The sudden disappearance of the Wi-Fi icon on the screen of a Xiaomi smartphone is always an unpleasant surprise that can catch the owner by surprise at the most inopportune moment: You open the messenger to respond to an urgent message, or try to download the navigator, but instead of the usual network icon you see a void or an alarming exclamation point. In such situations, the device becomes a practically useless “brick” without access to the global network, which causes natural irritation and panic in the user.
The problem of missing Wi-Fi or breaking the connection is not unique and can be found in models of different price segments. It can be either a software failure of the MIUI operating system or the new HyperOS, or a deeper hardware malfunction of the communication module. Understanding the root cause is already half the success in restoring the gadget, so do not rush to conclusions about the breakdown.
In this article, we will take a look at all possible scenarios, from simple router errors to complex driver conflicts, and provide step-by-step instructions for their elimination. You will learn how to correctly diagnose the network condition, what hidden settings can interfere with stable operation, and in which cases you really need to contact the service center.
Primary diagnostics and router inspection
Before you get into the thick of the engineering menu or drop your phone to factory settings, you need to exclude external factors. Very often the problem lies not in the smartphone itself, but in the router that distributes the Internet. If Wi-Fi is lost on only one device, and on others (tablets, laptops, TVs) the network works stably, then the focus shifts to the settings of Xiaomi itself.
However, if the network is gone everywhere, or the router is acting strangely, it is worth trying a banal but effective procedure for rebooting the equipment: pull the power cord from the socket, wait 15-20 seconds and turn it back on, which will clear the router's memory buffer and restart all network services.
- 🔌 Check if the indicators on the router are on and if the light bulb is flashing WLAN/Wi-Fi.
- 📱 Make sure that on other devices (laptop, tablet) the Internet works correctly.
- 🔄 Try switching your smartphone to mobile internet (LTE/5G) to check the efficiency of the communication module as a whole.
Also worth paying attention to the frequency range. Modern routers often operate in two bands: 2.4 GHz and 5 GHz. The 5 GHz range provides high speed, but has a shorter range and passes through walls worse. If you are far from the router, the phone can simply "lose" the 5 GHz network, creating the illusion of missing Wi-Fi.
Basic software solutions: Reboot and flight mode
The easiest and often overlooked way to fix the problem is to reboot the smartphone’s network modules. The Android operating system on which the MIUI shell is built tends to accumulate temporary errors in the processes responsible for communication, which can block the Wi-Fi adapter from working.
First, try activating Flight Mode, turn it on, wait 10-15 seconds, and then turn it off. This action forcefully shuts down all radios (GSM, Wi-Fi, Bluetooth, GPS) and starts them again from scratch. In most cases, this helps if the Wi-Fi is lost due to a temporary freeze driver.
⚠️ Warning: If the Wi-Fi icon never appears in the notification curtain or settings after the flight mode is turned on, this may indicate a more serious firmware failure or hardware problem with the antenna module.
If toggling doesn't work, reboot your device completely -- not just shutting down the screen, but restarting the system through a power menu or a combination of buttons -- it will clear RAM and complete all background processes that may have conflicted with the network stack.
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Try to close all heavy applications before rebooting, especially those that are actively using the network, such as torrents or streaming services.
Remove network and reset network settings
Often the reason Xiaomi doesn’t have Wi-Fi or is permanently disabled is because it has stored network profiles with incorrect settings, and the system may have memorized an old password, an incorrect type of encryption, or a static one. IP-Address that now conflicts with the current router configuration.
The first step is to “forget” the network problem. Go to Settings → Wi-Fi, click on your network name (or the arrow next to it), and select “Delete” or “Forget Network” and then try to reconnect by entering your password.
If deleting the network didn’t work, the more radical but secure step is to reset your network settings, which won’t affect your personal files, photos or contacts, but will delete all stored Wi-Fi passwords, Bluetooth settings, and mobile network settings.
☑️ Resetting network settings
To perform the reset, go to Settings → Connections and Sharing → Reset Wi-Fi, mobile network and Bluetooth. At the bottom of the screen will be a reset button. Once rebooted, the phone will be like new in terms of network connections, which often eliminates software conflicts.
Problems with DNS and static IP
One of the hidden reasons why Wi-Fi on Xiaomi “sees” the router but doesn’t have access to the Internet (or constantly loses connection) is because of errors. DNS (Domain Name System: Providers are defaulting to DNS-servers that may be slow or incorrect to process requests.
To fix this, you can prescribe reliable public DNS-Addresses, for example, from Google or Cloudflare. Go to your Wi-Fi settings, click on the arrow next to your network and find Settings. IP". Switch mode to C. DHCP Static (or “Manually").
In the fields that open, you will need to enter the following values (the remaining fields, such as: IP-The address and gateway are usually filled in automatically, but they need to be checked):
- 🌐 DNS 1: 8.8.8.8 (Google)
- 🌐 DNS 2: 1.1.1.1 (Cloudflare)
- 🔢 Network prefix: 24 (usually)
Once you save the settings, the phone will reconnect to the network, which often solves the problem when the Internet disappears immediately after you connect or the pages load endlessly, even though the Wi-Fi icon is on.
What to do if static IP doesn’t work?
Impact of MIUI and HyperOS Updates
Xiaomi smartphone owners know that system updates are a double-edged sword, bringing new functionality and security patches, and often contain bugs that disrupt communication modules, and if Wi-Fi is lost immediately after a firmware update, the cause is almost certainly in the code.
Xiaomi periodically releases hot patches (Hotfix) for critical errors. Check for updates manually by going to Settings → The phone. → Version. MIUI/HyperOS. Sometimes it helps to wait for the next major update that corrects the errors of the previous one.
In some cases, the problem is Wi-Fi Assistant or Network Acceleration, which are designed to improve connectivity by switching between Wi-Fi and mobile Internet, but in practice often cause connection breaks. Disable them in the Wi-Fi settings menu (usually in additional settings or a three-point menu).
| Symptoms. | Probable cause | Method of decision |
|---|---|---|
| Wi-Fi is gone after an update | Bug of the new OS version | Reset network settings, waiting for a patch |
| There's a network, there's no Internet. | DNS or router problems | Changing DNS, restarting the router |
| Persistent communication breaks | Network Acceleration | Disable Wi-Fi Assistant |
| Grey Wi-Fi badge | Hardware failure of the module | Service repairs, warming up (temporarily) |
⚠️ Note: If the problem started after installing custom firmware (Global on the Chinese version or vice versa), there is a high probability of incompatibility of regional modem settings.
Hardware malfunctions of the Wi-Fi module
Unfortunately, there is no physical breakdown: Xiaomi smartphones, especially those with metal body or after falls, can leave the antenna plume or fall off the Wi-Fi/Bluetooth chip (since they are often combined into one module).
A typical sign of a hardware problem is when the Wi-Fi section is completely missing from the settings menu, or when you try to turn on the slider, the slider immediately returns to the off position. Also indicated by a gray or faded Wi-Fi icon in the curtain that does not respond to actions.
If software methods (reset, flashing) don't work, and the phone has fallen or fallen into the water before, it's likely to require soldering, which is what service centers call "rebolling" a module or replacing an antenna unit, and it's not software-based to solve this problem on its own.
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If the reset to factory settings and flashing did not return Wi-Fi, and the icon on the menu is lit in gray color - in 95% of cases this is a hardware breakdown that requires repair in the service.
Specific settings for advanced users
For those who are not afraid to experiment, there is a hidden engineering menu where you can check the status of modules. Enter the code ##6484## (or #4636##) in the "calling" menu.
You can see the actual signal power and driver status here, and if Wi-Fi shows an error in the test or can't run network scanning, it confirms the problem at a low level, and in some versions of Android, cleaning the cache of Google Play Services helps, as it affects geolocation and network operation.
Another nuance is energy saving. Aggressive battery settings in MIUI can kill the Wi-Fi process in the background. Go to Settings → Battery → Screen time, find the system processes and make sure that they do not have a background limit.