Smartphones of the series Redmi have long established themselves as reliable devices capable of not only receiving the internet, but also effectively sharing it. Owners of this model Redmi 7A People often wonder how to turn their gadget into a fully-fledged mobile router. This feature is indispensable when traveling, at the dacha, or in offices with unstable wired internet.
The process of activating modem mode in the shell MIUI While extremely simplified, it does have its own nuances that every user should be aware of. Proper setup will prevent battery drain and ensure a stable connection for connected devices. Below, we'll cover all setup steps and potential issues in detail.
The main goal is to create a secure and high-speed connection. To do this, you need to set the correct range and encryption parameters. If you plan to use your smartphone as your primary access point, it's important to understand how it works. WiFi hotspot in the Android system. This will help you optimize your device's performance.
Basic access point setup
The first step to sharing the Internet is to enter the network settings. Interface Xiaomi may differ slightly depending on the version MIUI, but the logic remains the same. You need to find the section responsible for wireless connections. It's usually located at the top of the settings menu.
After entering the menu, you need to select the item Wi-Fi hotspotThis is where all the key settings are located. Don't confuse this mode with Bluetooth modem or USB connection, as they have their own speed and device limits. WiFi remains the most universal option.
In the window that opens, you'll see an activation switch. Before enabling it, we strongly recommend clicking the name of your network or the "Configure Access Point" button. This will allow you to set a unique name (SSID) and a strong password to prevent neighbors or passersby from using your data.
- 📱 Open the Settings app from your home screen.
- 📡 Go to the "Connection and Sharing" or "Other Networks" section.
- 🔓 Select "Wi-Fi hotspot" to manage settings.
- ⚙️ Click "Configure hotspot" to change the name and password.
⚠️ Note: When enabling WiFi hotspots, mobile data must be active. If your phone's internet connection isn't working, you won't be able to share it with other devices.
After setting up the basic settings, you can activate the slider. The system will warn you that other devices may connect to the network. This is a standard shell warning. MIUI. Now yours Redmi 7A ready to work in router mode.
Selecting a frequency range and safety standard
One of the most important settings that is often forgotten is the selection of frequency band. In the access point settings menu on Redmi 7A You can choose between 2.4 GHz and 5 GHz. Understanding the difference between them is critical for connection stability.
The 2.4 GHz band is the most compatible. It's supported by virtually all devices, from older laptops to simple tablets. However, this band is often congested with signals from neighboring routers and household appliances like microwaves. This can lead to speed drops.
The 5 GHz band offers higher data transfer rates and is less susceptible to interference. However, it has a shorter range, and older devices may simply not detect it. If you're only sharing internet with modern devices, this option is best.
| Parameter | 2.4 GHz | 5 GHz |
|---|---|---|
| Compatibility | High (all devices) | Medium (new devices) |
| Speed | Standard | High |
| Range | Big | Less |
| Interference level | High | Short |
This section also configures the security standard. It is recommended to use WPA2-PersonalThis is the most secure encryption protocol currently available for mobile devices. Using an open network (without a password) is highly discouraged, as all your traffic will be visible to attackers.
What is AP Band?
AP Band is the frequency range your access point operates on. Selecting 5 GHz provides faster speeds but reduces signal range. If devices can't see the network, switch to 2.4 GHz.
Managing connected devices and limits
Controlling who uses your internet is an important part of using your smartphone as a modem. In the interface Redmi 7A There's a feature for viewing a list of connected users. You can see device names and their MAC addresses.
The system allows you to set a limit on the number of connected clients. The default limit is usually 10 devices, but this can be reduced. This is useful if you want to conserve battery life and avoid giving up all your bandwidth to a single heavy user.
If you notice an unknown device in the list, change the password immediately. You can also use the Blacklist feature or MAC address blocking, if available in your firmware version. This will ensure network security and save your megabytes.
- 👀 Regularly check the list of connected devices in the access point menu.
- 🚫 Set a limit on the number of users (for example, 3-5 devices).
- 🔒 Change your password at the first suspicion of unauthorized access.
- 📉 Turn off the access point when not in use to save power.
The device may become hot. If you use Redmi 7A If you use the device as a stationary access point for a long time, it is better to remove the protective cover for better heat dissipation.
☑️ Access point security check
Connection problems and their solutions
Sometimes users encounter a situation where other devices don't see the network or can't connect to it. Most often, the problem lies in incompatible encryption standards or frequency bands. If your laptop doesn't see the network, try forcing it to switch to the 2.4 GHz band.
Another common cause is a full network settings cache. In this case, resetting the network settings helps. To do this, go to Settings → Connection and sharing → Reset Wi-Fi, mobile networks, and BluetoothThis action will not delete your personal files, but it will forget your saved WiFi passwords.
⚠️ Note: The menu interface may differ depending on the MIUI version. If you don't find the reset option, search for "Reset" in the settings.
It's also worth checking if power saving mode is enabled. Aggressive power saving can disable the WiFi module if the smartphone's screen is off. In the battery settings, find the app responsible for the hotspot (usually a system process) and disable it from saving power.
If the problem persists, try restarting your smartphone. This is a classic method that resolves most temporary software glitches in the radio module. Redmi 7AAfter rebooting, check the distribution again.
The impact of Wi-Fi distribution on battery and heating
Using a smartphone as a router is resource-intensive. The radio module operates in constant transmission and reception mode, which leads to increased power consumption. Battery Redmi 7A The 4000 mAh capacity can be discharged in 4-6 hours of active distribution.
When operating, the access point generates significant heat. The processor and modem become hot, which can lead to throttling (reduced performance) or even temporary disabling of the hotspot function to protect the components. Do not cover the smartphone with a blanket or pillow while it's in use.
To minimize damage to the battery, it is recommended:
- 🔋 Connect your smartphone to a charger during distribution.
- ❄️ Remove the thick protective cover to improve cooling.
- 📉 Reduce screen brightness or turn it off completely.
- 🚫 Do not use your phone for games or heavy tasks during the distribution.
Constant 24/7 operation can quickly wear out the lithium-polymer battery. If you need a constant Wi-Fi source, it's best to consider a full-fledged 4G router or MiFi device designed for this type of use.
Alternative ways to distribute Internet
If classic WiFi doesn't suit you, Redmi 7A offers other options. A USB modem allows you to share internet with your computer via a cable. This ensures a more stable connection and simultaneously charges your phone, solving the battery issue.
To activate the USB modem, connect your smartphone to the PC with a cable, then go to Settings → Connection and Sharing → USB TetheringThe computer automatically recognizes the new network connection. This is a great option for desktop work on a laptop.
There's also a Bluetooth modem. It's significantly slower than WiFi and USB, but consumes less power. It's suitable for transferring small amounts of data or if the receiving device doesn't have a working WiFi adapter. It's enabled in the same "Connection and Sharing" menu.
What is the difference between a USB modem and a WiFi hotspot?
A USB modem provides a wired connection, eliminating signal loss over the air and charging your phone. A WiFi hotspot is convenient for connecting multiple devices wirelessly, but it drains the battery faster and depends on the distance.
Is it possible to share WiFi if there is no SIM card on the phone?
Yes, you can. Redmi 7A It can act as a repeater, broadcasting the WiFi signal it receives. However, this feature is not available in all MIUI versions and requires special configuration or third-party apps.
Why does the access point turn off by itself after a while?
This is the "Turn off hotspot" feature, which saves battery power if no one is connected to the network for 10 minutes. You can disable this option in the hotspot's advanced settings by unchecking the corresponding box.