Modern Xiaomi smartphones support wireless standards that provide high data rates, but by default the device often automatically selects the frequency of 2.4 GHz, which is characterized by greater range but lower bandwidth. Users seeking to get the maximum speed of the Internet for games or watching video in 4K, face the need to force the Wi-Fi module to switch to 5 GHz. This procedure is not always obvious, since the standard MIUI or HyperOS interface does not have direct range switches in the upper curtain menu.
The problem is that the algorithms prioritize signal stability over speed, so the phone can cling to a 2.4GHz long-distance network even if the router is delivering a powerful 5GHz signal. There are several methods to solve this problem, from simply restarting the module to using the engineering menu and the developer's hidden settings. It's important to understand that the success of the operation depends not only on the phone's settings, but also on the configuration of your router.
In this article, we will discuss in detail all the available ways to force the transition to high-speed range, and also explain why your phone may not see the 5 GHz network at all. We will look at the standard Android system, Xiaomi-specific codes and router settings that affect the visibility of networks.
Why Xiaomi Phone Doesn't See 5GHz Network
Not all Xiaomi smartphones, especially the low-end Redmi series or older MI devices, are equipped with dual-band Wi-Fi modules. If your device specifies only 802.11 b/g/n without an ac or ax prefix, then the hardware is physically unable to receive a 5GHz signal.
The second common reason is the region of use and software restrictions: Some countries have strict regulations regarding the use of radio frequencies, and firmware designed for these markets (for example, Indian ROM or some versions of Global) can programmatically block certain channels in the 5 GHz band.
⚠️ Note: If you are convinced after checking the specifications that the Wi-Fi module is dual-band, but the 5GHz network is still missing, the problem may be lurking in the distance.The 5GHz signal has less penetration through walls compared to 2.4GHz.
It is also worth checking whether the router is enabled mode "Smart Connect" or the combination of networks under one name (SSID). In this case, the phone decides on which frequency to work on, and often mistaken in favor of a more "long-range" phone" 2.4 GHz – Forced switching often requires splitting networks by giving them different names, such as, Home_WiFi and Home_WiFi_5G.
Checking the support ranges in the engineering menu
The first step for advanced users is to test the real-world capabilities of the Wi-Fi module through Xiaomi’s engineering menu, which is a hidden partition that allows you to diagnose the operation of the hardware without installing third-party applications. To get there, open the Phone app and type the combination ##6484##. If the menu does not open, try ##4636#, although it is often blocked on new versions of MIUI.
The CIT menu that opens, you need to find a Wi-Fi test item, usually called WiFi or WLAN Test, which often displays detailed information about supported standards and frequencies. Look for lines that mention 11a, 11ac or 11ax, which confirm 5GHz support. If you see only 11b/g/n, you won't be able to programmatically enable 5GHz.
In some versions of the firmware, you can reset network modules through the engineering menu, which sometimes helps to wake up the blocked range. However, be careful: changing unknown parameters in this menu can lead to unstable communication.
Router Setup: SSID Separation and Channel Selection
Often the reason for the inability to switch lies not in the phone, but in the settings of the router. If the router broadcasts 2.4 and 5 GHz networks under the same name (SSID), the Xiaomi smartphone can ignore the faster range, preferring the one where the signal is stronger, even if the speed is lower.
In the Wireless Settings section, find the option for bandwidth integration, which can be called Smart Connect, Dual Band Aggregation, or simply tick "Same SSID for 2.4G and 5G." This feature needs to be turned off. Then, set unique names for each network, for example, by adding suffix " 5G" to the main network name, which will allow the phone to see two different access points.
Also critical is the choice of broadcast channel. 5 GHz channels that may not be supported by the phone's regional settings. 80 MHz (or Auto) and select a specific static channel from the range 36-48 or 149-165, avoid DFS-channel (52-144), which can cause periodic communication breaks when radars are detected.
| Parameter | Recommended value for 5 GHz | Description of the impact |
|---|---|---|
| SSID (Name of the network) | Unique (separate from 2.4) | Allows the phone to distinguish ranges |
| Channel (Channel) | 36, 40, 44, 48 or 149+ | Avoiding overloaded frequencies |
| Channel width | 80 MHz | Maximum speed but less than radius |
| Security regime | WPA2-PSK / WPA3 | Provides compatibility and protection |
☑️ Checking router settings
Forced Switching Through Hidden Android Settings
In the Android operating system, which runs MIUI, there is a hidden developer menu that allows you to prioritize the frequency range. To activate this menu, go to Settings → About phone and quickly click 7 times on the MIUI version (or OS version). Once you have the message "You became a developer" return to the main settings menu.
Next, follow the path Additional → For developers. In the list of options, you need to scroll down to the "Networking" or "Networking" section. Find 5 GHz Wi-Fi preference (Preference 5 GHz network) or Wi-Fi frequency band. By default, there is the value "Auto" (Auto). Change it to 5 GHz only or Prefer 5 GHz.
Once this is changed, the phone may lose Wi-Fi connection for a short time. This is normal behavior, because the communication module is rebooted with new priorities. If the 5 GHz network is available and the signal is sufficient, the device will connect to it. If the 5 GHz signal is lost, the phone can lose the Internet completely until you return the setting to Auto mode.
⚠️ Warning: Forced 5 GHz only on the developer menu can cause the networks to disappear completely if you are away from the router. Use this method only for testing or in close proximity to the access point.
Using third-party applications to manage Wi-Fi
If the built-in tools don't work, you can use specialized software from Google Play. Analyzer applications like WiFi Analyzer or Wi-Fi Man not only show the load of channels, but also allow you to control the connection. Some of them have the "Prioritize 5GHz" function, which programmatically requests the system to connect to a faster network.
There are also network reset applications that can help if a bug creeps into your phone's configuration files. Before installing any software, read reviews carefully and check permissions. Be careful: apps don't have to give full device administrator rights, Wi-Fi management rights are enough.
One effective method using third-party software is to completely reset the network settings through the application, and then manually connect to the network with a name containing "5G." Often after a clean connection to a divided network, the phone "remembers" preference and in the future will choose this range with both signals.
Frequent problems and methods of their elimination
Even after completing all the instructions, users can encounter unstable high-speed Wi-Fi. A common problem is that the phone constantly jumps 2.4 GHz. This happens when the 5 GHz signal level drops below a certain threshold (usually around -75 dBm), in which case Xiaomi algorithms prioritize connection stability over speed.
Another problem is that there's no Internet connection when you connect to 5 GHz, even though the Connected status is burning. IP-addresses or misalignments DNS. Try changing the Wi-Fi settings on your phone IP s DHCP Static and prescribe DNS servers, for example, from Google (8.8.8.8). Also check if the router is not filtered. MAC-Addresses that can lock a device within a certain range.
If nothing works, consider resetting the network settings on the phone itself.This action will delete all stored Wi-Fi passwords and Bluetooth settings, but often resolves communication module software conflicts.The path to reset: Settings → Connection and Sharing → Reset Wi-Fi, mobile networks and Bluetooth.
Range comparison: when to use 2.4GHz best
Despite the obvious advantages of 5GHz in speed, it is not worth giving up the 2.4GHz band completely.It has better penetration through concrete walls and floors. If your router is in another room or behind two walls, the 5GHz signal may be too weak for comfortable use, leading to permanent connection breaks.
In addition, many smart home devices (light bulbs, sockets, vacuum cleaners Xiaomi) operate exclusively at 2.4 GHz. Attempting to connect them to a 5 GHz network is doomed to failure. Therefore, the optimal strategy is to have two active networks: 5 GHz for smartphones, TVs and consoles, and 2.4 GHz for peripherals and work in the far corners of the apartment.