How to Enable Wi-Fi Direct on the Xiaomi Redmi Note 9: A Step-by-Step Guide

Modern smartphones such as Xiaomi Redmi Note 9, are equipped with powerful wireless communication modules that allow data transfer without using the Internet. Technology Wi-Fi Direct is one of the key features for quickly synchronizing devices, but in the MIUI interface, it's often hidden from the average user. Unlike standard Wi-Fi, which requires a router, this protocol creates a direct connection between devices, ensuring high transfer speeds.

Users often have difficulty finding this option in the menu, as smartphone manufacturers prefer to promote their own alternatives, such as Mi Drop or ShareMe. However, the system protocol is still there and can be activated through hidden menus or dedicated apps. Understanding how this mechanism works at the Android system level will help you establish a stable connection with printers, TVs, or other smartphones.

In this article, we will examine in detail all the available methods for activating the function on the model. Redmi Note 9, including the use of engineering menus and third-party software. You'll learn why the standard path may be hidden and what alternatives the ecosystem offers. XiaomiWe'll also cover common connection errors and troubleshooting methods to help you get the most out of your device.

What is Wi-Fi Direct and why is it needed on the Redmi Note 9?

Wi-Fi Direct — is a wireless communication standard that allows two devices to connect directly without the need for a wireless network or access point. In the context of a smartphone, Xiaomi Redmi Note 9 This means the ability to transfer large files, display images on a TV screen, or print documents at the maximum speed available from a Wi-Fi module. The channel's throughput is significantly higher than that of Bluetooth, making the technology ideal for transmitting 4K video or large archives.

The main advantage of this technology is its autonomous connection. You don't need a router, mobile internet, or a data plan with a large data allowance. The device itself becomes an access point or client, establishing a secure connection. However, unlike traditional Wi-Fi, there's no traditional network list to choose from; device searches occur automatically in the background, which can sometimes raise concerns for users accustomed to manually managing connections.

It is worth noting that Redmi Note 9 Supports modern WPA2/WPA3 security standards when using this protocol. This ensures that transmitted data cannot be intercepted by third parties, even if the connection is established in a public place. The system automatically generates encryption keys for each session, ensuring the privacy of your personal information.

⚠️ Attention: Enabling discoverability for direct connections may make your phone visible to other devices within range. We recommend using this feature only in trusted environments or when pairing with a specific device.

Using a direct connection is especially important in situations where the infrastructure network is unavailable or overloaded. For example, at a conference or in an office with many connections, a direct connection between Redmi Note 9 and a projector will ensure a stable presentation without lag. Understanding how this technology works opens up new possibilities for using a smartphone in a professional environment.

Why isn't there a dedicated button in MIUI settings?

Many owners Xiaomi wonder why there's no explicit toggle for this feature in the settings menu. The answer lies in the shell's philosophy. MIUIThe company's engineers found manual control of direct connections too complex for the average user, so they integrated the functionality into system services and file-sharing apps. That's why you won't find the traditional "On/Off" switch in the notification shade or main Wi-Fi settings.

In fact, the protocol on Redmi Note 9 runs in the background constantly. When you initiate a file transfer via Mi Drop or try to mirror the screen to a TV, the system automatically activates the required module. This solution simplifies the interface but complicates life for those who want to use specific features that require explicitly specifying the Wi-Fi adapter's operating mode. This is typical for modern versions of Android, where hardware abstraction is becoming the norm.

Furthermore, the absence of a direct button reduces the risk of connection conflicts. If the user were to manually enable this mode, they could accidentally disconnect an active internet connection or create an IP address conflict. Automatic control allows the system to prioritize traffic and switch between antenna modes without human intervention.

Hidden features of the engineering menu

In the Xiaomi engineering menu (code ##6484##) you can check the status of the Wi-Fi module, but you can't force the Direct mode to turn on from there using standard tools - this is an Android security limitation, not a MIUI bug.

However, there are ways to bypass this limitation for advanced tasks. Using third-party utilities or ADB commands allows access to hidden adapter settings. This is especially useful for developers or enthusiasts testing hardware compatibility. However, for the average user, it's enough to know that this feature is enabled automatically when launching the appropriate applications.

Activation methods via system services and applications

Since there is no explicit button, activation occurs indirectly. The most common method is Redmi Note 9 — using built-in sharing services. Apps like ShareMe (formerly Mi Drop) use this protocol for data transfer. When you open such an app and start searching for devices, the phone automatically enters discovery mode and becomes visible to other devices.

Another activation method involves the screen casting feature. If you want to display the image on your TV, use the built-in "Cast" feature in the notification shade or connection settings. At this point Xiaomi Redmi Note 9 Initiates a search for compatible devices via the Miracast protocol, which is based on Wi-Fi Direct technology. Successful TV detection means the module is active and ready to use.

For more advanced settings, you can use third-party apps from Google Play that act as interfaces to the system API. Apps like "WiFi Direct Tester" or "SuperBeam" not only allow you to activate the mode but also manage connected devices, viewing technical connection details such as channel frequency and signal strength. This gives the user control that is hidden in the standard MIUI interface.

Android requires this because scanning for Wi-Fi networks can be used to determine location. Without GPS enabled, some apps may not be able to locate devices, which often confuses users.

Using third-party applications to manage the connection

If the standard methods seem insufficiently flexible to you, the store Google Play offers a variety of tools for managing direct connections. File-sharing applications such as Send Anywhere or Feem, often have their own protocol implementations that are more stable and faster than standard methods. They create a temporary network to which devices connect, ensuring cross-platform compatibility.

There are also specialized utilities for diagnosing and managing Wi-Fi Direct. They allow you to view a list of supported groups, device owner information (GO - Group Owner), and the current channel throughput. Redmi Note 9 Such programs are useful because they help determine whether the MIUI shell is blocking certain types of connections due to aggressive battery optimization.

When installing such apps, pay attention to the permissions they request. To function correctly, they will require access to the local network, storage, and location. Some antivirus programs may react to attempts to create local networks, so you may need to add the app to an exception list.

Using proven third-party solutions often solves compatibility issues with older printers or TVs that don't recognize a smartphone through standard means. Developers of such apps regularly update their lists of compatible devices and handshake algorithms, making them more versatile.

Setting up connections to printers and TVs via Wi-Fi Direct

Connecting peripherals such as printers and televisions is the most common use case for the technology. Xiaomi Redmi Note 9 The process usually goes like this: you enable Wi-Fi Direct on the printer itself (often through the device menu or a button), then find the device in the print settings on your phone or through the manufacturer's app. The system will automatically prompt you to establish a connection.

The situation is similar with TVs. If your TV supports Miracast or Wi-Fi Direct, it will appear in the list of available devices in the "Cast" menu on your smartphone. It's important that both devices are in the same frequency range, although modern routers and adapters can automatically switch between 2.4 GHz and 5 GHz. Redmi Note 9 The 5 GHz range is preferable for transmitting high-quality video without artifacts.

The table below lists the main parameters that may be required when manually configuring or diagnosing a connection:

If automatic connection fails, try resetting the network settings on your printer or TV. Sometimes static IP addresses or old connection profiles can interfere with establishing a new connection. On your smartphone, it's also helpful to forget the network if it was previously saved with incorrect settings.

Solution: The device is not visible or does not connect

One of the most common problems is the situation when Redmi Note 9 It doesn't detect another device, or vice versa. Often, the problem lies in MIUI's power-saving settings. The system may limit Wi-Fi activity in the background to conserve battery life. Go to battery settings, find the app you're using (for example, a file manager), and select "Unlimited" mode.

Another common cause is a protocol version conflict or channel congestion. If there are many Wi-Fi networks nearby, try switching the router or one of the devices to a different channel. Also, make sure geolocation is enabled on both devices, as it's a requirement for network scanning in Android.

⚠️ Attention: If you experience frequent connection failures, try resetting your smartphone's network settings. This will delete all saved Wi-Fi passwords and Bluetooth pairings, but it often resolves software conflicts with the communication module. Path: Settings -> Connection & Sharing -> Reset Wi-Fi, Mobile Network, and Bluetooth.

In some cases, rebooting the Wi-Fi module via Airplane Mode can help. Turn Airplane Mode on for 10 seconds, then turn it off. This will force a restart of the wireless module drivers. Xiaomi, which can resolve temporary failures in the TCP/IP stack.

Why is the transfer speed via Wi-Fi Direct lower than stated?

Speed ​​depends on many factors: the distance between devices, the presence of obstacles, air traffic congestion, and antenna power. Redmi Note 9 Actual speed can vary from 20 to 150 Mbps depending on conditions. The protocol version supported by the second device also plays a role.

Is it possible to use Wi-Fi Direct and regular Wi-Fi at the same time?

Yes, modern modules installed in Xiaomi Redmi Note 9, support simultaneous operation in different modes (Wi-Fi Direct and access point connection). However, this may result in a decrease in overall throughput and increased power consumption.

Is it safe to transfer banking information via a direct connection?

The connection is encrypted, but direct contact with unknown devices carries risks. It is recommended to use a direct connection only with trusted devices. For banking transactions, always use a secure internet connection (4G/5G or trusted Wi-Fi with a VPN).