Connecting Xiaomi Redmi Note 8 Pro to TV via USB: all ways and solutions to problems

Connecting Xiaomi Redmi Note 8 Pro to the TV via USB-cable seems like a simple task, but in practice users face a lot of nuances. Unlike wireless technologies like Miracast or Google Cast, wired connectivity promises stable image transfer without delay — ideal for watching high-resolution movies or games with minimal lag. USB-OTG in video output mode, and the Redmi Note 8 Pro itself requires special settings for correct operation.

In this article, we will discuss not only the standard method of connecting through the USB Type-C → HDMI Adapter, but also alternatives with the use of MHL-We'll focus on common mistakes, like why the phone screen isn't duplicated on TV, or why the sound is transmitted and the image isn't. MIUI 12–14 and port TVs HDMI 1.4/2.0 or USB 2.0/3.0.

1. What cables and adapters are needed to connect

The main problem when connecting the Redmi Note 8 Pro to the TV through USB — lack of standard connector HDMI You'll need additional adapters, depending on the TV model and the desired result (screen duplication or file transfer).

Here is the minimum set of accessories:

• 🔌 USB Type-C → HDMI Adapter (with DisplayPort Alt Mode support) – for displaying images on TV HDMI-Suitable for modern Samsung TVs QLED, LG OLED, Sony Bravia (2018 and Newer).
• 📱 USB-OTG cable (Type-C) → USB-A) — If the TV supports USB-host and can read files directly (e.g. Xiaomi Mi) TV 4S or TCL).
• 🔄 MHL-adapter (Micro-USB/Type-C → HDMI) — For older TVs without DisplayPort support. 8 The Pro does not have a built-in chip MHL, You will need an active adapter with external power.
• ⚡ USB-hub HDMI — if you need to connect the mouse/keyboard and display the image at the same time (relevant for gamers using the phone as a console).

⚠️ Note: Cheap adapters without a DisplayLink chip or MHL You may not be able to use the Redmi Note 8 Pro. Check compatibility on the manufacturer's website before buying. For example, Anker or Baseus adapters usually support Alt Mode, but no-name versions with AliExpress do not.

2. Step-by-step instruction: connection through USB → HDMI

This method is suitable for TVs with port HDMI and allows you to duplicate the screen of the smartphone in resolution to 1080p (The maximum for the Redmi Note 8 Pro is an adapter. USB Type-C → HDMI Supported by DisplayPort Alt Mode.

Follow the algorithm:

1. Connect the adapter to the Type-C port on your smartphone and the other end to the port. HDMI-television-port.
2. Turn on the TV and select the source of the signal. HDMI (Usually a source or input button on the remote).
3. The smartphone will show a notification about the connection to the external display: 🔄 Duplicate the screen – the picture on TV repeats the screen of the phone. 📺 Expand the screen – TV becomes a second monitor (useful for multitasking). 🎮 Second screen only – TV only (for games or presentations).

Set up the permission.

Settings → Display. → Permission HDMI

1920×1080

60 Hz

Check for DisplayPort Alt Mode support on the adapter

Enable Developer Mode on Redmi Note 8 Pro (if required)

Update the TV to the latest version

Use the original HDMI-cable (not longer than 2 meters)

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⚠️ Note: If the image on the TV is blurry or with artifacts, try it:

• 🔌 Reconnect and reconnect the adapter.
• 🔄 Reboot your smartphone and TV.
• ⚙️ Manually authorize 1280×720 customized HDMI.

Redmi Note 8 Pro does not support image output via USB-OTG TV-free HDMI-If your TV has only one port. USB, You will need an alternative method (see section 4).

3. Set up the smartphone before connecting

To avoid connection problems, you need to configure the Redmi Note 8 Pro correctly. The main parameters are hidden in the developer menu and standard settings.

Follow the following steps:

1. Activate Developer Mode: Go to Settings → About the phone, tap 7 times on the version MIUI. Enter your Xiaomi account password if required.
2. Put the debugging on. USB: Back to Settings → Additionally. → For developers, activate the debugging switch. USB. Confirm the action in the dialog window.
3. Set up. USB-Connection: Connect your smartphone to your TV (or computer for the test). USB To transfer files, select Image Transfer (PTP) or MIDI (if the adapter supports sound).

⚠️ Note: If the developer menu does not have the option Debugging by USB, Update the firmware to the latest version MIUI. Older versions (below 12.0.3) may not have key features for external displays.

💡

If the TV does not recognize the smartphone through USB-OTG, Try to connect it to the charger on 5V/2A. Some adapters require additional power to maintain stable operation.

4. Alternative ways of connecting (if) USB doesn't work)

If your TV doesn’t support DisplayPort Alt Mode or you don’t have a suitable adapter, you can use other methods:

Connection through MHL (old-screen)

Redmi Note 8 Pro does not have built-in support MHL, but an externally powered active adapter can be used (e.g, MHL 3.0. It will be required:

• 🔌 adapter USB Type-C → HDMI (MHL) with a Micro-USB port for power.
• ⚡ Charger on the 5V/2And for powering the adapter.
• 📺 Supported TV MHL (usually models before 2017).

⚠️ Attention: When in use MHL Image delays of up to 100 ms are possible, making the method unsuitable for gaming but suitable for video viewing.

4.2. Wireless connection (Miracast/Google Cast)

If wired methods do not work, use wireless technologies:

• 📲 Miracast: built into MIUI. Activated through Settings → Connection and sharing → Wireless display.
• 🔍 Google Cast: Requires Chromecast or TV with Google support TV (Sony Bravia 2020, for example+).
• 🎮 Steam Link: for streaming games from phone to TV (needs a router with 5 GHz Wi-Fi).

🔹 Comparison of connection methods:

5. Solving common problems

Even with the right connection, there can be errors, and let's look at typical scenarios and how to fix them.

5.1. The TV can’t see the smartphone through the phone. USB/HDMI

Possible causes and solutions:

• 🔌 Faulty cable/adapter: Try another adapter or check the integrity of the wires.
• ⚙️ Incorrect signal source: on the TV remote, click Source and select the desired HDMI-port.
• 📱 Lockdown MIUI: In the developer settings, disable the Check USB (USB debugging security settings).
• 🔄 Firmware conflict: Update MIUI Up to the latest version (especially relevant for firmware below 12.5).

5.2 Image is available, but no sound

If the image is transmitted and the sound is transmitted through the speakers of the smartphone:

• 🔊 In the notification curtain, click on the Sound icon and select HDMI output-device.
• ⚙️ In sound settings (Settings) → Sound) turn off the Separate Sound for Calls.
• 🔌 Reconnect the adapter – sometimes the sound appears after reconnecting.

Screen resolution is incorrect

If the image is stretched or cropped:

• 📏 In the settings HDMI (Settings → Display. → Permission HDMI) Choose 16:9 or 4:3 manually.
• 🔄 On your TV, activate Just Scan or 1:1 Pixel Mapping (in image settings).
• 📱 Reboot your smartphone with the cable connected – sometimes it resets the wrong display settings.

6.Performance optimization for games and video

Connecting the Redmi Note 8 Pro to a TV is often used for gaming (like Call of Duty Mobile or Genshin Impact) or watching movies in a video game. 4K. To minimize lags and improve picture quality, perform the following settings:

For games

• 🎮 Enable the game mode (Settings) → Special facilities → Game mode) and activate the Improved touch response.
• 🔋 Connect your smartphone to charging while playing – this will prevent the processor from trottling.
• 📊 In the game graphics settings, select 60 FPS High quality (if maintained).
• 🔌 Use an adapter with DisplayPort 1.4 – it provides minimal latency (up to 10 ms).

6.2 For video

• 🎬 In the player (e.g, MX Player or VLC) Enable hardware decoding (Settings) → decoder → Hardware.+).
• 🔊 For surround sound, activate Dolby Atmos in the smartphone sound settings.
• 📺 On the TV, select the Movie Mode or HDR (if maintained).
• 🔄 If the video slows down, reduce the resolution to 720p customized HDMI.

💡

For maximum performance when connecting to the TV, turn off background apps and activate Do Not Disturb mode, which will reduce the load on the processor and prevent connection breaks.

7. Compatibility with different TV models

Not all TVs work the same with the Redmi Note 8 Pro. Here are the features of connecting to popular brands:

7.1. Samsung (QLED, Crystal UHD, The Frame)

• ✅ Supports DisplayPort Alt Mode via HDMI-ARC (port).
• ⚠️ On models of 2018 and older, you may need to manually enable Anynet+ (HDMI-CEC).
• 🔊 The sound is automatically transmitted, but sometimes you have to manually select the sound. HDMI source of audio.

7.2. LG (OLED, NanoCell, QNED)

• ✅ Better compatibility with USB-C → HDMI (supportive 4K@30Hz even on budget models).
• ⚠️ On TVs with webOS before version 4.0, Miracast may not work.
• 🎮 For games, turn on Game Optimizer mode in the settings HDMI.

7.3. Xiaomi Mi TV / Redmi TV

• ✅ Full support USB-OTG Miracast (can be connected directly through the USB).
• ⚠️ On the Mi models TV 4A (2018 may not be sounding through HDMI — Use Bluetooth headphones.
• 📂 To view the files, connect the phone as USB-drive (select File Transfer in the curtain).

7.4. Sony Bravia (Android TV)

• ✅ It supports Google Cast and USB-C → HDMI free-of-setting.
• ⚠️ On models of 2019 and older, you can block uncertified adapters – use original Sony accessories.
• 🎬 For optimal quality, enable Motionflow in your image settings.

8. Frequently Asked Questions (FAQ)