How to format a flash drive on Xiaomi Redmi Note 8 Pro: all the ways and tips

The Xiaomi Redmi Note 8 Pro is still a popular smartphone among users who value performance and functionality. One of the common tasks is working with external drives, such as microSD cards (flash drives), Formatting may be required at the first sign of failure, slow operation or before using the card in another device, but not everyone knows how to do it correctly so as not to lose data and damage the USB drive itself.

In this article, we will discuss all the current formatting methods: through the built-in tools of the smartphone, using the PC (if the phone does not see the map), and also consider which file system to choose for different tasks, and pay special attention to the typical errors that users of the Redmi Note 8 Pro make and how to fix them.

If you find that the flash drive is not detected, it gives an error "damaged" or just works unstable, do not rush to throw it away. In 80% of cases, the problem is solved by the correct formatting. And to avoid losing important files, we will tell you how to save data before the process and what to do if the formatting is suspended.

When to format a flash drive on the Redmi Note 8 Pro

Formatting isn’t just about cleaning the drive, it’s about creating a new file structure that allows the device to correctly write and read data. On the Redmi Note 8 Pro, this may be required in a few cases:

• 🔄 Memory card is not readable by smartphone or gives an error "damaged"
• 🐢 The flash drive is very slow, files are copied with delays
• 📱 The card was used in another device (camera, DVR) and is not recognized by the phone.
• 🚨 The drive is infected with viruses, and the antivirus recommends a complete cleanup
• 📂 You need to change the file system (for example, with the FAT32 on exFAT for files >4GB)

It's important to understand that formatting completely erases all data from the card, so if there are important files on the flash drive, you need to pre-copy them to another medium, and you shouldn't format the card too often, which reduces the card's resource.

⚠️ Note: If the flash drive is physically damaged (has cracks, chips or is not inserted into the slot), formatting will not help.

The Redmi Note 8 Pro has built-in formatting tools, but they don’t always make good on serious errors, and if the standard method doesn’t work, you’ll have to plug the card into your computer or use specialized utilities.

Preparing for Formatting: What to Do in Advance

Before you start formatting, follow a few mandatory steps to avoid data loss and possible problems with the memory card itself.

Save all important files from a flash drive to a PC or cloud

Check the map for viruses (if it is read)

Make sure there are no hidden system files on the map

Remove the flash drive from your phone (if formatting via PC)

Charge your phone at least 50% (when formatting via smartphone)-->

Pay special attention to data retention. Even if the card is not correctly identified, try connecting it to the computer through a card reader. Sometimes files can be copied despite reading errors.

1. Insert the flash drive into the card reader and connect to the PC.
2. Open this computer (Windows) or Disk utility (macOS).
3. If the map is displayed, copy the data to a safe location.
4. If not, try recovery software like Recuva or TestDisk.

Also check if the flash drive is used as internal memory (Adoptable Storage in Android). If so, formatting via the phone can cause the system to crash.

1. Go to Settings. → Memory.
2. Find your flash drive in the list of drives.
3. Click Format as Portable if it is used as an internal one.

⚠️ Note: If the flash drive has been formatted as internal memory, it can't be simply removed, which can cause errors in the smartphone.

Method 1: Format flash drive through the settings of the Redmi Note 8 Pro

The easiest way is to use built-in tools. MIUI. This method is suitable if the memory card is detected by the phone but is unstable or requires cleaning.

Instructions:

1. Insert the flash drive into the Redmi Note 8 Pro slot (cards up to 256 GB are supported).
2. Open the Settings → Memory.
3. In the Portable Drive section, select your flash drive.
4. Click on the three dots in the upper right corner and select Memory Settings.
5. Tap to format. → Clean and format.
6. Confirm the action, wait until the completion (usually takes 1-3 minutes).

By default, the phone will offer a file system. FAT32, which is compatible with most devices, but has a file size limit (maximum 4GB) if you need to work with large files (e.g. video in the video format). 4K), Choose exFAT better:

• 📌 FAT32 — Compatible with all devices, but limited to 4GB per file.
• 📌 exFAT – There are no file size limits, but some older devices may not support.
• 📌 NTFS — Not recommended for Android flash drives (may not read).

If the phone does not have the option of selecting a file system, you will have to format via a computer (see the next section).

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If the flash drive doesn’t work again after formatting, try formatting it on another device (like a digital camera), which sometimes helps wake up the problem drive.

Method 2: Formatting via computer (Windows/macOS/Linux)

If the Redmi Note 8 Pro doesn’t see the flash drive or gives a formatting error, use a computer. This is a more reliable method, especially if the card is damaged.

For Windows:

1. Connect the flash drive to the PC through the card reader.
2. Open this computer, find your drive (e.g., Removable Disk (E:)).
3. Right-click. → Format.
4. Select the file system: FAT32 — Compatibility; exFAT for files >4GB; NTFS — Not recommended for Android.

Cluster size

4096 bytes

Start.

For macOS:

1. Connect the flash drive to the Mac.
2. Open the Disk Utility (Programs) → Utilities).
3. Select your drive in the left menu.
4. Press erase.
5. Choose the format: MS-DOS (FAT) — analogue FAT32; ExFAT - for large files.

Erase

For Linux (Ubuntu/Debian):

Use the command gparted or mkfs in the terminal. FAT32:

sudo mkfs.vfat -n "MYFLASH" /dev/sdX1

Where /dev/sdX1 — Your storage device (check out LSBLK) and "MYFLASH" — flash-drive.

After formatting, safely remove the flash drive and check it on the Redmi Note 8 Pro. If the card is still undetected, there may be a problem with the flash drive’s slot or controller itself.

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Formatting via PC often helps to recover “dead” flash drives than built-in smartphone tools, as it allows you to choose low-level parameters.

Method 3: Low-level formatting (to repair damaged flash drives)

If standard formatting didn't work, and the flash drive still doesn't work, try low-level formatting, which completely overwrites all sectors of the drive, which can bring it back to life, but it takes a long time and reduces the card's life.

For this purpose, you will need specialized utilities:

• 🖥️ HDD Low Level Format Tool (Windows) – a universal tool for low-level cleaning.
• 🐧 dd (Linux/macOS) — command for a complete rewrite of the drive zero.
• 📱 SD Formatter (official utility from the SD Association – optimized for memory cards.

Example of use SD Formatter:

1. Download the utility from the official website: SD Card Formatter.
2. Connect the flash drive to the PC.
3. Select your drive in the program.
4. Enter the Overwrite Format option (full formatting).
5. Press Format and wait until it is completed (may take up to an hour).

For Linux/macOS dd command can be used (caution – improper use can erase data from other drives!):

sudo dd if=/dev/zero of=/dev/sdX bs=1M status=progress

Where /dev/sdX — your flash drive (check through lsblk). After completion, format the card into the desired file system.

⚠️ Attention: Low-level formatting irreversibly erases all data without recovery, and it can shorten the life of a flash drive, so only use it in extreme cases.

If the card doesn’t work after that, it’s likely to be physically damaged (the controller or memory is out of order), and then you just have to replace it with a new one.

Errors in formatting flash drives on Redmi Note 8 Pro and their solutions

When working with flash drives on the Redmi Note 8 Pro, users often encounter typical errors. Let's consider the most common and ways to fix them.

If the phone is making an error, "Card" SD It is empty or contains an unsupported file system, which means that:

• 🔹 The map is formatted in NTFS or ext4 (Android doesn't support them).
• 🔹 The flash drive is damaged at the physical level.
• 🔹 The phone slot has poor contact.

Decision:

1. Connect the card to the PC and format in FAT32 exFAT.
2. Check the flash drive on another device.
3. Clean the contacts of the card and the phone slot with a soft brush.

If the flash drive becomes "damaged" again after formatting, it's a sign of wear and tear on the memory cells. Modern microSD cards have a limited record life (especially cheap models), in which case you just have to replace the drive.

How to Choose the Right Flash Drive for Redmi Note 8 Pro

Xiaomi Redmi Note 8 Pro supports microSD cards up to 256 GB (officially). However, not all flash drives are equally good.

• 📌 Speed class: for recording video 4K need UHS-I U3 or V30.
• 📌 Brand: SanDisk, Samsung, Kingston are preferred (cheap no-name cards are often forged).
• 📌 File system: if you plan files >4GB, take a card with exFAT support.
• 📌 Water/dust protection: useful if you use a flash drive frequently in extreme conditions.

For everyday use (photos, music, documents) is suitable card SanDisk Ultra 64 GB Class 10. If you shoot a lot of video in high resolution, it is better to take Samsung. EVO Plus 128GB U3.

Avoid fakes! To test the originality, you can use utilities like this. H2testw (Windows or F3 (Linux/macOS). They test the real size and speed of the map.

Example of a team to check in F3:

f3write /media/yourflash/ && f3read /media/yourflash/

If the actual volume is less than the declared, the card is a fake.

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Cheap flash drives often have a low recording speed, which leads to lags when shooting videos, and the investment in a quality drive pays off with steady work.

FAQ: Frequent questions about formatting flash drives on Xiaomi