Connecting a Xiaomi Redmi 7 to a TV via Wi-Fi: All the Methods and Nuances

Wirelessly streaming your smartphone's screen to a big-screen TV has become an integral part of the modern multimedia experience. Xiaomi Redmi 7 We often face the question of how to maximize the device's capabilities for watching movies, games, or presentations on TV without unnecessary wires. This article will cover all the current Wi-Fi connection methods, taking into account the specific features of this particular model and its Snapdragon 632 processor and MIUI version.

It is important to understand that Redmi 7 supports several wireless transmission protocols, but their operation depends on the capabilities of your TV. We will cover not only standard solutions like Miracast And DLNA, but also alternative methods using third-party applications. We will pay special attention to typical problems - from audio delays when broadcasting via Miracast to the point of being unable to detect devices on the local network.

If you've previously tried connecting and encountered errors like "Unable to connect to display" or "Device not supported," this article will provide specific solutions. We'll also explore how to bypass limitations on older TV models (manufactured before 2018) and what settings to use. Redmi 7 It is critical to check before starting the broadcast.

1. Preparing Xiaomi Redmi 7 for wireless connection

Before you start streaming, you need to make sure your smartphone is ready to wirelessly connect to your TV. Let's start with the basic settings that are often overlooked:

• 📶 Update MIUI to the latest stable version. In older firmware versions MIUI 12.5 Critical fixes for Miracast may be missing. You can check the version in Settings → About phone → MIUI version.
• 🔄 Enable developer mode (If you plan to use debugging features). To do this, tap "MIUI version" seven times in your phone's settings.
• 🔌 Check energy savingDisable battery optimization for streaming apps in Settings → Battery → Battery optimization.
• 📡 Make sure your Wi-Fi is stableConnect your phone and TV to the same 5 GHz network (if supported) to reduce latency.

Pay special attention to the settings wireless projection. IN Redmi 7 the path to them is not obvious: Settings → Connection and Sharing → Wireless ProjectionHere you can enable the "Show device on network" feature, which will make it easier for the TV to detect.

⚠️ Attention: On some firmware versions Redmi 7 (especially custom ones) the Miracast function may be disabled at the kernel level. If the "Wireless Projection" option is missing in the settings, you'll need firmware that supports it. WFD (Wi-Fi Display).

To check if your TV is compatible with Redmi 7 Please use the table below. Please note that some brands (e.g. LG up to 2019) require additional settings in the TV service menu:

2. Method 1: Connecting via Miracast (native function)

Miracast — is a wireless image transmission standard supported by most modern TVs. Redmi 7 This feature is built into the system, but its functionality depends on the firmware version and TV model. Here are the step-by-step instructions:

1. Activate Miracast reception mode on your TV. This is usually done via:
   • 📺 Menu "Source" → "Screen Mirroring" (Samsung)
   • 📺 "Settings" → "Network" → "Miracast" (LG/Sony)
   • 📺 "Wireless Projection" in the quick settings panel (Xiaomi TV)

On Redmi 7 open Settings → Connection and Sharing → Wireless Projection.

Tap "Start Casting" and your phone will begin searching for available devices.

Select your TV from the list. Confirm the connection on both devices.

If your TV does not appear in the list, try the following:

• 🔄 Reboot the router and both devices.
• 📡 Make sure both devices are connected to the same Wi-Fi network (not a guest network!).
• 🔧 Disable energy saving mode on your TV—it may block Miracast background processes.

TV and phone on the same 5 GHz network|

VPN is disabled on the phone|

"Visible to all" mode is enabled in Miracast TV settings|

Firmware has been updated on both devices-->

⚠️ Attention: When broadcasting via Miracast on Redmi 7 A sound delay of up to 200 ms may be observed. This is due to processor hardware limitations. Snapdragon 632For games or music, it's better to use alternative methods.

To improve the quality of the broadcast, try:

• 🎮 Reduce phone screen resolution to 720p in the developer settings (min_width = 720).
• 📶 Use a router with support MU-MIMO (For example, Xiaomi AX3600).
• 🔌 Connect your phone to a charger - performance limitations when the battery is low can impact streaming.

3. Method 2: Using DLNA to transfer media files

If Miracast is not working or you only need to stream photos, videos and music (without screen mirroring), DLNA will be the optimal solution. This protocol is supported by all smart TVs and many media players. For Redmi 7 the algorithm is as follows:

On TV:

1. Launch a media player app (e.g. Photo/Video/Music on Samsung or Media Player on LG).
2. Select "DLNA" or "Network Device" source.

On the phone:

1. Install the application BubbleUPnP (for older TVs) or use the built-in "Explorer" Xiaomi.
2. Select file → "Open with" → "Play on DLNA device".
3. Select your TV from the list.

Advantages of DLNA:

• 🎬 No playback delay (unlike Miracast).
• 📁 Playlists and folders support.
• 🔄 Works even on TVs without Smart TV (via external players such as WD TV Live).

Restrictions:

• 🚫 Doesn't broadcast your phone's screen - only individual files.
• 📛 Not all video formats are supported (for example, MKV with AC3 may not be playable).
• 🔌 Requires a stable Wi-Fi connection - if the connection is lost, playback stops.

4. Method 3: Screen mirroring apps (Smart View, ApowerMirror)

When standard methods don't work, third-party applications come to the rescue. Redmi 7 most effective:

• 📱 Smart View (from Samsung) is a universal solution that works with most TVs.
• 🖥️ ApowerMirror - supports screen recording and control from TV.
• 🎮 TeamViewer QuickSupport — for remote control (not mirroring!).

Let's consider the connection via ApowerMirror:

1. Download the app from Google Play on Redmi 7 and install the server part on the TV (if it is Android TV).
2. Connect both devices to the same Wi-Fi network.
3. Launch ApowerMirror on your phone and select "Mirroring" → find your TV in the list.
4. Confirm the connection on your TV (you may be asked to enter a PIN code).

Features of working with Redmi 7:

• 🔋 Your phone may overheat during long broadcasts - use a cooling pad.
• 🎮 Latency in games via ApowerMirror is ~150 ms (better than Miracast, but still noticeable).
• 📶 For stable operation, a Wi-Fi speed of at least 50 Mbps.

⚠️ Note: Some apps (such as Netflix or Disney+) block mirroring due to DRM protection. In this case, the content will appear on a black screen.

To resolve the DRM issue:

• 🔑 Use official TV apps (for example, Netflix on Samsung TV).
• 📺 Connect your phone via HDMI via adapter USB-C to HDMI (bypasses DRM restrictions).

5. Solving common connection problems

Even with the correct settings, users Redmi 7 We often encounter errors. Let's look at typical scenarios and their solutions:

If none of the methods worked, check:

• 🔧 Router settings: turn off AP Isolation (client isolation), turn on Multicast.
• 📱 Developer mode: Enable "Wi-Fi debugging" and "Keep the screen on".
• 📺 TV firmware: on some models LG 2016-2017 A rollback to an older version of WebOS is required.

What should I do if Miracast connects, but the screen flickers?

This problem is typical for Redmi 7 with custom firmware. The cause is a graphics driver conflict. Adreno 506 and WFD protocol. Solution:

1. Install the official firmware via Mi Flash Tool.

2. In developer settings, disable "Hardware acceleration".

3. Use the app Miracast Check for compatibility diagnostics.

6. Alternative methods: Chromecast and adapters

If your TV doesn't support Miracast or DLNA, or you're experiencing issues that you can't resolve, consider the following options:

• 📡 Google Chromecast (or similar) Xiaomi Mi TV Stick): connects to the TV's HDMI port and works via Wi-Fi. For Redmi 7 just install the application Google Home and select the "Screencast" option.
• 🔌 USB-C to HDMI adapter: physical connection without delays. Suitable for TV models without Smart functions. Please note that Redmi 7 supports video output via USB-C only with chip adapters DisplayLink (For example, WAVLINK USB3.0 to HDMI).
• 🖥️ Steam Link: If you need to stream games, this app provides minimal latency (~50ms) when you have a PC on your local network.

Comparison of methods:

| Method | Delay | Quality | Compatibility | Cost |

|---------------------|----------|----------|---------------|-----------|

| Miracast | 150-200ms | 1080p | Medium | Free |

| DLNA | 50-100 ms | 4K | High | Free |

| Chromecast | 100-150 ms | 1080p | High | ~3000₽ |

| USB-C → HDMI | 0 ms | 1080p | Universal | ~1500₽ |

| ApowerMirror | 120-180 ms | 720p | Medium | Free |

For owners Redmi 7, which frequently broadcast content, the optimal solution would be a combination Chromecast for media And USB-C gaming adapterThis will allow you to bypass the limitations of wireless protocols.

7. Network optimization for stable broadcasting

The quality of wireless broadcasting directly depends on the settings of your Wi-Fi network. For Redmi 7 critical:

• 📶 5 GHz band: use channels 36-48 (less crowded).
• 🔄 Channel width: install 80 MHz for maximum throughput.
• 📡 Qos (Quality of Service): Prioritize traffic in your router settings Redmi 7 by MAC address.
• 🔌 Router operating mode: turn off 802.11r (fast roaming) - it can cause connection breaks.

Recommended router settings for broadcasting:

SSID: MyNetwork_5G
Security: WPA2-PSK (AES)
Channel: 40 (5 GHz)
Channel width: 80 MHz
MTU: 1472
DHCP: Enabled (range outside 192.168.1.100-192.168.1.200 for static IP)

To diagnose network problems, use the following applications:

• 📊 WiFi Analyzer — checking channel load.
• 📡 PingTools Network Utilities — speed test between phone and TV.
• 🔧 Fing — search for network conflicts.

⚠️ Note: If your router supports Wi-Fi 6 (802.11ax), But Redmi 7 connects only by Wi-Fi 5, turn off the mode 11ax in your router settings. This may resolve issues with Miracast dropping out.

8. Comparison with other Xiaomi models: which is better for streaming?

Redmi 7 is not the flagship in the line Xiaomi, and its wireless broadcasting capabilities are limited by hardware specifications. For comparison:

If you plan to use wireless streaming frequently, consider upgrading to a model with Wi-Fi 6 (For example, Poco X4 Pro) or processor Snapdragon 7xx series. These devices provide:

• 🎮 Less delay 60 ms (critical for games).
• 📺 Support 4K@60Hz via Miracast.
• 🔋 Less heating during long-term broadcasting.

For Redmi 7 the optimal solution remains the use Chromecast or HDMI adapter for critical tasks (games, high-definition video).

FAQ: Frequently asked questions about connecting the Redmi 7 to a TV

Is it possible to connect Redmi 7 to a TV without Wi-Fi?

Yes, there are three alternative ways:

1. USB-C to HDMI adapter (requires support) DisplayPort Alt Mode, which is in Redmi 7).
2. MHL adapter (for old TVs with MHL port).
3. Slimport (similar to MHL, but with 4K support).

For adapters, we recommend chip-based models. DisplayLink (For example, WAVLINK USB3.0 to HDMI).

Why is there no sound when connecting via Miracast?

This issue is related to an audio codec conflict. Solutions:

• Install the application SoundAbout and manually select the "Media" sound source.
• In Developer Options, disable "Absolute Volume Level".
• Restart your phone and TV at the same time.

If the sound still doesn't appear, try streaming only the video and outputting the audio through a separate Bluetooth speaker.

How to reduce latency when streaming games?

Minimal latency in wireless broadcasting Redmi 7 is ~120 ms. To reduce it:

• Use USB-C to HDMI adapter (delay ~20 ms).
• Switch to 5 GHz Wi-Fi and reduce the screen resolution to 720p.
• Close all background applications on your phone (especially instant messengers).
• Activate performance mode in Settings → Advanced → Performance Mode.

For online games (eg. PUBG Mobile) even with optimization, the delay will be noticeable - consider cloud services like GeForce NOW.

Can I stream Netflix from Redmi 7 to TV?

Yes, but with some reservations:

• Through Miracast/DLNA: there will be a black screen due to DRM protection.
• Through Chromecast: It works officially (you need to press the Cast button in the Netflix app).
• Through HDMI adapter: works without restrictions.

Netflix blocks screen mirroring on all Android devices. Use the official Netflix app on your TV or Chromecast.

Why does the TV see the phone but not connect?

Reasons and solutions:

• Protocol discrepancy: Update your TV or phone firmware.
• Blocked by firewall: Disable the antivirus on your phone (for example, Avast or 360 Security).
• Router limitations: Turn it off AP Isolation And Client Bandwidth Limit.
• IP conflict: Assign the phone a static IP in the DHCP range.

If the problem persists, try connecting via access point phone (turn it on in the settings and connect the TV to this network).