How to turn it on OTG Xiaomi: A Complete Guide to Error Solutions

Function OTG (On-The-Go on Xiaomi smartphones allows you to connect external USB-From flash drives and hard drives to keyboards and gamepads, they're directly to the phone via an adapter, even though most of the current Redmi models are now in the hands of the phone, POCO And Mi supports OTG "Out of the box, users often face problems: the function is not activated, devices are not recognized, or errors such as "USB-This is not supported. In this article, we will discuss how to turn on the device correctly. OTG on Xiaomi, check the compatibility of your model and fix typical problems.

It is important to understand that OTG It doesn't just work for file transfer, it can connect a mouse to navigate around. MIUI, use a physical keyboard to work with documents or even display an image on a monitor USB-C → HDMI Adapter (on supported models), however, before the first connection, you should consider a few nuances: from the version of Android to the type of file system on the flash drive (for example, NTFS It may not be read without additional settings).

If you have previously tried to connect the device through OTG And you get a mistake, don't be quick to blame your smartphone, because 60 percent of the time, the problem is the wrong adapter, the power shortage for your hard drive, or the outdated firmware. OTG fine-tuning MIUI steady-work.

What is it? OTG Why you need it on Xiaomi?

Technology USB OTG (USB On-The-Go allows the smartphone to act as a host – that is, manage the connected USB-It's like a computer, and in practice, it means that you can do it:

• 📁 Connect flash drives and external hard drives to transfer files without a computer.
• 🎮 Use gamepads (such as Xbox or DualShock) to play games through emulators or cloud services.
• ⌨️ Connect keyboards and mice for easy text entry or document handling.
• 📷 Import photos from cameras or card readers directly to your phone.
• 🔊 Connect USB-microphones or sound cards for recording podcasts.

On Xiaomi smartphones OTG It is implemented at the hardware level, but its operation depends on three key factors:

1. Hardware support: Not all models (especially budget or outdated) have the chip needed to make the most of the hardware. OTG. Like Redmi. 4A or Redmi 5A may not support hard drive connection due to power restrictions.
2. Firmware MIUI: in some versions of the function OTG It is disabled by default or is unstable. Updating to the latest version often solves the problem.
3. Adapter type: for USB-C Micro-USBs require different adapters, and cheap, uncertified adapters may not transmit data or power.

Critical nuance: Xiaomi smartphones based on MediaTek processors (for example, Redmi Note 8 or POCO M3) Sometimes you need additional drivers to work with OTG, while the models are on Snapdragon (Redmi Note 10 Pro, Xiaomi) 11T) They usually maintain a function without problems.

How to check if your Xiaomi supports you OTG

Before you buy an adapter or try to connect the device, make sure your smartphone is hardware-supported. OTG. This can be done in several ways:

Method 1: Check through the official Xiaomi website

Go to your Xiaomi model page and look for the "Specifications" section "OTG" or "USB For example, for Xiaomi 12 Pro support OTG It is clearly stated, and for Redmi. 9A It might not be.

Method 2: Using Diagnostic Applications

Install one of these apps from Google Play:

• 🔍 USB OTG Checker – shows if the device supports OTG, And it's testing connected devices.
• 📱 CPU-Z — In the System section, check the line USB Host (must be Yes).
• 🛠️ AIDA64 — menu → USB Look for the parameter. USB Host support.

⚠️ Note: If the application shows that OTG It is supported, but the devices are not connected, the problem may be insufficient power (especially for hard drives 2.5.

Method 3: Manual test with flash drive

If you already have OTG-adapter, connect to it a flash drive with a file system FAT32 (It's supported by all smartphones:

1. Open File Manager on Xiaomi.
2. Check the section USB-storage.
3. If the flash drive is displayed — OTG If not, try another adapter or update the firmware.

Step-by-step instruction: how to turn on OTG Xiaomi

If your smartphone supports you OTG, But the function is not activated, so follow this instruction. Most of the time, the setup is just to plug in the adapter, but sometimes you need to do more.

Step 1: Preparation of the adapter

Choose an adapter depending on the connector of your smartphone:

• 🔌 For USB-C (Most models after 2018: adapter USB-C (male) → USB-A (female).
• 🔌 Micro-USB (older models like Redmi) 4X): Micro-USB adapter (male) → USB-A (female).

Important: Use supportive adapters OTG (The label on the package should be OTG or USB Cheap adapters without labeling may not work.

Step 2: Connecting the device

Insert the adapter into the smartphone and then connect USB-device (e.g. flash drive) a notification should appear on the screen:

• 📳 "USB-The drive is connected if everything is working.
• ⚠️ "USB-Device not supported if there is a compatibility issue.
• ⚡ "Insufficient power" - if the hard drive is connected without an external power source.

Step 3: Setup MIUI for OTG

If the device is not automatically recognized:

1. Open the Settings. → Connected devices (or Settings) → Additionally. → OTG older versions MIUI).
2. Activate the USB OTG switch (if you have one).
3. Reboot your smartphone and reconnect.

Step 4: Solving Recognition Problems

If the smartphone does not see the connected device:

• 🔄 Try another adapter or cable.
• 📱 Reboot your phone and reconnect.
• 🔧 Update the firmware through Settings → The phone. → Updating the system.
• 🛠️ For hard drives, use an externally powered hub.

💡

If you plug in a keyboard or mouse but they don’t work, check their compatibility with Android.Some devices (such as wireless keyboards with proprietary drivers) may not be recognized.

Compatibility table OTG For popular Xiaomi models

Below is a table with information on support OTG For the popular smartphones Xiaomi, Redmi and POCO. Data is based on official specifications and user tests.

⚠️ Note: On models with Micro-USB (e.g. Redmi 5 or Redmi Note 4) OTG It can be unstable due to power restrictions. Use an active hub with an external power supply to connect your hard drives.

Common mistakes OTG Xiaomi and their solutions

Even if your smartphone supports you OTG, When you connect devices, you can have errors, and we'll look at the most common ones and how to fix them.

Mistake 1: "USB-device is not supported"

This error occurs when:

• 🔌 Uncertified adapter is used.
• 📁 The flash drive is formatted in NTFS (MIUI It only supports defaulting FAT32 exFAT).
• 🛠️ The device requires more power than a smartphone can give (relevant for hard drives).

Decision:

1. Format the flash drive in exFAT via a computer.
2. Use an externally powered adapter for hard drives.
3. Check the adapter on another device.

Error 2: The flash drive connects, but the files don't show up

Reasons:

• 📂 File system NTFS or ext4.
• 🔒 The flash drive is encrypted or protected from recording.
• 📱 V MIUI Access to external media is disabled.

Decision:

1. Transformat the flash drive into FAT32 (Maximum file size – 4 GB) or exFAT (without restrictions).
2. Check the flash drive on your computer – it may be damaged.
3. Enable the display of hidden files in Explorer MIUI (three-point → Settings → Show hidden files).

Mistake 3: OTG It works, but the smartphone is quickly discharged.

Connecting devices through OTG It increases energy consumption, especially if it's a hard drive, to reduce battery consumption:

• 🔋 Connect your smartphone to charging while in use OTG.
• 📵 Use the plane mode if you don’t need the internet.
• ⚡ Disable background apps through Settings → Battery → Optimization.

How to connect a hard drive to Xiaomi via OTG

Connecting an external hard disk (HDD/SSD) through OTG It requires more power than a smartphone can provide, so for stable operation, follow this instruction:

Step 1: Check the compatibility of the disk

Xiaomi smartphones support hard drives with:

• 📀 Interface. USB 3.0/2.0 (Discs with eSATA or Thunderbolt are not suitable).
• 📁 File system FAT32, exFAT or NTFS (The latter requires additional).
• ⚡ From food USB (2.5"discs" or external source (3.5"discs).

Step 2: Use a powered hub

To connect 2.5" disc:

1. Buy it. USB-externally powered hub (e.g. Anker) 4-Port USB 3.0 Hub).
2. Connect the hub to charging through Micro-USB/USB-C port.
3. Insert the hard drive into the hub and the hub into the hub. OTG-smartphone adapter.

3.5" discs will require dual power (from the socket) + hub).

Step 3: Setup MIUI disk-operated

After connection:

1. Open the Explorer and wait for the section to appear. USB-accumulator.
2. If the drive is not displayed, restart the smartphone.
3. For NTFS Install the Paragon app NTFS & HFS+ (requires root) or Total Commander with a plugin.

💡

Hard drives larger than 2TB may not be recognized on Xiaomi due to the limitations of the exFAT file system. In this case, split the disk into 2TB partitions or use the disk. NTFS supplementary.

Additional opportunities OTG Xiaomi

OTG Xiaomi smartphones can be used for more than just file transfers. Here are some non-obvious scenarios:

1. Connecting the keyboard and mouse

To work with documents or games:

• ⌨️ Connect. USB-keyboard or Bluetooth keyboard via OTG-adapter.
• 🖱️ The mouse will work in both cursor mode and in games (for example, in Call of Duty Mobile).

Advice: C Settings → Additionally. → Language and input → Physical keyboard can be configured layout.

2. Gaming controllers

Xiaomi smartphones support:

• 🎮 Xbox Controller (via Xbox Controller) OTG Bluetooth).
• 🎮 DualShock 4/5 (Requires a wired connection or adapter).
• 🎮 Controllers 8BitDo (Compatible with most games).

To set up:

1. Connect the gamepad through OTG.
2. In the game, select the Gamepad control mode.

3. Connecting the camera or card reader

To transfer the photo from the camera:

1. Connect the camera through USB mode PTP (It is usually selected from the camera menu).
2. Open the Gallery or Explorer on Xiaomi.
3. Copy files into internal memory or microSD card.

4. Remove sound to USB-headset

Some models (Xiaomi 12 Pro, Redmi) K50) support the connection USB-C headphones or external sound cards through OTG. For that:

1. Connect. USB-headset.
2. B Settings → Sound select the output device.

FAQ: Frequent questions on OTG Xiaomi