How to Enable Wi-Fi Direct on the Samsung Galaxy A51: A Detailed Guide with the Nuances

Technology Wi-Fi Direct allows devices to exchange data directly - without a router, with high speed and minimal latency. Samsung Galaxy A51 This feature is hidden more deeply than on the brand's flagships, and its settings depend on the firmware version and regional interface features. In this article, we'll cover not only the standard method for enabling it, but also alternative methods for when the option "disappears" from the menu after an update. One UI.

You will learn how to distinguish Wi-Fi Direct from Miracast (they are often confused!), which devices are compatible with Galaxy A51 for a direct connection, and what to do if your phone can't see other devices on the network. We'll pay special attention to common errors—for example, when the feature is activated, but file transfer is blocked at the confirmation stage. All instructions have been tested on firmware versions with Android 10 to Android 12 (inclusive).

What is Wi-Fi Direct and why is it needed on the Samsung A51?

Wi-Fi Direct — is a wireless communication protocol that creates a direct connection between devices, bypassing a router. Unlike Bluetooth, it provides data transfer speeds of up to 250 Mbps (theoretically) and supports distances up to 200 meters in ideal conditions. On Samsung Galaxy A51 The technology is used for:

• 📱 Quickly transfer photos, videos, and documents between phones (including iOS phones using third-party apps).
• 🖨️ Printing on printers not connected to a shared network (for example, HP Envy or Canon PIXMA).
• 🎮 Connecting gamepads (for example, DualShock 4 or Xbox Controller) with minimal lag.
• 📺 Screen streaming to Smart TV (an alternative to Miracast, but with different limitations).

Important: Wi-Fi Direct ≠ MiracastThe first protocol is designed for data exchange and device control, while the second is exclusively for screen mirroring. Galaxy A51 Miracast is implemented through the function Smart View, while Wi-Fi Direct works through a separate menu in the settings.

On the Samsung Galaxy A51, Wi-Fi Direct supports simultaneous connections of up to 5 devices, but the transfer speed is divided equally between them. This means that when transferring a file to two phones simultaneously, the speed for each will decrease by approximately 2 times.

Preparing your phone before enabling Wi-Fi Direct

Before activating the feature, please check a few key settings to avoid common issues:

1. Update the firmwareGo to . Settings → Software Update and install the latest patches. On versions One UI below 2.5 (Android 10) Wi-Fi Direct menu may be missing or unstable.
2. Disable VPN and proxySome applications (eg. NordVPN or 1.1.1.1) block P2P connections.
3. Activate geolocationAlthough Wi-Fi Direct does not require GPS, on some firmware versions without geolocation enabled the function does not appear in the menu.
4. Check compatibility. Make sure the second device supports Wi-Fi Direct (e.g. printers Epson EcoTank or phones Xiaomi with MIUI 12+).

⚠️ Attention: If on yours Galaxy A51 custom firmware is installed (for example, LineageOS), the Wi-Fi Direct menu may be missing or malfunctioning. In this case, use alternative connection methods through apps like Send Anywhere or Feem.

Step-by-step instructions: how to enable Wi-Fi Direct on the Samsung A51

The standard method for activating the feature depends on the version One UIBelow is a universal algorithm that works on most firmware versions:

1. Open Settings (gear icon in the applications menu).
2. Go to the section Connections (or Network and Internet (on some versions).
3. Select Wi-Fi, then click on the three dots in the upper right corner (⋮) and select Wi-Fi Direct.
4. Activate the slider at the top of the screen. Your phone will begin scanning for available devices.
5. Select the target device from the list and confirm the connection on both devices (you may be required to enter a PIN code).

If the point Wi-Fi Direct not on the menu Wi-Fi, try an alternative route:

Settings → Connections → Advanced → Wi-Fi Direct

On firmware One UI 3.1 (Android 11) and newer the menu may be called Devices nearby or Fast transferIn this case:

Settings → Google → Devices & Sharing → Quick Transfer

What should I do if Wi-Fi Direct won't turn on?

If the slider is grayed out or the menu is missing, try resetting your network settings: Settings → General Management → Reset → Reset Network SettingsAfter restarting your phone, the function should appear.

Comparison of Wi-Fi Direct and other data transfer technologies

To choose the best way to share files, let's compare Wi-Fi Direct with alternative protocols:

To transfer files larger than 1 GB (for example, 4K video) Wi-Fi Direct — is the optimal choice. However, if you need to connect a gamepad or keyboard, it's better to use Bluetooth due to lower energy consumption.

Common mistakes and their solutions

Even after successfully enabling Wi-Fi Direct, users Samsung Galaxy A51 are faced with problems. Let's look at the most common ones:

• 🔍 Device not found: Make sure Wi-Fi Direct is also enabled on the second device. On some models Xiaomi or Huawei the function can be called WLAN Direct or Fast transfer.
• 🔒 Connection error: Restart both devices and try again. If you use a PIN, enter it on both devices (sometimes you'll need to confirm it within 30 seconds).
• 📶 Low transfer rate: Make sure there are no physical barriers (walls, metal surfaces) between the devices. The optimal distance is up to 5 meters.
• 🔋 Fast battery drain: Wi-Fi Direct consumes more power than Bluetooth. Close the connection after transferring files.

If Galaxy A51 If you can't see your printer via Wi-Fi Direct, check:

1. Does the printer support the protocol (a list of compatible models is available on the manufacturer's website).
2. Is the brand's app installed on the phone (eg. HP Smart or Canon PRINT).
3. Are there any restrictions in the router settings (some routers block P2P connections).

⚠️ Attention: On corporate or public Wi-Fi networks (such as in offices or airports), Wi-Fi Direct may be blocked by the network administrator. In this case, use a mobile hotspot or switch to Bluetooth.

Alternative ways to transfer files if Wi-Fi Direct isn't working

If the standard method doesn't work, try one of these solutions:

• 📲 File transfer apps:
  • Send Anywhere — generates a 6-digit code for data exchange without registration.
  • Feem — creates a local network for transferring files between devices.
  • Xender — supports cross-platform exchange (Android, iOS, Windows).
• 🌐 Cloud services: Upload the file to Google Drive, Dropbox or Yandex.Disk, then download it on the second device. Suitable for files up to 15 GB (Google Drive limitation).
• 🔌 Wired connection: Use OTG cable to transfer data directly via USB (for example, from a phone to a flash drive or another smartphone).

To stream your screen to your TV, you can use:

Smart View (Miracast) → Settings → Connections → Smart View

or third-party applications like ApowerMirror (requires connection to the same Wi-Fi network).

Security when using Wi-Fi Direct

Direct connections between devices pose potential privacy risks. Follow these guidelines:

• 🔐 Turn off Wi-Fi Direct after use. An active connection may be detectable by other devices within range.
• 🚫 Do not connect to unknown devices. Attackers can use Wi-Fi Direct to distribute malware.
• 📱 Check connection requests. On Galaxy A51 The device name is displayed before the connection - make sure it matches what you expect.
• 🔄 Update your firmware. In older versions One UI There were vulnerabilities that allowed Wi-Fi Direct traffic to be intercepted.

For additional protection:

1. Use a VPN (eg. ProtonVPN) when transmitting sensitive data.
2. Disable automatic connection to known devices in Wi-Fi Direct settings.
3. Clear the list of saved devices periodically: Settings → Connections → Wi-Fi → Wi-Fi Direct → Remove all.

⚠️ Attention: On some firmware versions Samsung Galaxy A51 function Wi-Fi Direct automatically turns on WPS Wi-Fi Protected Setup (WPS) is a vulnerable authentication protocol. Disable WPS in your router's settings if you're using it on the same network.

FAQ: Frequently asked questions about Wi-Fi Direct on the Samsung A51

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

No. When Wi-Fi Direct is activated, the phone disconnects from the mobile network (2G/3G/4G/5G). To maintain internet access, connect to the router via Wi-Fi, then activate Wi-Fi Direct. This will allow the phone to use the internet connection through the router, while Wi-Fi Direct will be used to exchange data with the other device.

Why is Wi-Fi Direct slower than Bluetooth on my A51?

This may be due to:

1. Power saving settings (turn on the mode) Maximum performance V Settings → Device Maintenance → Battery).
2. Physical obstacles (walls, furniture) or interference from other Wi-Fi networks.
3. Outdated firmware on the printer or second phone (update the software on both devices).

Use the app to test your speed. WiFi Analyzer - it will show the level of interference in your range.

How to transfer files from A51 to iPhone via Wi-Fi Direct?

iPhone doesn't have built-in Wi-Fi Direct support, but you can use:

• Send Anywhere — a cross-platform application with code generation for exchange.
• Feem — creates a local network accessible to iOS.
• AirDrop (macOS/iOS only), but you will need to be connected to the same Wi-Fi network.

For large files (>1 GB) it is better to use cloud services (Google Drive or iCloud).

Is it possible to connect the DualSense gamepad to the A51 via Wi-Fi Direct?

Yes, but with restrictions:

1. Gamepad DualSense (from PS5) officially supports Bluetooth connection, but some games (for example, Call of Duty Mobile) allow you to use it via Wi-Fi Direct to reduce lag.
2. This will require an app. Octopus or GameSir (available on Google Play).
3. The reaction speed will be higher than via Bluetooth, but the gamepad battery consumption will increase.

Why did Wi-Fi Direct disappear after updating to Android 12?

IN One UI 4.0 (Android 12) Samsung moved the feature to the menu Fast transfer (Google Nearby Share). To return to classic Wi-Fi Direct:

1. Go to Settings → Google → Devices & Sharing → Quick Transfer.
2. Disable the option Use mobile network data.
3. Return to Settings → Connections → Wi-Fi → Wi-Fi Direct — the menu should appear.

If the function still does not appear, perform a network reset (Settings → General Management → Reset → Reset Network Settings).