Samsung Magician Diagnostic Scan 850/870 EVO/970 EVO Plus Not Supported

What Is Samsung Magician?

Samsung Magician is a free software developed by Samsung specifically for managing and optimizing Samsung SSDs. With it, you can enjoy features like performance benchmarking, secure erasing, firmware updates, etc.

However, some users report “Samsung Magician Diagnostic Scan not supported”, which is frustrating. Don’t worry about it much, and we’ll show you 7 simple and effective methods to fix it.

Common Causes of the "Diagnostic Scan Not Supported" Error

Before fixing the "Diagnostic Scan not supported" error, it’s crucial to get the possible reasons behind it. Here are some common causes as follows:

Incompatible SSD Model: Not all Samsung SSD models support the Diagnostic Scan feature, especially for some older or budget models lacking the required hardware. If your SSD isn’t on the list of supported models, the diagnostic scan may not be available.

Outdated Samsung Magician Software: If you're using an older version of Samsung Magician, it could trigger the “Diagnostic Scan Not Supported” error. Software updates often include bug fixes and new features, so keep the program up to date for smooth running.

Firmware or Driver Issues: Your SSD's firmware or drivers may be outdated or incompatible with Samsung Magician. This mismatch can prevent the diagnostic scan from running, as the software may not be able to communicate properly with the drive.

Hardware Limitations: Sometimes, physical issues with your computer’s connection ports or cables can affect the diagnostic scan. If the SSD isn’t securely connected or if there are hardware limitations, the scan might not work as expected.

How to Fix the "Diagnostic Scan Not Supported" Error

Here are 5 simple and effective methods to fix the "Diagnostic Scan not supported" error.

Fix 1: Check SSD Compatibility

Not all Samsung SSDs support diagnostic scanning, especially older models or entry-level drives. So it’s important to verify whether your Samsung SSD supports this feature to avoid unnecessary troubleshooting.

Step 1. Visit the Samsung support page and look for your specific SSD model.

Step 2. Check the product specifications and see if diagnostic scanning is listed as a supported feature.

Step 3. If your SSD model is not compatible, you may need to upgrade to a supported version for this feature to work or use alternatives.

Fix 2: Check for Hardware Issues

Hardware issues, such as loose connections or damaged cables, can prevent the diagnostic scan from working. Be sure your SATA cable or M.2 connector is securely connected to both SSD and the motherboard.

Sometimes, a particular port might be faulty. Try connecting the Samsung SSD to a different port on your computer to see if that resolves the issue. If not, the cable might be damaged. Please replace it with a known good one.

Fix 3: Update Samsung Magician to the Latest Version

Updating Samsung Magician is one of the simplest and most effective ways to resolve the "Diagnostic Scan Not Supported" error. Outdated software may cause compatibility issues with newer SSD models, which is why keeping your tools updated is essential.

Step 1. Open Samsung Magician on your computer. Then, navigate to Settings and click Check for Updates.

Step 2. Download and install the available newer version of Samsung Magician. You need to restart this software afterward.

Fix 4: Update SSD Disk Drivers

Next, ensure your SSD drivers are up to date. To do this, you can either download the latest drivers directly from the Samsung website or use Device Manager to update the drivers automatically.

Step 1. Right-click on the Start button and select Device Manager.

Step 2. Under Disk drives, find your Samsung SSD, right-click it, and select Update driver.

Fix 5: Update Outdated or Incompatible Firmware

Outdated or incompatible firmware can often prevent the diagnostic scan from running smoothly. Please keep it updated so that it works with the latest features of Samsung Magician, including Diagnostic Scan.

Step 1. Launch Samsung Magician. Locate the Firmware Update section in the main interface.

Step 2. If available, you’ll see an option to update. Click on it and follow the on-screen instructions.

Step 3. After completion, restart your computer to ensure the changes take effect.

Fix 6: Switch to AHCI Mode

If your system is set to RAID/IDE mode, it may limit certain advanced SSD features, including the Diagnostic Scan. Switching to AHCI mode allows full SSD functionality, making it easier for Samsung Magician to communicate with the drive.

Step 1. Hold Shift and click Restart from the lock screen to access BIOS.

Step 2. Locate the SATA mode or configuration setting and change it from RAID (or IDE) to AHCI. Save changes and exit.

Step 3. Your PC will restart and boot into Safe Mode. Access System Configuration and uncheck Safe boot, click Apply > Restart

After restarting, Windows should be running in AHCI mode. You can confirm this in Device Manager under IDE ATA/ATAPI Controllers or Storage Controllers.

Fix 7: Install NVMe Driver

For newer Samsung NVMe SSDs, the NVMe driver is required to enable certain advanced features. Without it, Samsung Magician may not be able to communicate with your Samsung SSD properly.

Step 1. Visit the Samsung software or tool download page and navigate to the download section for the Samsung NVMe driver.

Step 2. Download and install the latest Samsung SSD NVMe driver.

Step 3. After installation, restart your computer to ensure the driver is fully integrated.

Try Samsung Magician Alternative if Diagnostic Scan Still Doesn’t Work

Samsung Diagnostic Scan is primarily used to check the health of the Samsung SSD disk, soyou can try Windows built-in tools to find and repair disk errors. Also, some users even report that all features are not supported, e.g., Data Migration.

Check Disk Errors with Windows Built-in Tools

If Samsung Magician is still showing the "Diagnostic Scan Not Supported" error, you can use Check Disk (chkdsk), a Windows built-in tool, as a temporary solution. This tool helps scan and fix errors on your drive, such as bad sectors or file system issues, which may affect its performance.

Step 1. Open File Explorer and locate the Samsung SSD drive you want to scan. Right-click the drive and select Properties.

Step 2. Go to the Tools tab and click on Check under the "Error checking" section.

Step 3. Windows will begin scanning the drive for errors. If it finds any, it will give you the option to repair them. Just click Repair Now to continue.

Clone Hard Drive with Samsung Magician Alternative

If Samsung Magician can't recognize your drive and you need to clone hard drive to Samsung SSD, using a reliable cloning tool - AOMEI Cloner is a great alternative. It allows you to copy all the data from your existing drive to a new one, which is useful if you're looking to upgrade hard drive or for backup purposes.

AOMEI Cloner

Best Samsung Magician Alternative for Cloning

• Clone HDDs/SSDs and MBR/GPT disks with secure boot.
• Intelligent (default) or sector by sector clone a drive for different scenarios.
• Automatically resize partition size while cloning drive to larger drive.
• Boost SSD disk performance with 4K technology.
• Compatible with all series of Samsung SSDs, e.g., Samsung 850/870 EVO, 970 EVO Plus, 980/990 Pro, etc., as well as other brands.
• Create bootable USB drive, CD/DVD, or ISO file to clone hard drive without booting into Windows.

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Step 1. Open the software after installing and select Clone > Disk Clone on the main page.

Step 2. Choose the source drive (the drive you want to clone) and destination drive (the new drive where the data will be copied to).

Step 3. Be sure to check SSD Alignment for faster speed. Click Edit Partitions to convert and clone MBR to GPT, or vice versa. At last, click Start Clone to get started.

Once complete, you can use your new cloned drive as a replacement for the original.

Download AOMEI Cloner for easy cloning!

Conclusion

You can easily fix the Samsung Magician Diagnostic Scan not supported error with 6 simple and effective methods. If they don't work, consider using chkdsk to check for disk errors, or cloning your drive with a tool like AOMEI Clone as an alternative.

Regular maintenance of your Samsung SSD, including using Samsung Magician for firmware updates, health checks, and diagnostics, is key to ensuring your drive stays in top shape. By troubleshooting common issues and keeping everything updated, you can avoid many problems and extend the life of your SSD.