How to turn on Wi-Fi Direct on Xiaomi Redmi 9

Xiaomi smartphones offer a variety of ways to transfer data, and direct communication technology between devices occupies a special place among them. Owners of the popular Redmi 9 model often wonder how to activate this mode to quickly send heavy files without using the Internet. Understanding the principles of wireless interfaces allows you to significantly simplify interaction with other equipment in your environment.

Wi-Fi Direct creates a secure (P2P) connection without needing a router or access point, which means your Redmi 9 can act as a standalone server to transmit media to a TV, printer or other smartphone. It is important to note at once that there is no single “Enable Wi-Fi Direct” button in the MIUI shell, since activation occurs automatically when compatible applications or services are launched.

In this guide, we will discuss all the nuances of settings, hidden menus and alternative methods that will ensure the stable operation of the communication module. You will learn how to properly prepare the device, what permissions are required by the system and why other devices sometimes do not see the gadget.

Principles of operation and features of technology at MIUI

The fundamental difference between Wi-Fi Direct and classic connectivity is the network architecture. If you need a router to distribute traffic for normal Internet access, then devices find each other directly. On Xiaomi Redmi 9 smartphones, this process is responsible for the system framework, which activates the corresponding mode of operation of the radio module on application demand.

⚠️ Warning: Unlike Bluetooth, Wi-Fi Direct technology delivers a significantly higher data rate comparable to a wired connection, but consumes more battery power.

Users often confuse this feature with modem mode or hotspot. However, Hotspot creates a local network with Internet access (if there is one on the phone), whereas a direct connection is designed solely for sharing files between two specific devices. MIUI system is optimized so that the user does not interfere with technical details, but to solve visibility problems sometimes requires manual configuration.

The key advantage is that WPA2 encryption standards are supported, which makes sensitive documents secure, and when connected, encryption keys are exchanged, and without user confirmation on the screen of the receiving gadget, transmission is impossible, which protects against unauthorized access to your photos and videos in public places.

Redmi 9 Preparation for Wireless Connections

Before you start trying to communicate between devices, you need to make sure that the basic services of the Android operating system work correctly. On Redmi 9, this includes checking for firmware updates and resetting network settings if you have previously experienced failures. Often the problem lies not in the lack of a function, but in the software conflict of drivers.

Make sure that both devices have a wireless module on, lower the notification curtain and activate the Wi-Fi icon. Even if you are not connected to a particular network, the module itself must be launched, since Wi-Fi Direct uses the same physical chip. Without active Wi-Fi, device search is impossible.

Also worth paying attention to the power saving settings, which are quite aggressive in MIUI, the system can limit the background activity of services responsible for finding devices to extend battery life, it is recommended to temporarily turn off the Ultra Battery Saver mode or add the necessary applications to the exception list.

Activation through embedded tools and applications

Since there is no separate switch in the settings menu, Wi-Fi Direct activation on Xiaomi Redmi 9 occurs (implicitly).You need to run an application that uses this protocol. The standard tool in the Xiaomi ecosystem is the Mi Drop app (known as Xiaomi Share), which is based on this technology combined with Bluetooth for the initial handshake.

To get started, open a standard file manager or gallery, select the file you want, and click the "Send" button. From the list of available methods, select Xiaomi Share or Wi-Fi Direct if it is displayed separately, at which point the system will automatically start searching for available devices within range.

Activation path: Settings → Connections and Sharing → Xiaomi Share → Enable

If you use third-party file managers like File Commander or ES Explorer, they also have a "Network" or "Friends" section in their interface where a search is initiated. Once the scan is started, your Redmi 9 will be visible to other devices. It is important that the receiving device also has a similar service running or permission to receive files.

Using third-party software for direct connection

In some cases, standard tools may not work well or support certain file formats, and Google Play utilities offer more flexible control over Wi-Fi Direct, and applications like WiFi File Transfer or SweetFiles allow you to manually start the server and see the list of available peers.

When installing such software on Redmi 9, you need to carefully monitor permission requests. To work properly, the program will need access to location (since scanning of Wi-Fi networks in Android is tied to geolocation), access to files and permission to work in the background. Without these permissions, the P2P protocol will not start.

A popular solution is also to use applications to transfer data between different platforms, such as Send Anywhere or Feem. They create a temporary network using the principles of Wi-Fi Direct, which allows you to transfer files between Xiaomi and iOS or Windows devices at high speed. The interface of such programs is usually intuitive: you just need to click the “Send” button and scan. QR-code or enter a digital code.

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For maximum speeds for large video files (4K), use applications that force a 5GHz network if your router and receiving device support this standard.

Setting up visibility and fixing connection problems

One of the most common problems is when Redmi 9 can’t see other devices or is hidden from them. This is often due to privacy settings or outdated security certificates. First of all, check whether the router is not on Client Isolation mode (Client Isolation), although Wi-Fi Direct router is usually not involved, some system services may conflict with network settings.

It is also worth checking the date and time on the device. System time mismatch can cause security certificate verification errors when trying to shake hands between devices. Set up automatic network time synchronization in the Settings menu → Additional settings → Date and time.

If the problem persists, try resetting your network settings.This action will delete saved Wi-Fi passwords and Bluetooth pairs, but often resolves protocol stack software errors. After rebooting Redmi 9, try to create a connection again, making sure the screens of both devices are on and active.

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In 90% of cases, the problem with visibility is solved by simply restarting the Wi-Fi module (turn off and on) or restarting the Redmi 9 smartphone itself.

Data security in P2P networks

Using direct connections requires understanding the risks. When you turn on visibility for everyone, your Xiaomi Redmi 9 could theoretically be detected by attackers within range. While file transfers always require user confirmation, the mere fact of detecting a device can reveal information about your gadget’s model.

It is recommended that you do not keep file transfer services active constantly in public places with large crowds, such as subways or shopping centers. Turn on Wi-Fi Direct or Xiaomi Share only at the time of transfer and immediately disable the function after the operation is completed.

⚠️ Warning: Never accept files from unknown devices, even if you see a request on the screen.This can lead to malware infection of the phone or memory overflow with junk data.

Also, keep an eye on the device name. By default, Redmi 9 can be called "Redmi 9" or have a standard identifier. Change the name in the Settings menu → About Phone → Device name to something unique but not containing your personal information (such as name or phone number), which will help you identify your phone in the list of available networks and hide unnecessary details from outsiders.

Optimization of transmission speed and stability

To achieve maximum performance when transferring large files, it is important to consider the frequency range. Redmi 9 supports 802.11 n/ac standards. If both devices support the 5 GHz band, the connection will be significantly faster and more stable than at 2.4 GHz, which is often overloaded with signals from microwave ovens and neighboring routers.

Make sure that your phone doesn’t run heavy background traffic-consuming processes, such as downloading game updates or syncing photos to the cloud. Although Wi-Fi Direct creates a separate channel, the CPU and radio resources are limited, and competition for them can lead to a drop in speed or a connection break.

Distance also matters. To ensure that technology works, devices must be in line of sight or no more than 5-10 meters away. Walls, especially concrete with reinforcement, can significantly weaken the signal, since transmitter power in Direct mode is often lower than when operating through a router.