You connected the flash drive to the Xiaomi smartphone, the Mi TV TV Or another device of the brand, but the system stubbornly does not see it? This problem is more common than it seems — and the reasons can lie in the settings of the device, and in the USB drive itself. In 80% of cases, the malfunction is eliminated without contacting the service center, but for this you need to accurately diagnose the source of the malfunction.
In this article, we will discuss all the possible reasons why Xiaomi does not recognize the new model. USB-It's a drive that goes from the banal lack of permission to the hardware breakdowns of the memory controller, and you'll learn how to check the flash drive on another device, what settings you're setting. MIUI Android TV They affect the detection of drives, and what to do if the problem occurs after the firmware update. USB-carrier.
Special attention will be paid to the technical nuances: why some flash drives work only through OTG-cable as a file system format (FAT32, exFAT, NTFS) It affects recognition, and what to do if the device sees the drive but doesn't display files. At the end of the article, a quick diagnostic checklist and answers to frequent questions.
1. Checking the basic parameters: flash drive vs device
Before you dig deep into the settings, make sure the problem isn't in the basics. Start by checking the compatibility of the flash drive and the device:
- 🔌 Type of connector: Make sure you use the right cable. Xiaomi smartphones require OTG-adapter USB-Type-A TVs (Type-A) Mi TVs TV usually have a built-in USB-The port, but it can only be USB 2.0 — some modern flash drives USB 3.0/3.1 incompatible with them.
- 💾 File system format: Xiaomi devices based on Android or Android TV often supported FAT32 exFAT. NTFS It can be unreadable without additional drivers (especially on older models).
- ⚡ Power: Some flash drives require more energy than they can give USB-Try connecting the drive through an externally powered hub.
If the flash drive is not detected on any device (PC, laptop, other smartphone), the problem is most likely in the drive itself. Try formatting it (saving pre-data!) through the computer in a format. FAT32 It's a cluster size of 4096 bytes:
- Connect the flash drive to the PC.
- Open Disk Management (Win) + R → Enter diskmgmt.msc).
- Find the drive, click the right button → Format.
- Choose. FAT32 and confirm the action.
⚠️ Note: Formatting will delete all data from the flash drive! If it has important files on it, first try to restore them using programs like Recuva or TestDisk.
2. Settings MIUI Android TV: What prevents the detection of the flash drive
The problem is often the software constraints. MIUI Android TV There are settings that can block access to external drives.
For smartphones and tablets Xiaomi:
- 📱 File Access Permit: Go to Settings → Annexes → Application management → Files (or Conductor) → Permits → Turn on the memory.
- 🔒 USB-Debugging: Sometimes it helps to turn on the developer mode. To do this, tap 7 times on the version MIUI In Settings → About the phone, then go back to Additional settings → For developers and activate USB-debugging.
- 🔄 Connection mode USB: When connecting the flash drive through OTG Select in the notification curtain File transfer (MTP), Not Charging.
For Mi TVs:
- 📺 Signal Source: On the remote, press Input (or Source) and select USB. If the option is inactive, the flash drive is not recognized.
- 🔧 Security settings: Go to Settings → Security and limitations → Sources of unknown applications and allow installation from external drives.
- 📁 File system limitations: Xiaomi TVs may not see files on a flash drive if they have custom extensions or are located in deep nested folders.
If you still can't see the flash drive after this manipulation, try restarting the device with the drive connected. Sometimes this resets temporary disruptions. USB-controller.
☑️ Diagnostics of problems with the flash drive on Xiaomi
Hardware problems: from connectors to controllers
If the software settings didn't work, it could be the hardware, and here are the most common scenarios.
| Problem. | Signs. | Decision |
|---|---|---|
| Damaged. USB-port | The flash drive is not detected on any device, the port is wobbly or contaminated. | Clean the port with compressed air or contact the service to replace the connector |
| Faulty. OTG-adapter | Other flash drives through this adapter also do not work. | Try another one. OTG-Check it out on another smartphone or check it out. |
| Problems with the USB controller | The device does not see any external drives, but charges through USB | Diagnostics are required in the service center (it is possible to flash or replace the chip) |
| Incompatibility with USB 3.0 | The flash drive works on a PC, but not on a TV or an old smartphone | Use it. USB 2.0 drive or hub with downgraded version |
The problem with the USB 3.0 for Mi TVs TV They are older than 2019, and their ports often support only the USB 2.0, and the next generation of flash drives may not be recognized, so the solution is to use an adapter or a labeled drive. USB 2.0.
If you suspect mechanical damage to the port, do not try to clean it with sharp objects - this can damage the contacts.
⚠️ Warning: Connecting a faulty flash drive or short-circuit adapter can disable USB-If the drive is warming, smells like a burn, or knocks out the device when you connect, turn it off immediately!
4. Features of firmware and updates
After updating MIUI Android TV Some users are faced with the fact that the device stops seeing the flash drives:
- 🐛 Bagami in firmware: For example, in MIUI 12.5 was a problem with OTG on some Redmi Note models, decided by rolling back on the previous version or waiting for a patch.
- 🔒 Security Policy Changes: New Android Versions May Block Access to External Drives for Uncertified Apps.
- 🔄 Resetting: After the update, permissions for Explorer or Files are sometimes reset.
To check if the problem is related to the firmware:
- Check out the MIUI version in Settings → About the phone.
- Look for bug information for your model in forums (e.g, 4PDA Xiaomi Community).
- If the bug is confirmed, wait for the update or roll back to the stable version via Fastboot.
For Mi TVs, TV PatchWall update is a problem, and after the update, the launcher may not display the connected devices. USB-The solution:
Settings → Applications → Application Management → PatchWall → Clear cache💡
After the update MIUI The flash drive has stopped being determined, try resetting the Files app settings (Settings) → Annexes → Files. → Warehouse → Clearing the data.This often helps without completely resetting the device.
5. The flash drive is visible, but the files are not displayed
The situation where a Xiaomi device recognizes the drive but does not show files is usually associated with:
- 📂 Hidden folders: In MIUI The default system files are hidden. To see them, open Explorer. → ⋮ (menu) → Settings → Show hidden files.
- 🔍 Unsupported formats: TVs Mi TV Do not play.mkv files with specific codecs or.flac high bitrate.
- 🛡️ Write Protection: If the flash drive is locked (Lock lever in On position), the device will see it, but will not be able to read it.
For diagnosis:
- Connect the flash drive to the PC and check if the files are visible there.
- If files are displayed on PC and not on Xiaomi, the problem is with Explorer settings or restrictions. MIUI.
- If files are not visible on the PC, the flash drive could be formatted in an incompatible file system or corrupted.
Xiaomi TVs do not support files with paths longer than 255 characters or names containing special characters (e.g., #,%, &).
6. Solutions for specific models
Some Xiaomi devices have unique features of working with USB-Let's look at the most problematic models:
Redmi Note smartphones 8/9/10 and POCO X3:
On these devices often occurs bug with OTG, When the flash drive is only determined after a full reboot (not a quick restart:
- Is the Regime on? OTG In Settings → Connections and sharing → OTG.
- Is there an energy saving mode in use - it can turn off USB-port.
Mi TVs TV 4S/4A (2018–2020 garland.):
These models don't support exFAT out of the box.
- Format the flash drive into FAT32 (Maximum file size: 4 GB!).
- Use flash drives up to 32 GB – they are less of a problem.
- To run the TV through USB Be sure to use the storage device USB 2.0.
Xiaomi Mi Box S and Mi Stick:
Android devices TV They may not see the flash drives because of:
- Lack of power – connect the drive through the hub with an external power supply.
- Google Play Protect Restrictions – Turn it off in the security settings.
How to turn on support NTFS Xiaomi without root
7. Alternative methods of file transfer
If the flash drive has not been connected, consider alternative options:
| Method | Pluses | Cons |
|---|---|---|
| Cloud services (Mi Cloud, Google Drive) | No physical connection required, access from any device | Limitation on the speed and volume of free storage |
| FTP-server(s) FX File Explorer, Solid Explorer) | High speed transmission over a local network | You need to configure the connection, depends on the stability of Wi-Fi |
| Bluetooth or Wi-Fi Direct | It works without the internet. | Slow speed, file size restrictions |
| SD-card (for smartphones with a slot) | Reliability, high speed. | Not suitable for TVs and devices without slots |
To transfer large files (e.g. movies to Mi) TV) optimally DLNA. Install the LocalCast or BubbleUPnP app on your smartphone, and turn on Miracast in the network settings on your TV.
💡
If Xiaomi can't see the flash drive, check it on another device first. If the problem repeats, the drive is faulty. If the flash drive works elsewhere, look for the reason in the settings. MIUI or hardware constraints.