Why Xiaomi doesn’t have the Internet: a full analysis of the reasons and solutions

Why Xiaomi’s phone suddenly lost the internet

You picked up your Xiaomi Redmi Note 12 or POCO X5 Pro, and the Internet doesn't work — neither through the mobile network nor through Wi-Fi. Pages are not loaded, messengers are not updated, and in the status line instead of the usual icons 4G or Wi-Fi flaunts cross or exclamation point. The situation is familiar to many owners of Xiaomi smartphones, and the reasons for it can be dozens — from a banal failure in settings to hardware malfunctions.

In this article, we will analyze all possible reasons for the lack of Internet on Xiaomi, Redmi and other phones. POCO, From the simplest (which you can fix in 2 minutes) to the most complex cases requiring the intervention of the service center. MIUI, And you'll also find step-by-step instructions with screenshots, compatibility tables, and answers to frequent questions.

Before you start diagnosing, answer one question:

1.Problems with SIM-Map: Why the mobile Internet is not working

If your Xiaomi has lost only mobile Internet (WI-Fi works), first check SIM-Even if you didn't drop your phone or remove the tray, the contacts could oxidize and the map could shift.

Here are 4 key signs that the problem is SIM:

• 📶 The network icon shows E (Edge) instead of 4G/LTE, Although the coverage in your area is good.
• 📵 The settings display a message "No Service" or "SIM-map not found".
• 🔄 Rebooting the phone temporarily restores the network, but after a while it disappears again.
• 📱 Same phone on the other phone. SIM-The card is working normally (this eliminates the operator's problems).

What to do:

1. Remove and re-insert. SIM-Before you do that, wipe the contacts on the map and in the phone tray with a dry wipe. 12T and a newer tray can be combined with a cooling plate - do not make excessive efforts!
2. Check the settings. APN. Go to Settings. → SIM-maps and mobile networks → [yours SIM] → Access points (APN). If the list is empty or an error is displayed, click Reset to default values.
3. Activate flight mode for 30 seconds. This will reset the communications module. After the mode is turned off, wait 1-2 minutes for the network to recover.

2. Wi-Fi settings crash: why the phone isn't connecting to the network

If the mobile internet is working, but Wi-Fi is not connected or connected, but without Internet access, the problem may lie in the settings of the router or the phone itself. There are several hidden features on MIUI that interfere with the stable operation of Wi-Fi.

Typical symptoms:

• 🔄 Wi-Fi connects, but after a few seconds it is disabled with an error "Authentication...".
• 📶 Wi-Fi icon is active, but there is an exclamation mark next to it (!).
• 🔒 The phone asks you to enter a password, even though you enter it correctly.
• 📡 Wi-Fi Internet speeds are extremely low (less than 1 Mbps), although other devices are fine.

Decisions:

Forget the network and connect again | Disable Smart Switch in Wi-Fi settings | Change router security type from WPA3 to WPA2| Set static IP in connection settings |Reset network settings (section 4)

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Feature MIUI: Xiaomi firmware has a function “Smart switch” (Settings) → Wi-Fi → ⚙️ → Smart switching, which automatically switches your phone to the mobile network if the Wi-Fi is weak, sometimes it works wrong, turn it off if you notice frequent connection breaks.

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If Wi-Fi works but the sites don’t open, try manually prescribing DNS. In the connection settings, specify 8.8.8.8 (Google) or 1.1.1.1 (Cloudflare).

3. Software failures: When MIUI firmware is to blame

MIUI firmware is known for its abundance of features, but sometimes they conflict, leading to loss of the Internet, for example, after an update, the configuration of network protocols may fly, or background processes will begin to block traffic.

Signs of software failure:

• 🔄 Internet disappears after phone reboot.
• 📱 B Settings → The phone. → Version. MIUI Update is available, but it is not installed.
• 🚫 When you try to turn on mobile data, an error appears "Activation error".
• 🔧 In the system logs (you can see through the DevCheck application) there are errors such as "NetworkStack crashed".

How to fix it:

1. Reset your network settings. Go to Settings → System & Device → Settings Reset → Reset your Wi-Fi, mobile network and Bluetooth settings. Attention: This will delete all saved Wi-Fi passwords!
2. Turn off battery optimization for system applications. Go to Settings → Battery → Battery Optimization, find Google Play Services and Phone Services, select No Limits.
3. Install the latest MIUI update. Sometimes network bugs are fixed in new versions. To check for updates, go to Settings → About Phone → System Update.

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If the Internet is gone after the MIUI update, try to roll back to the previous version via Fastboot (instructions in section 7).

4. Application conflict: who is blocking your Internet

Many Xiaomi users experience a situation where the Internet suddenly disappears after installing a new app or changing security settings.

• 🛡️ Antiviruses (Avast, Kaspersky, 360 Security) – block traffic, considering it suspicious.
• 🔒 VPN-NordVPN (ProtonVPN) – can “hang” in the background, redirecting all traffic through a broken server.
• 📱 Applications to save traffic (Datally, GlassWire) – limit the background Internet.
• 🔧 Settings MIUI — Restriction of background traffic" function in Settings → Connections and sharing → Use of data.

How to find and resolve conflict:

1. Run your phone in safe mode. To do this, press the power button, then tap it long enough to turn it off, and you'll be prompted to go to safe mode, and if it's running the Internet, it's the third-party app's fault.
2. Check application permissions. Go to Settings → Apps → Permissions Management → Access to data and see which programs have access to mobile data and Wi-Fi.
3. Turn off VPNs and antiviruses. Sometimes they conflict with MIUI system services. Try removing them or adding browser and instant messenger exceptions.

Important! Xiaomi phones with MIUI 13+ have a hidden Network Protection feature that can block suspicious connections. To turn it off, type ##4636## in the Phone app, select Phone Information, and find "Wi-Fi and Mobile Network."

5. Hardware malfunctions: when without service can not do

If none of the software methods worked, the problem could be hardware. Xiaomi phones (especially budget models like the Redmi 9A or POCO M3) sometimes suffer from:

• 📡 Damage to the antenna module - after falling or getting moisture.
• 🔌 Malfunctions SIM-Reader – contacts oxidized or soldered.
• 🔋 Power module failure – the phone cannot stably supply voltage to network chips.
• 📶 Chip problem. Wi-Fi/Bluetooth (For example, Broadcom. BCM4375 Xiaomi Mi 10).

How to diagnose a hardware malfunction:

⚠️ Note: If your Xiaomi fell into the water or was subjected to a strong vibration (for example, after a fall), do not try to disassemble it yourself.

6.Problems with the operator or provider: when it is not your fault

Sometimes the Internet is lost not because of the phone, but because of external factors.

• 📡 Accident at the operator's station (MTS, Beeline, Tele2, MegaFon).
• 🔄 Provider-side software updates (e.g., change of authentication protocol).
• 📵 Lockdown IMEI (If the phone is unofficially purchased or is blacklisted).
• 🌐 Problems with DNS Service Provider (websites are not opened, but messengers are working).

How to check:

1. Put it in. SIM-If the internet doesn't work there, the operator has a problem.
2. Call the hotline (e.g. *111# for MTS) and check if there are any accidents in your area.
3. Check the IMEI. Dial *#06# and compare the number to the one on the box. If they don't match, the phone could have been recovered from the theft (and locked).
4. Use an alternative DNS. In your Wi-Fi or mobile settings, write 8.8.4.4 (Google) or 77.88.8.8 (Yandex).

⚠️ Note: If you bought Xiaomi with your hands and it suddenly stopped catching the network, check it on the IMEI.info website.Some phones brought from China may be tied to local operators and not work in Russia.

7.Extreme measures: resetting and flashing

If all previous methods have failed, radical methods remain:

• 🔄 Hard Reset – Resets the phone back to factory settings.
• 📱 Fastboot Flashing – if the system files fail.
• 🔧 Reverse to the old version MIUI — If the bug appeared after the update.

Instructions for resetting settings:

1. Make a backup of the data through Settings → About Phone → Backup.
2. Go to Settings → About Phone → Resetting → Delete all data.
3. Enter your password (if required) and confirm the reset.
4. After restarting, set your phone as new.

Fastboot Flashing (for advanced users):

1. Download the official firmware for your model from https://new.c.mi.com/global/miuidownload/index


2. Install the drivers and the Mi Flash Tool.




3. Turn off the phone, press Volume Down + Power to enter Fastboot mode.




4. Connect your phone to your PC and run the firmware through the Mi Flash Tool.

⚠️ Warning: Unprofessional flashing can turn your phone into a brick.If you're not sure about yourself, contact Xiaomi's service center.

FAQ: Frequent questions about the Internet problems on Xiaomi