Modern Samsung smartphones are equipped with advanced wireless communication modules capable of operating in two main ranges: 2.4 GHz And 5 GHzUsers often need to forcefully change the connection frequency to increase download speeds or, conversely, improve signal stability in remote rooms. The standard Android operating system allows for flexible control of these parameters, but hidden menus and features of One UI firmware can be confusing for inexperienced users.
In this article, we'll take a detailed look at how to change the Wi-Fi frequency on a Samsung phone, using both built-in tools and engineering methods. You'll learn about the physical differences between the bands, learn how to configure your router for priority connection, and understand why your smartphone sometimes ignores a faster network. Warning: Interfering with system settings requires care.
It's important to understand that the smartphone itself doesn't always dictate connection conditions. Access point configuration is often the deciding factor. If you want to achieve maximum performance in games or 4K streaming, setting the correct frequency is critical. Let's figure out which band to choose for your specific situation.
Differences between the 2.4 GHz and 5 GHz bands on Samsung devices
The fundamental difference between the two main Wi-Fi frequencies is the balance between data transfer speed and signal range. Range 2.4 GHz is an older standard that provides broad coverage but has limited bandwidth. This means the signal will penetrate thick walls and ceilings better, but the maximum speed will rarely exceed 40-50 Mbps in noisy environments.
In turn, the frequency 5 GHz offers significantly higher speeds and lower latency (ping), which is critical for online gaming. However, this range has a significant drawback: it penetrates physical obstacles less effectively. If there is a barrier between your router and your Samsung Galaxy If there is a load-bearing wall or metal cabinet, the signal may be completely lost.
The choice of frequency also depends on the number of connected devices. In apartment buildings, the 2.4 GHz band is often congested with neighbors' routers, microwaves, and Bluetooth devices. Switching to 5 GHz eliminates this interference, as this spectrum is used less frequently and has more available channels.
It is worth noting that modern Samsung flagships support the technology Wi-Fi 6 (802.11ax), which operates effectively in the 5 GHz band. If your router also supports this standard, you'll get the most out of your network. Older phone models may switch less efficiently.
Checking your current connection frequency in Android settings
Before changing any settings, you need to make sure your phone is currently using the correct frequency. On Android, connection information is often hidden in the "About Phone" menu or in the detailed network status. To get started, open the standard settings. Settings your device and go to the connections section.
Click the name of the Wi-Fi network you're connected to or select "Network Properties." In the window that opens, look for the "Frequency" line. It will display either 2400 MHz (corresponding to 2.4 GHz) or 5000+ MHz (5 GHz band). On some Samsung firmware versions, this information is displayed directly below the network name.
⚠️ Attention: If the frequency isn't displayed in the network properties, it may mean the manufacturer has hidden this information in the standard interface. In this case, use third-party utilities or the developer menu.
An alternative way to check is to use the engineering menu or analysis applications such as WiFi AnalyzerThey display not only the current frequency but also the signal level in decibels (dBm), which helps understand the connection quality. For the average user, it's enough to know that values above -70 dBm are considered acceptable, while values below -80 dBm indicate a very weak signal.
Understanding your current connection status helps diagnose problems. If you're close to the router but your phone is using 2.4 GHz, you're not utilizing your full speed potential. Conversely, in a distant room, forcing your phone to use 5 GHz can cause constant connection drops.
How to force a Samsung device to connect to 5GHz using the developer options
The most effective way to influence the frequency selection from the smartphone side is to use the hidden developer menu. In modern versions of Android and the shell One UI Samsung has added a forced band selection feature. To activate this menu, quickly tap the build number seven times in the "About phone" section.
After enabling developer mode, return to the main settings menu. A new item, "Developer options," will appear at the very bottom of the list. Find the Wi-Fi section and find the option. "Wi-Fi Preferred Band"**. By default, it's set to "Automatic."
☑️ Activate developer mode
Change the value to "Prefer 5 GHz" or "5 GHz Only." This will instruct the network module to ignore 2.4 GHz networks, even if the 5 GHz signal is weaker. However, be careful: if your router doesn't support 5 GHz or you move too far away, your internet connection will simply disappear.
⚠️ Attention: After changing settings in the developer menu, be sure to reboot your smartphone. Without a reboot, the Wi-Fi module may not apply the new network scanning priorities.
Sometimes after a firmware update Samsung The band selection option may disappear or move. In such cases, the system relies on its own roaming algorithms. If the developer menu doesn't help, the problem most likely lies in the router's settings.
Setting up network separation (SSID) on a router
Users often can't choose a frequency because their router broadcasts the same network (SSID) for both bands. This is called Smart Connect or Band Steering. The router decides where to connect the client. To gain full control, you need to separate the networks.
Access your router's admin panel via a browser (usually 192.168.0.1 or 192.168.1.1). Find the Wireless section and disable the band aggregation feature. Give it different names: for example, MyWiFi_2.4 And MyWiFi_5GThe password can be left the same.
Once the networks are separated, your Samsung phone will see them as two separate connections. You'll be able to manually select the network ending in "5G" from the list of available Wi-Fi networks. This ensures you'll always be connected to the high-speed band while you're within range.
| Parameter | 2.4 GHz | 5 GHz |
|---|---|---|
| Maximum speed | Up to 150-300 Mbps | Up to 866 Mbps and higher |
| Range of action | High | Medium/Low |
| Permeability of walls | Good | Bad |
| Noisiness | High (many neighbors) | Low |
Therefore, separating the networks is the best compromise: the smart home is on 2.4, and phones and TV are on 5 GHz.
What should I do if my router doesn't allow me to separate networks?
Some ISP routers are blocked by their carrier. In this case, you can try changing the Wi-Fi mode to "802.11ac/n only" in the settings. This will forcefully disable the older standard, but this may disable older devices.
Resetting network settings and troubleshooting connection errors
If you've changed your router settings, but your Samsung phone stubbornly connects to a slow band or displays an "Error Obtaining IP Address" error, you need to reset your network settings. This won't delete your photos or contacts, but it will forget all your Wi-Fi passwords and Bluetooth settings.
To do this, go to Settings → General Settings → Reset → Reset Network SettingsConfirm the action and wait for the communication modules to reboot. After enabling, re-enter the password for your new 5 GHz network. This often resolves issues with caching old connection profiles.
Another common issue is a static IP address. Make sure your phone's advanced Wi-Fi settings are set to obtain an IP address automatically (DHCP). Manually assigning an address may conflict with your router settings if you've changed the frequency band.
⚠️ Attention: The settings interface may vary depending on your Android version (11, 12, 13, 14) and Samsung model (A, S, Note series). Look for similar items if the menu names differ.
It's also worth checking if power saving mode is enabled. In some scenarios Samsung It may force Wi-Fi to switch to 2.4 GHz to save battery if the screen is off for long periods of time. Disable "Adaptive power saving" to test.
Using third-party apps to manage Wi-Fi
If standard tools fail to achieve the desired result, specialized applications from the Google Play Market come to the rescue. Programs like WiFi Man, Fing or WiFi Analyzer allow you to see a detailed picture of the ether.
By using WiFi Analyzer You can see which channels are occupied by your neighbors. If all your neighbors are on channel 1 in the 2.4 GHz band, your phone will experience interference. The app will suggest which channel to switch your router to or confirm that 5 GHz is significantly freer in your home.
Some advanced utilities allow you to create connection profiles. For example, you can set a rule: "Only connect to 5 GHz at home, and automatically at the office." This is especially useful for users who frequently move between locations with different equipment.
Do I need root access to change the frequency?
Basic priority changes via the developer menu don't require root access. Deeper intervention in the Wi-Fi module drivers requires superuser privileges, but this is dangerous and may void the warranty.
Using third-party software can also help diagnose hardware issues. If the app shows that the phone's 5 GHz module isn't scanning the airwaves at all, even though it worked before, there may be a firmware glitch or a faulty antenna module.
Frequently Asked Questions (FAQ)
Why can't my Samsung see the 5GHz network?
Your phone may be too old and not support this standard (models before 2015). Also, check your router's region settings—some 5 GHz channels are restricted in certain countries and may be hidden.
Does Wi-Fi frequency affect mobile internet speed?
No, the Wi-Fi frequency only affects the connection speed within the local network and the internet access speed through the router. It has no effect on mobile data speeds (4G/5G from the SIM card).
Can 5 GHz frequency be harmful to health?
No, the radiation from Wi-Fi routers is within a safe range and is not ionizing. The signal strength is negligible compared to the radiation emitted by a smartphone during a call.
How do I reset all my Wi-Fi settings back?
Simply select the "Automatic" option in the developer menu or reset the network settings to make your phone start choosing the optimal frequency automatically again.