Have you ever inserted your SD card into a computer, camera, or device, only to see the error “Inserted SD Card Has an Incompatible File System”? Don’t panic—this is a common problem, and in most cases, you can fix it without losing your important files.
In this guide, we’ll explain what this error means, why it happens, and step-by-step solutions to repair your SD card, recover lost files, and prevent the issue in the future.
When your SD card shows this error, it usually means the card’s file system is RAW or formatted in a way that your device cannot read.
Windows, Android, cameras, and game consoles typically support these file systems:
If your SD card has become RAW or corrupted, your device won’t recognize it and will prompt you to format the card—which erases all data.
Before you try any fix, back up your files if possible. If you can’t access your data, use a recovery tool (see section below).
Windows Command Prompt allows you to repair and reformat a corrupted SD card.
⚠️ Warning: This process will erase all data. Recover your files first if needed.
Steps:
diskpart list disk select disk X (replace X with your SD card number) clean create partition primary format fs=fat32 quick assign exit
Video - how to fix sd card unsupported file system error
Quick fix -> how to solve inserted sd card with unsupported file system
If your SD card contains important files, you should recover data before formatting. Freeware often fails or carries risks, so use a free trusted recovery tool like iCare Data Recovery Free.
Steps to Recover Data:

If CMD feels complicated, try Windows Disk Management:
To avoid the “incompatible file system” issue in the future:
1. Can I fix the incompatible SD card without formatting?
👉 If the card is only slightly corrupted, tools like CHKDSK or data recovery software may repair it without full formatting.
2. What is the best file system for SD cards?
👉 Use FAT32 for universal compatibility, exFAT for files larger than 4GB, and NTFS if you only use the card on Windows PCs.
3. My SD card shows 0 bytes—what does that mean?
👉 It likely became a RAW drive, meaning Windows can’t detect the file system. Use recovery software before formatting.
4. Will formatting fix my SD card permanently?
👉 Formatting repairs file system errors but won’t fix physical damage. If issues continue, replace the card.
The error “Inserted SD Card Has an Incompatible File System” doesn’t mean your card is useless. By using CMD, Disk Management, or recovery tools, you can repair the SD card and recover your files. Always remember to back up your data and safely eject your SD cards to avoid future corruption.
🔗 Download iCare Data Recovery Free to recover your files before formatting.
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Background
The system says your file system is not compatible when your insert your sd memory card? Don’t worry, repairing a compatible file system sd card without data will be easy if you have this tool.
Video - how to fix sd card unsupported file system error
Quick fix -> how to solve inserted sd card with unsupported file system
Table of Contents:
Attention:
1. Try not to type a wrong word when you run CMD command prompt, a mistake can make your another hard drive get effected.
2. This process will formatted all your data on the SD card, do not jump the process to recover you data if you have need data on it.
Step1: Run CMD.
Repair incompatible file system SD card data with CMD
Step2: Type“format X: /fs:fat32”(X is the drive letter of your RAW SD card)

After it finished, the file system will be converted into FAT32, you can also change the “fat32” in the command line into “ntfs”, then you can convert the file system into NTFS file system.
If you have important data on your raw SD card, you need to recover the data before you use CMD command prompt. CMD diskpart will format your data on your device.
Here you need a professional data recovery tool, my advice is choose a reliable one, pass those freeware, they may fail to recover your data and do harm to your computer the same time, most of them have malware or plug-ins alongside. You can try iCare Data Recovery Free, which has been tested is 100% work and safe. It is also easy to use. You can follow this simple instructions here:
Step1:  
Download  this data recovery program, install it on your computer.
Step2: Run it on your computer, choose “Deep Scan Recovery” mode or “Raw Drive Recovery” mode to scan your SD card.
Recover incompatible file system SD card data with iCare Recovery Free
Step3: Preview the found data after Scanning, select your data to recover, save it to another drive.
Recover incompatible file system SD card data with iCare Recovery Free
The file system supported by Windows are FAT32, NTFS, exFAT, etc. If the file system of your device has an incompatible file system, it always means your drive becomes raw, raw is a type of file system, it is an original file system which can not be recognized by Windows, when you perform some improper operation on your device, like interrupt a data transferring or eject the SD card suddenly, or you used the device after a long time, it may becomes raw drive when you insert your drive, then the device can not be opened and the device space shown as 0 byte. You will need to format the raw drive to convert it into NTFS, FAT32, etc. But for most times it is not working, when you try to format the disk, Windows will fail to format the drive. Here I recommend CMD command prompt, a system command tool on Windows.
“When I inserted SD card into my computer, it says the card has an incompatible file system. The message is like: The inserted sd card has an incompatible file system, to continue, amazon fire tv must format your card to fat32. I don’t know what this exactly means, but I can not format the SD card, I have very important work files on it. How can I repair the SD card without losing my files and photos on it?”
In fact, you don’t need to lose any data on the SD card. There are solutions to help you to repair the SD card with incompatible file system and keep your data safe.
Last updated on Aug 22, 2025
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