How to check the OTG function on Xiaomi smartphone: all ways with photos and videos

Function OTG (On-The-Go allows Xiaomi smartphones to connect external USB-And devices, from flash drives to keyboards, without middlemen like a PC, but not all models support this protocol, and in some cases, they don't. OTG It can be software-based, it can be fast and accurate. OTG on your Redmi, POCO or Mi?

In this article, we will discuss 5 reliable methods of verification. OTG — built-in MIUI to third-party applications and physical tests with USB-You'll learn how to determine support. OTG Even without the cable, what Xiaomi models are guaranteed to be compatible with the feature, and what to do if the smartphone does not see the connected flash drive.

1. OTG check through Xiaomi settings (no cable)

The quickest way is to look at system settings. In MIUI 12/13/14, OTG support information is hidden in the About Phone menu, but not always obvious.

1. Open the Settings. → The phone.
2. Tap 5-7 times on the MIUI version to activate the developer mode (if not already enabled).
3. Return to the main settings menu and select Additional → For developers.
4. Scroll down to the Network block and find the default USB configuration.

If there is a USB OTG or Host controller in the list of available modes, your smartphone supports the function at the hardware level. Please note: the presence of the item does not guarantee the OTG performance when connecting devices - this is only a confirmation of hardware compatibility.

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On some models (e.g. POCO X3 Pro), the USB Configuration option may not be available even with OTG support.

2. Applications for testing OTG: TOP-3 utilities

If you don't have an explicit OTG setting, use specialized apps that not only check the support for the feature, but also test data speeds, compatibility with different types of devices.

• 📱 USB OTG Checker – a minimalist utility that shows the status OTG (Supported/not supported) and protocol version.
• 🔌 OTG Troubleshooter – diagnoses connection problems, offers solutions for common errors (e.g. power shortages).
• 📊 USB Device Info – displays detailed information about connected devices, including voltage and current, useful for diagnosing faulty cables.

How to use:

1. Install any of the applications (links to Google Play).
2. Connect. OTG-cable to the smartphone (even without the device at the other end).
3. Run the utility and wait for the scan result.

Important: Some apps may show false positives on devices with MIUI 14+ due to changes in the API. If the program claims that OTG is supported but the smartphone does not see the flash drive, check the cable or try another method.

Physical check: connection USB-device

The most reliable test is to connect a real device through a OTG-That's gonna take a cable:

• 🔌 OTG-Cable (preferably original from Xiaomi or certified).
• 💾 USB-flash drive (formatted in FAT32 exFAT).
• ⌨️ Keyboard/mouse (for test) HID-device).

Step-by-step:

Connect. OTG-smartphone-mount

Put the flash drive in the cable.

Wait for the notice"USB-plug-in"

Open the file manager (e.g. Google Files)

Check the display of the flash drive in the section"USB-accumulator"-->

If the flash drive is not detected:

⚠️ Note: Some Xiaomi models (e.g. Redmi Note 10 Pro) require permission to access the device. USB Once the device is connected, pull the notification curtain and tap the message. USB, Then select File Transfer or USB-accumulator.

4. Verification through ADB: for advanced users

If you're familiar with ADB (Android Debug Bridge), you can check the OTG through the command line, which is a method that's good for diagnosing system-level problems.

Instructions:

1. Activate USB Debugging in the developer settings (Settings → Additional → For developers).
2. Connect your smartphone to your PC and open the terminal (or cmd in Windows).
3. Enter the command: adb shell dumpsys usbmode

In the conclusion, look for the lines:

• mCurrentMode = 1 – OTG is enabled.
• mOtgEnabled=true – Support for OTG at the hardware level.
• mHostModeSupported=true – A smartphone can work as a host.

If there are errors in the output such as Permission denied, run the command with superuser rights (root required):

adb shell su -c dumpsys usbmode

5. OTG compatibility on Xiaomi models: table

Not all Xiaomi smartphones support OTG in the same way, and below is the compatibility table of popular models (data is relevant for MIUI 14):

Note: Even if the model supports OTG, some USB-The devices may not work because of:

• 🔋 Underpowered (e.g., 2.5′′ hard drives require an additional source).
• 🛠️ Incompatible file system format (use) FAT32 exFAT).
• 🔌 Cheap uncertified OTG-cables (may not have pin data).

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If your model isn't in the table, check the OTG through apps or a physical connection.The manufacturer can change the feature support across different regional versions of smartphones.

6. Frequent OTG issues on Xiaomi and their solutions

OTG may not work even on supported devices.

⚠️ Attention: if after connection USB-The smartphone starts to warm up or discharge quickly - immediately turn it off! This is a sign of short circuit in the cable or incompatibility with current.

Problem 1: The smartphone can’t see the flash drive.

• 🔄 Reconnect the cable by selecting File Transfer Mode in the Notification Curtain.
• 📁 Transformat the flash drive into FAT32 (PC).
• 🔌 Try another one. OTG-cable (better with a chip) PL2303).

Problem 2: The device is detected, but the files are not opened.

• 🔒 Check the permissions to access files (on the flash drive there may be restrictions).
• 📱 Update the file manager (for example, Mi File Manager is often bugged by the file manager). OTG).
• 🛠️ Install an alternative conductor (Solid Explorer or Solid Explorer) FX File Explorer).

Problem 3: OTG worked but stopped after the MIUI update.

• 🔄 Reset the settings for developers (Settings) → Additionally. → For developers → Reset the settings).
• 📲 Reverse to the previous firmware version (if the update is beta).
• 🔧 Clear the cache of system applications (Settings) → Annexes → Application management → Three points. → Show system-based → USB-setting).

FAQ: Answers to Frequent Questions