠️ Hardware malfunction (damaged modem, antenna or contacts) SIM-map).

How to check for IMEI:

1. Please enter the phone app *#06#.
2. If instead of a 15-digit code you see Null, 000000000000000000000 or an empty field, the IMEI is reset.

You can restore IMEI on Xiaomi through an engineering menu or specialized utilities (for example, Maui META for MediaTek or QCN Rebuilder for Qualcomm).

⚠️ Attention: If IMEI lost after firmware through Fastboot, do not try to restore it yourself) IMEI It is tied to a chip and is restored only through official tools.

Signs of hardware malfunction:

• The Internet does not work with any SIM-map, but Wi-Fi works.
• The phone does not catch the network at all (no signal).
• After falling or getting moisture.

In such cases, diagnostics are required in the service: the average cost of repairing a modem on Xiaomi is from 2 000 to 5 000 rubles (2026).

6. VPNs, firewalls and other programs that block the Internet

Sometimes the internet on Xiaomi doesn't work due to third-party apps or system restrictions.

• 🔒 VPN-Services: Even if you didn't turn them on, some apps (such as Cloudflare's 1.1.1.1) can automatically redirect traffic. VPN In Settings → Connections → VPN.
• 🛡️ Antiviruses and firewalls: MIUI It has a built-in firewall that can block network access for individual applications. → Annexes → Permits → Auto-start.
• 📴 Energy saving mode: in Settings → Battery → Power saving mode disable restrictions for browser and messengers.

How to check if the app is blocking the Internet:

1. Start Safe Mode (click the Shutdown button → “Safe Mode”).
2. Try to go online. If it's working, it's one of the apps that you installed.
3. Remove the recently installed programs until the problem disappears.

Frequent culprits:

• 🔹 Advertising blocking applications (AdGuard, Blokada).
• 🔹 Battery Optimizers (Greenify, AccuBattery).
• 🔹 Chinese applications with aggressive permissions (e.g, UC Browser).

7. firmware update and rollback to stable version

If the Internet stopped working after the MIUI update, the firmware bug is to blame, especially in betas or regions like China ROM, where there may be no settings for Russian carriers.

How to update the firmware manually:

1. Download the latest stable firmware for your model from the official website en.miui.com/download.html.
2. Move the.zip file to the phone’s root folder.
3. Go to Settings → About Phone → System Update → Click on three dots in the upper right corner → “Select a firmware file.”

If the update doesn’t help, try to roll back to the previous version:

• 🔙 You will need to unlock the bootloader via the Mi Unlock Tool.
• 🔧 Use the Mi Flash Tool to Firmware the Old Version in Clean All Mode.

⚠️ Attention: Firmware rollback will erase all data on the phone! pre-backup through Settings → Additionally. → Backup and reset.

Models with MediaTek (e.g. Redmi 10A) may require firmware via SP Flash Tool, and Qualcomm (e.g. POCO X3 Pro) via Fastboot. For more detailed instructions, look at the 4PDA or XDA Developers forums.

💡

If the Internet is gone after the upgrade, but Wi-Fi is working, the problem is exactly in the settings of the mobile network. Try resetting the APN or flashing the modem module separately (modem.img file).

8.When to contact the service: signs of malfunction

If you’ve tried all the ways, but the internet on Xiaomi still doesn’t work, it’s time to carry the phone for repair.

• 📡 The phone does not catch the network at all (no signal, even calls do not work).
• 🔌 The Internet only works near a window or on the street (problem with antenna).
• 🔥 The phone overheats in the upper part (there is a modem).
• 💧 Before the breakdown, the phone fell or came into contact with water.
• 🔢 IMEI Reset to 000000000000000000000 and not regenerated programmatically.

Average repair prices (2026, Moscow/SPb):

How to choose a service center:

• 🔍 Check reviews on Yandex.Maps or 2GIS.
• 🛡️ Prefer centers with official license Xiaomi (list of the official licenses) mi.com/ru/support).
• 💰 Check the cost of diagnosis - in good services it is free or read into the cost of repair.

If the phone is warranty, contact only authorized service centers. Self-repair will deprive you of warranty obligations.

💡

Before visiting the service, make a complete phone reset (Settings → Reset → Delete all data). Sometimes this helps to identify a hardware malfunction if the problem is not in the software.

FAQ: Frequent questions about the Internet on Xiaomi