Modern Xiaomi smartphones, including a budget model Redmi 9A, are equipped with a powerful set of wireless interfaces for data exchange. One of the most useful, but often hidden, features is Wi-Fi DirectThis technology allows you to transfer files, photos, and videos between devices at high speeds without connecting to a router or using up mobile data. Unlike Bluetooth, which can be slow when transferring large amounts of data, Wi-Fi Direct delivers gigabit speeds comparable to standard home internet.
However, users often have difficulty finding this option in MIUI. Smartphone manufacturers sometimes hide the toggle deep within system settings or only activate the feature when launching certain apps. For owners Redmi 9A It's important to understand that there may not be a standard toggle in the notification shade for this mode. Activating it requires knowledge of specific menu paths or the use of third-party utilities that correctly interact with Android system protocols.
In this article, we'll take a detailed look at all the ways to enable direct wireless connection on your device. You'll learn how to make your smartphone visible to other devices, how to ensure stable data transfer, and the nuances of this technology within the Xiaomi ecosystem. We'll also discuss alternative file sharing methods built into the MIUI interface, which may prove more convenient for everyday use.
What is Wi-Fi Direct and why is it needed on the Redmi 9A?
Wi-Fi Direct — is a wireless communication standard that allows two devices to connect directly to each other, bypassing an access point or router. In the context of a smartphone Redmi 9A This means your phone can act as a mini-router or client, creating a communication channel with a TV, printer, camera, or another smartphone. The main advantage of this technology is its data transfer speed, which significantly exceeds Bluetooth capabilities, and the elimination of the need to set up a complex network.
This mode is especially useful in situations where there's no internet or local network access. For example, you can quickly transfer a large video to a friend's phone or display the image on a Smart TV without lag. It's important to note that with an active connection Wi-Fi Direct The device's regular Wi-Fi internet may become unstable or disconnect because the radio module switches to direct connection mode.
⚠️ Please note: Actively using direct data transfer mode may significantly increase battery life on your Redmi 9A. It is recommended to keep the device charged or connected to a power source when transferring large files.
The technology supports WPA2 encryption, which provides basic protection for transmitted information from being intercepted by nearby third parties. However, unlike a full-fledged Wi-Fi network, there is no centralized traffic management, so connection security depends entirely on the partner devices. Redmi 9A This means that you need to carefully monitor the connection requests that appear on your screen and only confirm those that you have initiated yourself.
Finding the function in the standard MIUI settings
The first place to look for the switch is the standard Android settings menu. Different versions of the MIUI firmware installed on Redmi 9AThe location of the elements may vary. Most often, the option is hidden in the section responsible for additional connections. The user should exercise caution, as the item may have an unintelligible name or be hidden in the "Advanced" submenu.
To access the settings, follow these steps: open the application Settings, then go to the section Wi-FiHere, pay attention to the upper right corner of the screen, where you'll find a menu with three dots or a gear icon. Clicking this element will take you to an expanded menu, which may contain the function you're looking for. If the switch isn't there, try searching for it in the section Connection and sharing or Additional settings.
It's worth keeping in mind that Xiaomi often modifies the interface for minimalism, removing rarely used switches. If you don't see a clear "Wi-Fi Direct" option, that doesn't mean the module is in use. Redmi 9A is faulty. Most likely, the system's logic is designed so that activation occurs at the request of the application. Check the presence of the item Wi-Fi Direct in the list of available networks after scanning, sometimes it is displayed there as a separate device.
Activation via the developer menu and hidden settings
If standard methods fail, you can resort to more advanced system management techniques. The Android developer menu provides access to hidden features for debugging and testing wireless modules. Redmi 9A You can get to this section by quickly clicking on the build number in the section several times About the phoneOnce you unlock the developer menu, a new option will appear in the main settings that you need to open.
Within the developer menu, look for sections related to network settings or Wi-Fi testing. These may contain switches that force certain radio modes. However, be careful: changing the settings in this section can affect the stability of the entire system. Before making any changes, we recommend saving the original values or resetting the network settings if problems arise.
Risks of using the developer menu
Incorrectly configuring Wi-Fi settings in the developer menu can result in constant connection drops, an inability to connect to your home network, or increased power consumption. If you're unsure of a specific option's purpose, it's best not to change it.
There's also an activation method via a hidden service menu, accessible with a special code. Enter the code in the Phone app. ##6484##, you'll be taken to the engineering testing menu (CIT). Here, you can select Wi-Fi module testing and check its functionality in various modes, including Direct. This is more of a diagnostic tool, but it confirms the physical integrity of the module and its ability to operate in direct mode.
Using file transfer apps
The most common and safest way to use the capabilities Wi-Fi Direct On the Redmi 9A, this involves using specialized apps. Apps like SHAREit, Xender, or Send Anywhere automatically manage the necessary protocols. When you initiate a file transfer in such an app, it automatically activates Wi-Fi in Direct mode, creates a network, and invites the other device to connect.
The user doesn't need to manually search for switches in the settings. Simply install the app on both devices, select a file, and press the "Send" button. The system will automatically prompt you to turn on Wi-Fi if it's off and begin searching for your contact. This is ideal for those who don't want to delve into the technical details of Android settings.
- 📲 SHAREit — one of the most popular applications that creates its own network for data transfer at speeds of up to 20 MB/s and higher.
- 🚀 Xender — a lightweight alternative that works even without the Internet and allows you to transfer files between Android and iOS.
- 📤 Files by Google — a built-in or downloadable application that uses direct communication protocols to quickly send files to nearby devices.
This is necessary for the device scanner to work, as Android's Wi-Fi network search is tied to geolocation. When installing, make sure you trust the software developer and check the permissions you grant to the app.
Setting up visibility and connection parameters
For a successful connection, it is important to correctly configure the visibility settings of your Redmi 9AThe device must be discoverable by other devices. In some cases, even if Wi-Fi Direct is enabled, the phone may not appear in the list of available networks on the receiving device. This is often due to power saving settings or hiding the device's name.
Check your smartphone name in the section Settings → About phoneMake sure it contains only Latin characters and does not contain any special symbols that may display incorrectly on other devices. Also, in your Wi-Fi settings, make sure "Randomize MAC Address" is disabled for the networks you're trying to connect to directly, as this can cause identification conflicts.
| Parameter | Recommended value | Impact on work |
|---|---|---|
| Device name | Latin, without special characters | Ensures correct display in the list of networks |
| Frequency range | 2.4 GHz (for compatibility) | Increases range and compatibility with older TVs |
| Energy saving | Disabled for Wi-Fi | Prevents connection loss during idle time |
| Visibility | Always available | Allows other devices to find your phone |
If you are using your smartphone to connect to a TV or projector, make sure both devices are in the same frequency zone. Although Wi-Fi Direct theoretically supports cross-frequency connection, in practice Redmi 9A The phone may have difficulty connecting to a device that operates strictly on 5 GHz if it currently prefers 2.4 GHz. Switching bands in the router settings (if using hybrid mode) or manually in the phone settings may resolve the issue.
Troubleshooting connection and transmission issues
Despite the convenience of the technology, users often encounter errors. The most common problem is "Unable to connect" or "Obtaining an IP address." Redmi 9A This is often resolved by resetting network settings. Go to Settings → Connection and sharing → Reset Wi-Fi, mobile networks, and BluetoothThis action will delete saved passwords and settings, but often resolves software driver conflicts.
Another issue is low transmission speed. This can be caused by interference from other wireless devices, microwave ovens, or neighboring routers. In dense urban areas, the airwaves can be congested. Try moving to a different room or changing the Wi-Fi channel in your router settings if you're using it as a bridge.
☑️ Diagnosing connection issues
⚠️ Note: If the issue persists after resetting your network settings, check for system updates. Xiaomi periodically releases security patches and fixes for communication modules that can critically impact Wi-Fi Direct.
It's also worth mentioning the file format issue. Some older TVs or media players may not be able to "see" files of certain formats transmitted over Wi-Fi Direct, even if the connection is established. In this case, the problem isn't with the connection, but with the codec or file container. Use universal formats, such as MP4 for video and JPG for images, to minimize the risk of incompatibility.
Alternative ways to share data on Xiaomi
To the owners Redmi 9A It's worth knowing about the native MIUI feature called "Mi Drop" (now often integrated into File Explorer or "Mi Share"). It's similar to Apple AirDrop, using Wi-Fi Direct and Bluetooth. It's built into the system and doesn't require any third-party software. To transfer a file, simply select it in the gallery, tap "Send," and choose "Mi Drop" or "Mi Share."
This method is often more stable and faster than manually setting up Wi-Fi Direct using third-party apps. The system automatically optimizes the data flow and manages power savings. If your goal is simply to transfer a photo or document to another Xiaomi or Android smartphone, use this built-in tool.
To connect to a PC, you can use the File Manager app with FTP functionality. Launching the server on your phone will provide you with an address that you can enter in Windows Explorer. This also uses Wi-Fi, but operates using a different protocol, making it convenient for managing files without cables. The speed will be limited only by your router's speed, as both devices must be on the same network.
How does the Android and MIUI version affect the function?
The functionality and availability of settings directly depend on the MIUI shell version and the underlying Android version. Redmi 9A Originally released on Android 10, it could be updated to newer versions. With each major update, Google changes its security policies, which can lead to some Wi-Fi settings being hidden from the average user. For example, in Android 11 and higher, access to Wi-Fi network scanning for apps is now strictly restricted.
If you recently updated your phone and no longer see certain options, this is normal system behavior designed to protect your privacy. New versions of MIUI have shifted the focus to "Mi Share" and "Google Nearby Share," which are modern, secure add-ons to Wi-Fi Direct technology. Good old "pure" Wi-Fi Direct is being phased out as a separate user interface, remaining merely a protocol.
You can check the software version in the section Settings → About phoneIf updates are available, the system will prompt you to install them. Changelogs often mention "Connection stability optimization" or "File transfer improvements," which directly affect the functionality of the modules we're discussing.
Why can't my Redmi 9A see the TV via Wi-Fi Direct?
The most common issue is that the TV doesn't support the Wi-Fi Direct protocol in the mode compatible with Android smartphones, or the feature isn't activated on the TV. Make sure Screen Mirroring or a similar mode is enabled on the TV. Also, check whether the router's firewall is blocking the direct connection if the devices are online.
Does Wi-Fi Direct reduce internet speed?
Yes, if you use a single radio module to connect to the internet through a router and simultaneously for direct data transfer, your internet speed may drop or the connection may be lost. A phone physically cannot simultaneously receive data from the router and transmit a large stream to another device at full speed without losing performance.
Is it safe to transfer banking information via Wi-Fi Direct?
Although the connection is encrypted, Wi-Fi Direct is designed for media and file transfers, not secure transactions. For banking transactions, always use mobile data (4G/5G) or a trusted, secure home Wi-Fi network, not a direct connection to an unknown device.
Can I play games online via Wi-Fi Direct on Redmi 9A?
Yes, many local multiplayer games use this protocol to create a local network between phones without internet access. It's a great way to play with friends when there's no access to an external network.