How to speed up WiFi on Xiaomi phone: the complete guide

Slow internet on a smartphone can ruin even the most enjoyable evening, turning watching a movie into an endless wait for buffering. Owners of Xiaomi, Redmi and POCO devices often face a situation where the router produces high speeds, but the phone persistently shows low values, this can be due to both software limitations of the MIUI shell or HyperOS, and with incorrect network settings.

Before you blame the provider or rush to buy new equipment, it is worth conducting a deep diagnosis of the gadget itself. Modern smartphones have many hidden parameters that affect connection stability. In this guide, we will discuss effective methods that will help speed up WiFi on Xiaomi without using third-party software and root rights.

Optimization starts with understanding the current situation, often the problem lies in the accumulated cache of network services or conflict. IP-Resetting network settings to factory values eliminates 80 percent of the software errors in the connection, but if you want to maximize performance, you need to fine-tune it more.

Diagnostics of current speed and identification of bottlenecks

The first step should always be to objectively assess the quality of the connection, do not rely on subjective sensations of "brake or not." Use specialized measurement applications such as Speedtest by Ookla or built-in analysis tools. Run the test in the vicinity of the router, and then move to the room where problems usually arise.

Not only do you look at download speeds, but you also look at ping and jitter. High ping indicates delays in packet transfers, which is critical for online gaming and video calls. If the speed is significantly lower than the rate stated, check if the background processes that consume traffic are running.

• 📉 Check the current speed through the browser or the Speedtest app.
• 📡 Make sure that the WiFi indicator shows full or near full signal strength.
• 🔄 Reboot your router and smartphone to update DHCP-leases.
• 📱 Turn it off. VPN Proxy servers during testing.

It's important to understand the frequency difference. If your router is dual-band, but your phone is connected to a 2.4 GHz network, you can't physically get high speed in an apartment building because of the noise of the air. Switching to 5 GHz often solves the problem instantly.

Switching to 5 GHz network and changing the channel

The 2.4GHz range is the most congested, as it not only runs neighbors' WiFi networks, but also Bluetooth devices, microwave ovens and wireless headphones. Xiaomi smartphones support 802.11ac and newer, allowing you to work in a freer 5GHz band.

To switch, go to WiFi settings and find a network with the ending " 5G" or similar designation. If such a network is not listed, it is possible that your router does not give a signal in this range or combined networks under one name (Smart Connect), in the latter case, disable the Smart Connect function in the router settings by dividing the networks.

⚠️ Attention: 5GHz is less than 2.4GHz. Walls and overlaps quench it much more. If you're far from the router, the speed may drop due to signal loss despite less bandwidth.

The channel width is also worth experimenting with. In router settings (which you need to access through the browser) for the 5 GHz band, it is recommended to set a channel width of 80 MHz. This will ensure maximum bandwidth. For the 2.4 GHz band, the optimal width remains 20 MHz, since 40 MHz in this range often leads to instability.

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Use the WiFi Analyzer app to find the least congested channel in your home and set it statically in your router settings.

Setting up DNS-servers to speed up response

The slow internet is actually slow. DNS (Domain Name System: When you enter a site address, the phone asks the provider for it. IP-- The server address. DNS-The server of the provider is overloaded, the site will be open for a long time, even if the communication channel is wide. DNS Public and fast servers from Google or Cloudflare are doing wonders.

In the MIUI and HyperOS shell, you can do this in two ways: one is through the specific connection settings; the other, more modern and reliable, is through the Private DNS menu, which encrypts requests and works for all networks at once.

To set up a private DNS, go to Settings → Connection & Sharing → Private DNS. Select the option “Host Name of the DNS Provider” and enter the address:

dns.google

Alternatively, Cloudflare offers:

1dot1dot1dot1.cloudflare-dns.com

After saving the settings, it is recommended to turn on the air mode for 5 seconds and turn it off. This will force the network to reconnect with new parameters. You will notice that the pages begin to "respond" faster, the errors "Can not find the page" disappear.

Resetting network settings and cleaning the cache

Errors in network configurations are a scourge of any Android device, and over time, old profiles, incorrect routing and cached data accumulate in the system, which interfere with the correct operation of the WiFi module.

This operation is secure for your personal data: photos, contacts and apps will stay in place, but you will have to re-enter passwords from all WiFi networks and reintroduce Bluetooth devices, a necessary sacrifice for stability.

To perform a reset on Xiaomi:

1. Open the Settings.
2. Go to Connect and Sharing (or “Advanced Settings” in older versions).
3. Find Reset WiFi, Mobile Networks and Bluetooth.
4. Click the Reset button at the bottom of the screen and confirm the action.

After the reboot, the system will create new, clean configuration files for the network module.This often solves problems when the phone "sees" the network, but can not get the network. IP-address or permanently lose connection.

Optimization of the WiFi module in the engineering menu

For advanced users, deeper configuration is available through the engineering menu. Here you can change the.region code (region) of the WiFi module, which affects the permissible signal power and the number of channels available. By default, phones designed for sale in Russia / CIS may have restrictions.

To enter the engineering menu, open the Phone application and type the code:

##6484##

In the CIT menu that opens, look for the WiFi-related section (often called WiFi or Wireless) where you can check the real-time signal strength (RSSI). The normal value is between -30 and -60 dBm. If values are below -80 dBm, the hardware problem is or there is a strong attenuation.

⚠️ Warning: Do not change the values in the engineering menu unless you are sure of their purpose, JP or US on the European model, it can cause the phone to stop seeing some channels or to work in violation of the law.

Impact of energy saving and background processes

The aggressive MIUI Optimizer energy-saving system often strangles the WiFi module to save battery power. The phone can reduce the receiver power or completely disable network scanning in the background, which causes the Internet to catch up with a delay when unlocking the screen.

Check battery settings for system processes. Go to Settings → Applications → All applications, click three dots in the corner and select Show System. Find WiFi-related processes (e.g. Wi-Fi, Android System), and set the power saving mode to No Limits.

• 🔋 Disable Smart Limitation for System Network Services.
• 🚫 Turn off the “Traffic Saving” function in WiFi settings.
• ⚡ In "Flight" mode, sometimes reconnecting modules helps.
• 📲 Remove cleaners and speed boosters from third-party sources.

Also, you should disable the WiFi Assistant feature, which automatically switches your phone to mobile Internet if the WiFi signal seems weak, which can create an illusion of instability, and you can find it by Settings → WiFi → WiFi Assistant.

When Software Methods Are Powerless: Hardware Problems

If the reset, the change of the DNS, the flashing didn't help, it might be the hardware. The antennas in Xiaomi smartphones are located around the perimeter of the case. The fall of the phone, especially from a height, could lead to detachment of the antenna module or damage to the plume.

Another reason is that contacts oxidize after moisture hits, and even if the phone doesn't sink, the high humidity in the bathroom or kitchen does its job over time, and in such cases, software acceleration of WiFi on Xiaomi is impossible, you need to visit the service.

Signs of hardware breakdown:

1. WiFi is turned on, but the list of networks is empty even point-blank to the router.
2. A gray WiFi icon in a status bar that is not activated.
3. The phone warms up strongly in the area of the camera when trying to turn on WiFi.
4. Permanent communication breaks regardless of the distance to the router.

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If a factory reset (full wipe data) does not fix the WiFi problem, the probability of a hardware malfunction of the module is more than 90%.

FAQ: Frequently Asked Questions