OTG Xiaomi Redmi Note: How to enable, configure and fix problems

Function OTG (On-The-Go on Xiaomi Redmi Note smartphones allows you to connect external drives, keyboards, mice and even game controllers directly through the device. USB-Despite the obvious benefits, many users have difficulty connecting for the first time: the phone does not see the flash drive, gives an error "Device is not supported" or no item at all. OTG In this article, we will discuss the unique nuances of activation. OTG Redmi Notes of different generations (from Note 4 to Note 13), including hidden settings MIUI bypassing manufacturer restrictions.

It is important to understand that OTG Xiaomi doesn't just work with flash drives, it can be used to read files:

• 🔌 Connect externally SSD-storage (with sufficient food)
• 🎮 Use gamepads (such as Xbox or DualShock)
• 🖱️ Work with USB-Keyboards/mouse in DeX mode
• 📷 Import photos from cameras without a computer

However, there are pitfalls: some Redmi Note models (especially budget) artificially limit support. OTG So, for example, the Redmi Note. 8T In standard firmware, it doesn't recognize NTFS-The Redmi Note 10 may require additional power for the hard drives. Next, detailed instructions to take these features into account.

What is it? OTG Why you need it on the Xiaomi Redmi Note

Technology USB OTG (USB On-The-Go turns your smartphone into a full-fledged host device capable of managing the periphery. In the context of Xiaomi Redmi Note, this means:

Main use cases:

• 📁 Transfer files between the phone and the flash drive without a PC (relevant for models with a small amount of memory, for example, Redmi Note 7 at 32 GB).
• 🎵 Reproduction of media directly from an external drive (movies in the 4K, music-collections).
• 🖨️ Printing of documents USB-printers (with support) PTP/MTP).
• 🔧 Diagnostics of the vehicle through ELM327-adapters (for models with OTG-Support for diagnostic protocols).

The difference between the Redmi Note and the flagship Xiaomi (for example, Mi) 11) — limited-capacity USB-Budget Note models often fail to provide enough power to external hard drives (HDD/SSD), demanding 500 In such cases, passive will help USB-feed-in.

⚠️ Attention: Connecting high-power devices (e.g, 2.5" HDD) without a hub can lead to overheating USB-port on the Redmi Note 5/6/7. Symptoms: the phone suddenly discharges or turns off OTG through 10–15 minute.

Verification of support OTG On your Redmi Note model

Not all Xiaomi Redmi Note devices work equally well. OTG. Here’s how to check compatibility:

To find out if your Redmi Note supports OTG:

1. Download the app USB OTG Checker from Google Play.
2. Connect. OTG-cable (even without a flash drive).
3. Launch the application – it will show the support status and version USB.

If the test shows «OTG Not supported, but your model is in the table above, the problem may be in the:

• 🔌 Faulty cable (try another one) OTG-adapter).
• 🔋 Battery discharge (at level) < 20% OTG shutdown).
• 📱 Damaged. USB-port (check for debris or oxidation).

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

In most cases, OTG Redmi Note is automatically activated when you connect a compatible device, but some firmware (especially custom) require manual configuration. MIUI:

Method 1: Standard connection (MIUI 12–14)

For the current models (Redmi Note 10 and later):

1. Connect. OTG-cable to the phone, and to the cable - a flash drive or other device.
2. In the notification that appears, click Allow access to data.
3. Open the Explorer (Files) → section USB-accumulator.

If no notice appears:

1. Go to Settings → Connections and Sharing → OTG.
2. Activate the switch Turn on OTG-host.
3. Reconnect the device.

Method 2: Manual mounting (for NTFS/exFAT)

On the Redmi Note. 8/9 s MIUI 11 below may be required:

1. Install Total Commander or FX File Explorer.
2. In the application settings, turn on Show Root Devices.
3. Connect. OTG-Drive and manually select it in the list of devices.

The flash drive is formatted in FAT32/exFAT

OTG-cable supports your connector (Micro-USB/USB-C)

Battery level >30%

There are no active energy saving modes on the phone.-->

Method 3: Through the Engineering Menu (for older models)

If OTG It doesn't work on the Redmi Note. 4/5, try:

1. In the phone app, type the code ##876##.
2. Choose. USB Settings → OTG Mode.
3. Activate Enable OTG Host and restart your phone.

⚠️ Warning: Changing the settings in the engineering menu may cause a failure USB-Do not change other parameters unless you are sure of their purpose!

Common problems with OTG Redmi Note and their solutions

Even if OTG It's enabled, Xiaomi Redmi Note users often experience errors:

Problem 1: The phone can't see the flash drive

Possible causes and solutions:

• 🔌 Incompatible file system: Redmi Note does not support up to the 9th series NTFS Format the flash drive into the default. FAT32 (up to 32 GB) or exFAT (over 32 GB).
• 📱 Firmware conflict: On custom ROM (For example, LineageOS may not have a driver. OTG. Install the module. USB Host Controller via Magisk.
• 🔋 Insufficient power: Connect USB-External feeding hub (especially for HDD/SSD).

Problem 2: OTG shut down in a few minutes

This problem is typical for the Redmi Note 7-9 due to aggressive energy saving MIUI. Decisions:

• 🔋 Disable Battery Optimization for Applications OTG (Settings → Battery → Optimization).
• ⚡ Enable High Performance in Battery Settings.
• 🔌 Use it. OTG-cable with a capacitor (allows you to save charge when connecting energy-intensive devices).

Problem 3: The keyboard/mouse is not working

If the periphery is not recognized:

• 🖱️ Check Compatibility: Some wireless devices require Bluetooth connectivity, not a Bluetooth connection OTG.
• 🔧 Connect the device through USB-Hub (direct connection may not work on Redmi Note 6 Pro and older).
• 📱 Update. MIUI Up to the latest version (there are no drivers in the old firmware for HID-device).

💡

If OTG It doesn’t work on the Redmi Note 8 Pro with firmware. MIUI 12.5+, try to roll back on MIUI 12.0.2 – Recognition bugs fixed in this version USB-device.

How to connect an external hard disk (HDD/SSD) Redmi Note

External drives require more power than conventional flash drives. For a successful connection to the Xiaomi Redmi Note:

Conditions required:

• 🔌 USB-externally powered hub (e.g, UGREEN 4-Port).
• 📁 Disk Formatting in ExFAT (for Discs) >64GB).
• 📱 MIUI 12+ (In older versions there is no support USB Mass Storage).

Step-by-step:

1. Connect the hub to the charger (5V/2A).
2. Connect the hub to the phone via OTG-cable.
3. Connect. HDD/SSD hub.
4. There will be a notification on the phone «USB-The drive is connected" - press Allow.
5. Open the files. → USB-disk.

Limitations:

• 🚫 Redmi Note 5/6 They don't support disks. >2 TB.
• 🚫 Data transfer speed is limited USB 2.0 (even on models with USB-C).
• 🚫 Some of them SSD (for example, Samsung T7) require additional food.

Alternative uses OTG Xiaomi Redmi Note

OTG And the Redmi Note is not just for drives, but here are some non-obvious scenarios:

1. Connecting game controllers

For gamers:

• 🎮 Xbox Controller: It works without drivers MIUI 12+.
• 🎮 DualShock 4: Requires an application DS4Windows (port).
• 🎮 Nintendo Switch Pro: Connects to Pro Controller Wired.

To configure the controller:

1. Connect it through. OTG.
2. Go to Settings. → Connected devices → Game controllers.
3. Assign buttons manually (if not automatically recognized).

Printing of documents on USB-printer

For print with Redmi Note:

• 🖨️ Make sure the printer supports MTP/PTP (For example, Canon Selphy or HP DeskJet).
• 📄 Install PrinterShare or Canon app PRINT.
• 🔌 Connect the printer through OTG and select the file to print in the application.

3. Diagnostics of the vehicle through ELM327

For car owners:

• 🚗 Buy an adapter. ELM327 Bluetooth/Wi-Fi (but OTG-version is cheaper and more stable).
• 📱 Install Torque Pro or Car Scanner.
• 🔌 Connect the adapter to OBD-II The vehicle port and then to the phone OTG.

💡

To diagnose modern vehicles (e.g. with protocol) CAN FD) Use the VGate iCar adapter 2 — It is compatible with the Redmi Note. 10/11 and supports extended teams.

Safety and optimization of work OTG

Long-term use OTG It can have a negative impact on the battery and USB-Redmi Note port. Follow these guidelines:

How to extend the life of the port and battery:

• 🔋 Don't use it. OTG battery-charge < 15% – This increases the load on the power controller.
• 🔌 Avoid cheap ones. OTG-cables without short circuit protection.
• 📱 Clean regularly USB-Dust port (use a plastic toothpick or compressed air).
• 🔄 Turn it off. OTG-devices when not in use (prolonged connection drains the battery even in standby mode).

How to speed up file transfer:

• 📁 For large files (>1 GB use FX File Explorer – It supports multithreaded copy.
• 🔌 Connect the flash drives through USB 3.0 Hub (even if the port is on the phone) USB 2.0, this will reduce the load on the controller).
• 📱 Turn off window animation in the developer settings (Settings) → The phone. → Version. MIUI → 5 times press).

⚠️ Attention: Connecting non-certified USB-Devices (such as homemade gadgets) can lead to blocking USB-In this case, you will need to reset to the factory settings.

FAQ: Frequent questions on OTG Xiaomi Redmi Note