How to activate the flash drive on the Xiaomi phone: full instructions with photos and tips

Why Xiaomi can’t see the flash drive and what to do about it

You put a flash drive in a Xiaomi smartphone, but the phone doesn't recognize it, or the device makes an error «USB-Is the drive not supported? the problem is familiar to many Redmi users, POCO Most often this is not due to a breakdown, but with an incorrect setting or absence. OTG-In this article, we will discuss all the ways of connecting. USB-from basic to advanced, including solving typical errors.

Modern Xiaomi smartphones (especially post-2020 models) typically support USB OTG out of the box, but sometimes the feature is disabled in settings or requires an additional adapter.It's also important to consider the format of the flash drive file system: FAT32 works everywhere, and NTFS or exFAT may require manual activation. If you connect the drive for the first time, start by checking compatibility - more on that.

What flash drives supports Xiaomi: requirements for drives

Not all. USB-Drives work equally well with Xiaomi smartphones. Here are the key compatibility criteria:

• 🔌 Type of connector: phones only support USB Type-C or Micro-USB (older models) to connect a standard flash drive USB-A need OTG-adapter (costs 100-300) ₽).
• 💾 File system: optimally — FAT32 (ExFAT is supported by most devices, but may require formatting. NTFS often-unread.
• 📏 Capacity: Up to 256GB – no problem, over (e.g. 512GB or 1TB) may require exFAT and manual mounting.
• ⚡ Nutrition: Some flash drives (especially with LED-The indicator requires more power than the port of the phone can give, in which case the active device will help. OTG-feed-in.

If your flash drive doesn’t match at least one item, your smartphone will either not see it or will give you an error. For example, a 1TB NTFS drive is almost guaranteed to not work without formatting it first. Check the specifications of your device in official documentation or through the Settings app → About phone → Full specs.

Method 1: Connecting through OTG-Adapter (the most reliable adapter)

Most Xiaomi smartphones (including Redmi Note 12, POCO X5, Mi 11) support USB On-The-Go (OTG), but this requires a physical adapter.

1. Buy it. OTG-Adapter (if not already). USB-C Any adapter with a connector is suitable. USB-A (for the flash drive) at one end and USB-C (For older models with Micro-USB, you need a Micro-USB adapter. → USB-A.
2. Put the flash drive in the adapter and the adapter in the phone «USB-drive-in».
3. Open Explorer (Files from Xiaomi or Google Files) and your flash drive will appear in the Devices section.

If the notification does not appear:

• 🔄 Reconnect the adapter (sometimes the contact is broken).
• 🔋 Try another adapter - cheap Chinese models are often unstable.
• 📱 Restart your phone and try again.

Importantly, some adapters have a built-in memory chip and can conflict with the phone. If the flash drive is not detected, try connecting it to a PC — if it doesn't work there, too, the problem is with the drive, not the smartphone.

Method 2: Activate OTG in settings (if the function is disabled)

On some MIUI firmware (especially custom or outdated ones), USB OTG can be disabled by default.

1. Go to Settings → Connections and Sharing → OTG.
2. Activate the USB OTG switch (if you have one).
3. Connect the flash drive through the adapter - now it must be determined.

If the OTG item is not on the menu:

• 🔍 Check the version. MIUI: in older versions (below) MIUI 12) OTG could be called «USB-host».
• 🛠️ Update the firmware: go to Settings → The phone. → Updating the system.
• 📲 Install a third-party management app OTG, for example USB OTG Checker (available on Google Play).

Note: on some devices (e.g. Xiaomi Mi A3 with pure Android One), OTG is enabled via Settings → System → For Developers → USB Configuration (you need to first activate the developer mode by pressing the build number 7 times in About Phone).

Method 3: Formatting the flash drive into the correct format

If the phone sees the flash drive but can't read the files, the problem is most likely the file system. Xiaomi works best with FAT32 and exFAT, and NTFS is not supported on all models.

1. Connect the flash drive to your computer (Windows/macOS/Linux).
2. Open Disk Management (Windows) or Disk Utility (macOS).
3. Find your flash drive, right-click and select “Format”.
4. Specify the file system: 📁 FAT32 — for flash drives up to 32 GB (maximum file size – 4 GB). 📁 exFAT – for flash drives from 64 GB and more (supports files over 4 GB).

Click “Start” and wait until it is completed.

Critical detail: if the flash drive was important data, copy it before formatting - the process erases all information! After formatting, connect the drive to the phone via OTG - now it must be determined without errors.

💡

If you often work with large files (like 4K video), choose exFAT. FAT32 is enough for regular documents and photos.

Error Solving: What to Do When Your Flash Drive Doesn't Work

Even after all the settings, the flash drive may not be detected. Here are the typical errors and their solutions:

• ❌ «USB-drive not supported": "Cause: incompatible file system or damaged drive. Solution: format the flash drive into a file system FAT32/exFAT (see 3).
• ❌ «Device not recognized": Cause: broken OTG-Solution: Try another adapter or check the port for debris.
• ❌ The flash drive connects, but the files don't show: Reason: hidden files or virus Solution: connect the flash drive to the PC, check for viruses and enable the display of hidden files.
• ❌ Phone overheats when connected: Cause: faulty adapter or high-power flash drive. Solution: use active OTG-feed-in.

💡

If the flash drive worked before but suddenly stopped being detected, first check it on your PC. If it doesn't read there, the problem is with the drive, not the phone.

⚠️ Warning: Do not remove the flash drive while transferring files! this may cause data corruption or file system failure.Always use the Safe Retrieval feature in the notification menu.

Alternative methods: cloud storage and wireless flash drives

If a wired connection is uncomfortable or not working, consider alternatives:

• ☁️ Cloud Storage: Upload files to Google Drive, Mi Cloud or Yandex Disk, and then download them to your phone.
• 📶 Wireless flash drives: Devices like SanDisk Connect or Kingston Wi-Drive create their own Wi-Fi network that the phone connects to.
• 🔗 FTP-Server via PC: Configure FTP-server on your computer (for example, via FileZilla) and connect to it from your smartphone via the application FX File Explorer.

These methods do not require OTG-It's an adapter, but it depends on the speed of the Internet or Wi-Fi, for example, it takes much longer to transfer a 10GB movie over the cloud than it does over cable.

FAQ: Frequent questions about connecting a flash drive to Xiaomi