Removing the flash drive from a Xiaomi smartphone seems like a simple operation — just take the drive out of the connector. However, the wrong actions can lead to data loss, file system damage or even breakage. USB-This is especially true for users who use the flash drive as portable storage to transfer files between devices or expand memory through a portable storage device. OTG-adapter.
In this article you will find a step-by-step guide to safe extraction. USB-Xiaomi phone drive (including models on the phone) MIUI 12-14 We'll also look at the hidden risks that the system doesn't warn about, and we'll explain why you can't just pull the flash drive hot, how to check that you're done recording, and what to do if the phone doesn't recognize the drive after it's been removed.
Why you can’t just take the flash drive out of your Xiaomi phone
Many users are used to extracting USB-It's a safe extraction drive, but with smartphones, it's a "take-and-forget" drive, and it's dangerous for three reasons:
- 🔄 Data caching: Xiaomi (like other Android devices) uses a clipboard to speed up file processing. If you remove the flash drive while writing to cache, some of the data may disappear or be damaged.
- 📱 Background Processes: Applications (such as Gallery or Files) can scan the drive in the background even if you don’t see the activity indicator.
- ⚡ Electrostatic discharge: Abrupt shutdown USB-devices during data transmission can cause a voltage surge, which is dangerous for the controller of the flash drive and the port of the phone.
Unlike PCs, where the operating system blocks the recording when it is safely extracted, MIUI and HyperOS do not always force the external drive to be terminated, which means that even after pressing the Remove button in the notification, files can remain suspended in the device’s memory.
Official method: safe extraction through notification
The most reliable method is to use the built-in safe extraction feature that is available in MIUI and HyperOS. Here's how it works:
- Connect the flash drive to the phone through OTG-Adapter (or directly if the model supports the USB-C/Type-C function OTG).
- Wait for the notification to appear. USB-drive is connected in the upper panel.
- Swipe down the screen to open the notification bar.
- Click on the connected drive notification (usually labeled USB for file transfer or USB Charge).
- In the window that opens, select Extract or Safe Extract.
- Wait for the message. Can be retrieved. USB-The storage device - only after that remove the flash drive.
If the notification does not appear, check:
- 🔌 Connection is correct (maybe the adapter does not support the device) OTG).
- 📱 Settings USB In the Settings section → Connected devices → USB (The file transfer mode must be selected).
- 🔄 Restart your phone – sometimes the system won’t recognize the drive due to driver failure.
☑️ Checking before removing the flash drive
What to do if a safe extraction notification does not appear
Sometimes Xiaomi doesn't show a notification about the connected flash drive, this may be due to:
- 🛠️ Disabled notifications for system applications (e.g., Storage or Files).
- 🔧 The wrong regime. USB (The phone can recognize the flash drive as a charger).
- 🐞 Work failure MIUI/HyperOS (especially after updates).
Decisions:
- Enable notifications for system applications: Settings → Annexes → Application management → Three points (⋮) → Show system-based → Find the Vault or "USB" → Notifications → Turn on all the switches.
- Check USB Mode: Settings → Connected Devices → USB → Select File Transfer (MTP)
- Use an alternative method of extraction through Settings → Warehouse → Three points (⋮) → USB-accumulator → Extract.
Why can't the phone see the flash drive after it's removed?
Hidden risks: what happens to the flash drive when the wrong extraction
Abrupt blackout USB-The storage system may lead to the following problems:
| Problem. | Reason. | How to avoid |
|---|---|---|
| Loss of files | Files do not have time to write from the cache to the drive. | Use Safe Extract and wait for the copy to be completed. |
| File system damage (RAW, FAT32 → "unknown format") | Interrupting the write operation into a partition table (for example, when formatting). | Do not remove the flash drive during formatting or error check. |
| Failure of the flash drive controller | Power surge in abrupt shutdown. | Avoid extraction during data transfer (especially when connecting to charging). |
| Error "Device not recognized" on other gadgets | Damage to service data (e.g. MBR) | Before extracting, check the flash drive for errors through the PC (chkdsk utility). |
Cheap flash drives without protection from voltage surges and drives with exFAT file system are especially vulnerable (it is more often damaged when disconnected incorrectly than FAT32).
chkdsk X: /fwhere X is the letter of the disk, and this can repair the damaged sectors without losing data.-->
How to remove the flash drive if the Xiaomi phone is getting stuck
If Xiaomi's smartphone is stuck while working with a flash drive, don't try to take the drive out by force - this can aggravate the problem.
- Reboot the phone: 🔄 Hold the power button. 10-15 seconds until the screen goes out. 📱 After restarting, check the integrity of the files on the flash drive.
- If the phone doesn't respond: 🔋 Turn off the charger (if connected) – sometimes this will unlock USB-port. 🔌 Carefully remove the flash drive through 5-10 seconds after the screen is turned off (but not before!).
- Check the flash drive on another device: 💻 Connect to your PC and run chkdsk (see tip above). 📱 If files are damaged, use recovery software (Recuva, TestDisk).
⚠️ Note: If Xiaomi phone makes a mistake "USB-device is not recognized after extracting the flash drive "hot", do not connect other drives - this can damage USB-The phone controller, first, reset the device.
Frequent User Mistakes and How to Avoid Them
Even experienced Xiaomi owners make mistakes when working with flash drives.
- 🚫 Extract while copying: Many people don’t notice that files are still being copied in the background (for example, when transferring a large video.
- 🔋 Connecting to charging + flash drive at the same time: Use of OTG-The connected-charging adapter puts additional stress on the port, which can cause overheating or power failure.
- 📲 Ignoring the warnings of the system: If MIUI It shows a message, "Preparation is in progress." USB-“drive” cannot interrupt the process – this can lead to the loss of all data on the flash drive.
- 🔄 Frequent file system change: Reformatting the flash drive from FAT32 ExFAT and back again shortens the life of the system. Choose one file system and stick to it.
💡
The most common cause of data loss is interruption of the recording operation. Always wait for the copy to be completed, even if the indicator on the screen has disappeared (background processes can last for another 10-30 seconds).
Additional tips for Xiaomi users
To minimize the risks when working with external storage:
- 📁 Use the originals. OTG-Cheap adapters without voltage surge protection can damage USB-Phone port or flash drive. It is better to buy certified accessories (for example, Xiaomi) USB-C to USB Adapter).
- 🔄 Check your flash drive regularly for errors: Connect the drive to your PC once a month and run chkdsk or CrystalDiskInfo for health diagnostics.
- 📱 Update the firmware: In new versions MIUI HyperOS has improved the work with OTG Check the updates in Settings. → The phone. → Updating the system.
- 🔋 Avoid using a flash drive when battery is low: If your phone is below 15%, Xiaomi can automatically turn off OTG to save energy, which will cause a failure.
For models with a microSD slot (such as the Redmi Note 10 Pro or POCO X3 Pro), the rules are the same: before retrieving the memory card, use the Safe Retrieval function in the storage settings.