Mobile internet has become an integral part of modern life, and situations often arise where you need to provide network access to other devices using your smartphone. Device owners Xiaomi Redmi 4X They can easily transform their gadget into a full-fledged wireless router, which is especially useful when traveling or when there is no wired connection.
The process of activating modem mode in the shell MIUI The implementation is fairly simple, but the variety of firmware versions and security settings can sometimes confuse users. In this article, we'll cover all setup steps in detail, from basic enablement to fine-tuning the radio module's parameters for stable operation.
You don't need advanced technical knowledge to set up a local network through your phone. Just follow the steps below, and you'll be able to share mobile traffic with a laptop, tablet or other smartphone in minutes.
Preparing the device and checking the settings
Before you start broadcasting the signal directly, you need to make sure that your Redmi 4X Ready to act as a hotspot. First, check that the SIM card is activated and that you have network access. 3G/4G, since without an incoming Internet connection, distribution will be impossible.
It's also worth paying attention to the battery level. Operating as a router significantly increases power consumption, so it's recommended to keep the device connected to a charger or ensure the battery is at least 30-40% charged.
It's important to check your mobile carrier's data limits. Some plans may limit speed or data volume when using this feature. Tethering, which may result in unexpected charges or blocked access.
⚠️ Important: Before actively sharing the Internet, make sure that your tariff plan allows you to use your phone as a modem to avoid blocking by your telecom operator.
Make sure that the "Data Saver" mode is not enabled on your device in the global settings, as it may block data transfer for background apps and connected clients.
Basic hotspot activation
To start the router mode on Redmi 4X There are several ways, but the most reliable is to use the system settings menu. Open the main menu and find the section Settings, which is usually indicated by a gear.
In the list of parameters that opens, you must select the item Additional functions (In some versions of MIUI it may be called "More" or located directly in the main menu under the name "Access point and tethering"). Next, you should click on Wi-Fi hotspot.
☑️ Pre-launch check
On the next screen, you'll see a toggle switch that needs to be enabled. Once enabled, the system will automatically create a secure network, the default name of which includes your device model, for example, Redmi 4X_1234.
Immediately after turning it on, it's a good idea to check whether other devices can see your new network. If your laptop or tablet detects a Wi-Fi network with the specified name, then the basic setup was successful and radio module works correctly.
Setting up a network name and security password
Factory-installed default security settings often include a difficult-to-remember network name and a random password. For ease of use and your own security, we recommend changing these settings to something more understandable.
In the access point menu, click on the item Setting up an access pointHere in the field SSID (Network name) - You can enter any name using Latin characters, for example, "MyHomeWiFi" or "Office_Redmi." This will make it easy to identify your network in the list of available connections.
Pay special attention to the password field. The minimum length of a security key is typically 8 characters. It is recommended to use a combination of letters and numbers to prevent unauthorized access to your account. Internet channel.
In the same menu you can select the security standard. For Redmi 4X the optimal choice is the protocol WPA2 PSK, which provides reliable data encryption. Using an outdated standard WPA or an open network without a password is highly undesirable.
⚠️ Warning: Never leave your hotspot open (without a password), as anyone can connect to it and use your traffic, as well as potentially access your smartphone data.
After making changes, don't forget to click the button Save, otherwise the new settings will not take effect, and the device will continue to operate with the old settings.
Advanced Options: Frequency and Client Management
Owners Redmi 4X have the ability to fine-tune the frequency range, which can significantly impact connection speed and stability. In the access point menu, find the item Frequency range or "AP Band".
Here you can choose between 2.4 GHz and 5 GHz. Range 2.4 GHz It is more versatile: it penetrates walls better and is supported by most older devices, but can be overloaded by neighboring routers.
Range 5 GHz provides higher data transfer speeds and is less susceptible to interference, but has a shorter range and may not be supported by some older laptops or tablets.
This section also includes the "Device Management" or "Connected Devices" feature. Here you can see a list of all devices currently using your internet connection and, if necessary, block access for specific users without changing the master password.
Advanced users can set up a sleep timer. You can set the hotspot to automatically turn off if no one is connected for 1, 5, or 10 minutes, which will help save battery power.
Alternative ways to distribute Internet
In addition to classic Wi-Fi, Redmi 4X supports other methods of internet connection sharing that can be useful in certain situations. One such method is tethering. USB cable.
To do this, you need to connect your phone to the computer with a cable, then activate the switch in the access point menu USB modemThe computer recognizes the phone as a network connection, which often provides more stable speeds and simultaneously charges the device.
The second option is to use BluetoothThis method is significantly slower than Wi-Fi and USB, but consumes less power and allows you to connect devices that do not have a Wi-Fi module but support the DUN (Dial-up Networking) profile.
A third option, available in some MIUI versions, is generating a QR code for quick connection. You can generate an image in the hotspot menu, which guests can scan to connect to your network without manually entering a password.
| Distribution method | Transfer speed | Energy consumption | Compatibility |
|---|---|---|---|
| Wi-Fi hotspot | High | High | All modern devices |
| USB cable | Very high | Low (charging) | PCs, laptops, TV set-top boxes |
| Bluetooth | Low | Average | Old phones, navigators |
The choice of method depends on your current tasks: Wi-Fi or USB are better for watching videos, and Bluetooth can be used for transferring small amounts of text information.
Troubleshooting and optimization
Sometimes users encounter a situation where the hotspot is turned on, but the internet on connected devices is unavailable or unstable. First, check whether the hotspot is turned on. mobile Internet on the smartphone itself.
A common problem is a full network service cache. In this case, restarting the smartphone or temporarily enabling airplane mode and then disabling it to reconnect to the carrier's tower can help.
What to do if devices don't see the network?
If other devices aren't detecting your access point, try changing the frequency band from 5 GHz to 2.4 GHz. Also, make sure SSID hiding is disabled in the access point settings.
If the problem persists, the settings may be corrupted. APN (access points) of your operator. Check them in the section Settings -> Mobile network -> Access Point Names (APNs) and, if necessary, reset the settings to factory settings or enter the data manually, taking it from the operator’s website.
Another possible cause is a limit on the number of connected devices. Check the user limit in your hotspot settings; if it's set to 1 and you try to connect a second device, the connection will fail.
⚠️ Note: The menu interface and item layout may differ slightly depending on the version of the MIUI firmware installed (Global, China, Stable, Developer).
Questions and Answers (FAQ)
How many devices can be connected to Redmi 4X at the same time?
MIUI typically allows up to 10 devices to be connected simultaneously, but the actual number depends on the processor load and Android OS version. With a large number of clients, the internet speed will be split between them, which may result in slow performance.
Does the battery drain faster when the hotspot is on?
Yes, Wi-Fi tethering is one of the most power-hungry processes in a smartphone. The radio module operates at increased power, constantly transmitting and receiving data packets. It is recommended to use an external power source when using this mode for extended periods.
Is it possible to share Wi-Fi if the phone is connected to a Wi-Fi network?
On standard firmware Redmi 4X Without root access, simultaneous operation of the Wi-Fi receiver and transmitter is often impossible (the Wi-Fi Repeater function). Typically, when the Wi-Fi hotspot is turned on, the module switches to transmit mode, and the phone switches to mobile data (3G/4G).
Why do connected devices say "No Internet access"?
This means there's a connection between your phone and the carrier's router, but no data transfer is taking place. Check your SIM card balance, make sure your data limit hasn't been reached, and try changing the APN type or frequency band in the access point settings.