Connecting Redmi 9 to a TV via wire: watching movies from the Internet without delays

1. What connectors are there on the Xiaomi Redmi 9 and what do they mean for connecting to TV

Before you run to the store for a cable, you need to figure out what physical interfaces yours has. Redmi 9. This smartphone is equipped one universal port USB Type-Cwhich is used for charging, data transfer and - with the right approach - for video output. However, not everything is so simple: not everyone USB-C supports the output video signal.

Xiaomi Redmi 9 (model M2004J19C) is built on a processor MediaTek Helio G80, which technically capable of transmitting video via USB-C, but the manufacturer often blocks this function on budget models. This means that to connect to the TV you may need not only a cable, but also a special adapter or even firmware with unlocked functions.

Here's what you need to know about the connectors:

• 🔌 USB Type-C - the main port of the smartphone. It supports USB 2.0 (speed up to 480 Mbit/s), but video output is only possible if there is support for the DisplayPort Alt Modemode, which is Redmi 9 disabled by default.
• 📺 HDMI - a standard connector on most modern TVs. To connect, you will need an adapter USB-C → HDMI.
• 🖥️ Micro-USB —on Redmi 9 it is not, but if you have an older model (for example, Redmi 8), you may need an adapter Micro-USB → HDMI (mode MHL).
• 🔄 3.5 mm AUX —an audio output that can be used to transmit sound to older TVs (but not video!).

If your TV was released before 2015, it may not have HDMI, but it will have VGA, Composite (RCA) or SCART. In this case, you will need additional adapters, which we will talk about in the article. one of the following sections.

2. What cable or adapter is needed to connect Redmi 9 to a TV

The choice of cable depends on two factors: what ports are on the TV and whether you want to transmit only video or also sound. Let's consider the main options:

🔹 Option 1: USB-C → HDMI (recommended method)

This is the most reliable and high-quality method, but it requires active adapter (passive cables do not work!). Suitable models:

• 🛒 Baseus USB-C to HDMI - supports 4K@30Hz, has audio output.
• 🛒 UGREEN USB-C to HDMI - compatible with MediaTek Helio, works without additional power.
• 🛒 Anker 310 —premium option with support 4K@60Hz (but for Redmi 9 the maximum will be 1080p).

Important: Cheap adapters without a chip DisplayLink or MHL will not work! Focus on the price from 1500 ₽ and the presence of a mention of support MediaTek.

🔹 Option 2: USB-C → VGA (for old TVs)

If your TV has only VGA (blue connector), you will need an adapter with signal conversion, for example:

• 🔧 CableMatters USB-C to VGA - requires additional power via USB-A.
• 🔧 Plugable USB-C to VGA - works with Redmi 9, but the maximum resolution is 1080p.

Please note: via VGA sound is not transmitted - you will need a separate cable 3.5 mm → RCA for audio.

🔹 Option 3: USB-C → Micro-USB + MHL (alternative)

If you have an adapter USB-C → Micro-USB, you can try to connect via MHL (Mobile High-Definition Link). data-i="123">(for example,

• ⚡ Adapter Micro-USB → HDMI with support MHL (For example, Samsung EH-MG950).
• ⚡ Power supply (charging 5V/2A), since MHL consumes a lot of energy.

Disadvantage of this method: Redmi 9 does not officially support MHL, so it will only work with some adapters (you need to check the reviews).

Check the processor model of your Redmi 9 (Helio G80)

Look at the reviews of the adapter - are there any mentions of working with Xiaomi

Make sure that the adapter is active (there is a chip inside)

Check sound support (if needed)

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3. Step-by-step guide: connect Redmi 9 to the TV via HDMI

Suppose you have chosen an adapter USB-C → HDMINow we will walk you through the connection process step by step. you will need:

• ✅ Smartphone Xiaomi Redmi 9 with a charge of at least 50%.
• ✅ Active adapter USB-C → HDMI (see list above).
• ✅ Cable HDMI (usually included with an adapter).
• ✅ TV with a free port HDMI.

📌 Step 1. Connect the adapter to your smartphone

Insert the adapter into the port USB-C on Redmi 9. Make sure that the connection is tight - sometimes adapters fall out due to the weight of the cable. If the adapter requires additional power (there is a connector USB-A), connect it to a charger or power bank.

📌 Step 2. Connect the adapter to the TV

Connect HDMI-cable to the adapter and TV. Remember the port number HDMI on the TV (for example, HDMI 1 or HDMI 2).

📌 Step 3. Select the signal source on the TV

Take the TV remote control and press button Source (or Input). In the menu that appears, select the HDMIport to which the adapter is connected. If the image does not appear, try another port.

📌 Step 4. Set up image output on your smartphone

On Redmi 9 there may not be a screen mirroring option by default. To activate it:

1. Open Settings → Connected devices → Connect to TV.
2. Enable option Wireless screen transfer (yes, even for a wired connection!).
3. If the option is missing, install the application Second Screen from Google Play.

📌 Step 5. Start the video

Open any video in YouTube, KinoPoisk HD or another application. The picture should be automatically duplicated on the TV. If the sound comes only through the smartphone, check the audio output settings in the adapter (sometimes you need to manually select HDMI as the sound source).

4. We solve problems: no image, sound or low quality

Even with a correct connection, difficulties may arise. Here are the most common problems and their solutions:

🚨 Problem 1: The TV does not see the smartphone

Possible causes and solutions:

• 🔋 Insufficient power — connect the adapter to the charger (if there is a connector USB-A).
• 🔄 Wrong HDMI port - try a different input on the TV.
• 📱 Blocking video output - on some firmware MIUI you need to turn it on USB debugging (Settings → About phone → MIUI version - press 7 times, then return to Advanced → For developers).
• 🔌 Faulty cable/adapter —check on another device.

🚨 Problem 2: There is no sound on the TV

Most often this happens due to incorrect audio output settings. What to do:

1. While playing a video, expand the notification panel to. smartphone.
2. Click on the play icon and select HDMI as the audio output device.
3. If there is no option, install the application SoundAbout from Google Play and manually redirect the audio on HDMI.

🚨 Problem 3: Low resolution or artifacts

This is typical for cheap adapters or incompatible firmware Solutions:

• 🎮 Set a fixed resolution in the smartphone settings 1920×1080.
• 🔄 Restart your smartphone. and TV.
• 🛠️ Update the firmware MIUI to the latest version (sometimes Xiaomi adds support for new adapters).

5. Alternative connection methods: if HDMI does not work

What to do if you do not have an adapter USB-C → HDMI or the TV is too old? Let's consider less obvious, but working methods.

🔹 Method 1: Connecting via USB (MTP + DLNA mode)

If your TV supports DLNA or has a port USB with media playback function, you can copy movies to a flash drive and connect it to the TV. But this is inconvenient for streaming. data-i="214">Connect

1. Connect Redmi 9 to the TV via USB-C → USB-A (mode MTP).
2. On the TV, open the application Media player (or Smart Share on LG).
3. Select your smartphone as a source and play the file.

Minus: only works with pre-downloaded files, not streaming.

🔹 Method 2: Analog connection (3.5 mm → RCA)

For TVs with connectors RCA ("tulips") or SCART can be transmitted sound only via 3.5 mm audio output, and video - via a separate channel (for example, via Chromecast). Diagram:

• 🎵 Connect the cable 3.5 mm → RCA to the smartphone and TV (input AUDIO IN).
• 📺 For video, use Google Chromecast or Mi TV Stickconnected to HDMI.
• 🔊 On your smartphone in the sound settings, select External speaker.

🔹 Method 3: Using a set-top box (Android TV Box)

If all methods did not work, the most reliable option is to buy an inexpensive set-top box for Android TV (for example, Xiaomi Mi Box S) and stream content from your phone to it via Google Cast or LocalCast. This will solve problems with compatibility and quality.

6. Optimizing viewing: Android settings for streaming

For movies to stream smoothly and the picture to be clear, you need to configure it correctly smartphone. Here's what we recommend doing:

📱 Screen settings

• 🔍 Set Screen resolution: Full HD (1920×1080) to Settings → Display.
• 🎯 Enable Auto-rotateso that the video automatically rotates on the TV.
• 🌓 Disable Adaptive brightness —it may cause flickering when outputting to TV.

📶 Network settings

If you watch movies online (for example, via KinoPoisk HD or IVI), it is important that the Internet is stable:

• 📡 Connect to the network 5 GHz Wi-Fi (if the router supports it).
• 🔌 If the signal is weak, use USB-ETH adapter for wired Internet.
• 🚫 Close background applications that consume traffic (for example, TikTok or Telegram).

🔊 Sound settings

So that the sound goes synchronously with video:

• 🎧 In the player application (for example, VLC) select Audio output: HDMI.
• 🔇 Disable all sound effects in Settings → Sound → Sound effects.
• 📏 Set the audio delay manually if there is desynchronization (in MX Player there is such an option).

7. Comparison of connection methods: which is better for films

To make it easier for you to choose the optimal method, we have compiled a table with the pros and cons of each option:

As can be seen from the table, wired connection via HDMI is the best option in terms of price/quality ratio, however, if you have an old TV, you will have to combine methods or use. set-top box.

FAQ: Frequently asked questions about connecting Redmi 9 to a TV

⚠️ Attention: Some adapters USB-C → HDMI require unlocking OEM Unlock in the developer settings. This can reset your smartphone data! Before activation, make a backup copy.

⚠️ Attention: On TVs Sony Bravia 2019–2020, sound may not work through HDMI due to firmware features. Update the TV software to the latest version.