Why Xiaomi doesn’t have Wi-Fi: a complete troubleshooting guide

Wi-Fi issues on Xiaomi smartphones are one of the most common complaints users have received, and according to service center statistics, up to 15% of calls are due to unstable wireless connections, and the problem can manifest itself in various ways, from complete lack of signal to periodic connection breakdowns, and in this article we will analyze all possible causes, from simple errors in settings to hardware breakdowns, and give step-by-step instructions for fixing them.

It's important to understand that Wi-Fi malfunctions are not always connected to the smartphone itself. 30 percent of the time, the router or ISP is to blame, not the phone. So let's start with diagnosing external factors, then move on to Xiaomi's settings and possible hardware defects. If you've tried to restart your phone and router, skip the first partition and get right to the software glitches.

Step 1: Diagnostics the problem – determine the type of malfunction

Before you fix anything, you need to understand exactly how the problem manifests, and the algorithm of actions depends on it, and here's a table with the main symptoms and their probable causes:

If your situation doesn't fall into any category, try connecting to another network (like a mobile hotspot from another phone), if Wi-Fi is working, it's your router or ISP, and if it's not, it's your smartphone.

Step 2: Check the router and external factors

So, to start with, the simplest thing is, the router side of the problem, and people often blame the phone when the router or network settings are at fault.

• 🔄 Reboot the router. Turn it off for 30 seconds, then turn it back on. This solves up to 40 percent of the connectivity problems.
• 📶 Check the Wi-Fi channel. If you have a dual-band router (2.4 GHz + 5 GHz), try connecting to a different range. 2.4 GHz channels are often congested, especially in apartment buildings.
• 🔒 Make sure that the filter is not turned on by MAC- addresses. Go to the router settings (usually at 192.168.0.1 or 192.168.1.1) and check the Wireless → MAC Filter section.
• 📡 Update the router's firmware. Outdated software can cause conflicts with modern smartphones.

If you have a Xiaomi Mi Router or another router from this company, pay attention to the Mi Wi-Fi settings. Sometimes resetting to factory settings helps (reset button on the back).

⚠️ Warning: If after rebooting the Wi-Fi router on Xiaomi started, but after a few hours it disappeared again - the problem may be overheating of the router. Check its temperature and ensure normal ventilation.

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If you have Xiaomi with Wi-Fi 6 support (Mi 10 and newer models), try turning on 802.11ax mode in the router settings – this can speed up the connection and eliminate cliffs.

Step 3: Software Glitches on Xiaomi – What to Do

If the router is OK, but the Wi-Fi on Xiaomi still doesn't work, the problem is the software on the phone.

1. Reboot your phone. It's banal, but it works 20 percent of the time. Hold the power button for 10 seconds, then select Reboot.
2. Turn on/off the plane mode. This resets all network settings. You can do this through the notification panel or in Settings → Connections → Airplane Mode.
3. Forget the network and connect again. Go to Settings → Wi-Fi, click on your network, select Delete (or Forget), then reconnect by entering your password.
4. Check date and time. Incorrect settings may block connection to some networks. Go to Settings → Additional → Date and time and enable Autodetermination.

If this does not help, we move on to more serious measures:

• 📱 Reset the network settings. This will delete all stored Wi-Fi networks, passwords and mobile Internet settings. Way: Settings → System → Reset → Network settings reset.
• 🔧 Update your firmware. Outdated software may contain errors in the Wi-Fi module. Check for updates in Settings → About Phone → System Update.
• 🛠️ Restore factory settings. Last resort, but sometimes necessary. Don't forget to back up the data! Path: Settings → System → Reset → Delete all data.

Backup contacts and photo | Write down passwords from Wi-Fi | Check Mi Account (is phone tied) | Take out SIM- card and memory card-->

Step 4: Specific MIUI bugs and how to get around them

MIUI shells are known for their "chips," but sometimes they interfere with normal Wi-Fi operation. Here are the most common bugs and ways to fix them:

1. The error "Save, WPA/WPA2 protection" appears when you connect to some public networks. Solution: Go to Settings → Wi-Fi → Additional → Network Notifications and turn off the option of Autoconnect to open networks.
2. Wi-Fi shuts down when you lock your screen. Aggressive battery optimization is to blame. Go to Settings → Battery → App selection, find Settings (app) and select No Limits.
3. If you have a supported model (Redmi Note 10 Pro, Mi 11 and later), but the function is not activated, check if it is enabled in the settings of the SIM- card: Settings → SIM- cards and mobile networks → Wi-Fi Calling.
4. Conflict with VPN. Some VPN- applications block Wi-Fi. Try disabling VPN or adding an exception to your network.

If you have Xiaomi with global firmware (e.g. Redmi Note 9 Global), but the phone is bought in China, changing the region can help.

1. Go to Settings → Additional → Region.
2. Choose India or Russia (depending on your firmware).
3. Reboot the phone.

⚠️ Warning: Some models (Poco X3, Redmi 9A) may lose Widevine L1 certification after a region change, which will degrade streaming quality on Netflix and Disney+. If critical, revert to the region.

Step 5: Hardware malfunctions – when you can not do without service

If all the software methods have been tried, but Wi-Fi on Xiaomi still doesn’t work, it’s a hardware breakdown.

• 📡 Wi-Fi module damage, often after falls or moisture, can be soldered off the motherboard or damaged.
• 📶 Antenna shatters. The antenna tracks on the board are very thin and fragile, and even a little mechanical pressure can damage them.
• 🔋 Power problems in the module: If the capacitors or chips that supply the Wi-Fi voltage fail, the module will not work.
• 🌡️ Overheating. If the phone is too hot, the Wi-Fi module can shut down for protection. Check the temperature in the engineering menu (code ##4636###).

How to diagnose a hardware malfunction:

1. Try connecting to Wi-Fi in Safe Mode, and if it's Wi-Fi, it's a problem in the software, if it's not, it's in the hardware.
2. Check if Bluetooth is working, and if it doesn't turn on, it's almost certainly damaged the combined module (Wi-Fi + Bluetooth).
3. Connect the phone to a PC and see if it's defined as a network device, and if it's not, it's a controller-level problem.

If you have confirmed a hardware malfunction, there are two options:

• 🔧 Self-repair (only if you have experience soldering BGA- chips!). Wi-Fi modules for Xiaomi can be found on AliExpress (for example, for Redmi Note 8 Pro — BCM4356/9).
• 🏥 Service appeal: The average cost of replacing a Wi-Fi module in Russia is 1500-3000 rubles, depending on the model.

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If Wi-Fi stopped working after falling, getting moisture or disassembling the phone, 95 percent of the time it's a hardware fault, and software won't help.

Step 6: Wi-Fi issues on specific Xiaomi models

Some Xiaomi models have unique Wi-Fi issues related to their design or firmware, and these are the most common:

If your model is not in the table, but the problem is specific, try searching the 4PDA or XDA Developers forums. Often users find non-obvious solutions for rare bugs.

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On Qualcomm Snapdragon models (like Poco F3), modem resets sometimes help. Select Phone Information → Modem Reset from the engineering menu.

Step 7: Alternative ways to connect to the Internet

If Wi-Fi on Xiaomi has not worked, but the Internet is urgently needed - there are several workarounds:

• 📱 Mobile Internet. Turn data on Settings → SIM- Maps and mobile networks. If the tariff is limited, watch the traffic.
• 🔗 USB-ethernet. With an adapter USB-C/OTG → Ethernet, you can connect your phone to wired Internet. It works on most models with MIUI 12 and later.
• 📡 Modem: Connect your phone to another device via USB or Bluetooth and distribute the Internet from it.
• 🌐 Cloud services: If you want to access files, use Mi Cloud, Google Drive or Telegram (bot @SaveToTelegram_Bot).

For models with Wi-Fi Direct support (Mi 10, Redmi K40), you can organize a local network with another device without a router:

1. Enable Wi-Fi Direct in Settings → Connections → Wi-Fi Direct.
2. On the second device, find your Xiaomi in the list of available devices.
3. Connect and use local file transfer or Internet sharing.

Step 8: How to Prevent Wi-Fi Problems in the Future

To avoid repeated failures, follow these guidelines:

• 🔄 Regularly update your firmware. Xiaomi often releases patches to fix network bugs.
• 🛡️ Don't install custom firmware (like LineageOS) unless you're sure it's stable. It can break Wi-Fi.
• 📴 Avoid overheating. Don't leave your phone in direct sunlight, and don't play heavy games when charging.
• 🔋 Watch the battery. If it's swelling, it can put pressure on the motherboard and cause Wi-Fi to malfunction.
• 📲 Don't set up power saving for network applications. Go to Settings → Battery → Application Energy Saving and add Settings and Wi-Fi to the exceptions.

If you frequently connect to public networks (in cafes, airports), turn on the option of Autoconnect to known networks in Settings → Wi-Fi → Additional. This will reduce the risk of connecting to unstable access points.

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On models with MediaTek (e.g. Redmi 9), Wi-Fi may not work as well because of poor driver optimization, and only a replacement of the firmware or module will help.

Frequently Asked Questions (FAQ)