How to Fix “SD card not detected” Error on Galaxy S10, S10E or S10+

Galaxy S10 smartphones are already on the market for a few months. While the devices are top-notch gadgets, there are not free of bugs and glitches. Today, we’ll talk about the “SD card not detected” error on Galaxy S10, S10E, or S10+ and how to fix it. Before proceeding, you should not worry much about this glitch since there might not be anything wrong with your device, but there might be something software-related.

While in some sporadic cases, the “SD card not detected” error on Galaxy S10, S10E, or S10+ might be indeed due to a hardware issue, in the majority of the situations, the glitch is due to a software-related problem. Accordingly, you will be able to sort that out by yourself, by following the solutions presented below.

How to Fix “SD card not detected” Error on Galaxy S10, S10E or S10+

Reboot your smartphone

The first solution to fix the “SD card not detected” error on Samsung Galaxy S10 devices is to restart your smartphone. To do that, you’ll have to press the Power and Volume Down kets concomitantly for a few seconds until the device reboots. In some cases, the Maintenance Boot Menu might pop up. If it does, select Normal Boot and allow the device to restart.

Remove the SD card

Sometimes, the SD card might be incorrectly mounted in its tray. By removing it and remounting it back into the smartphone might solve the “SD card not detected” error on Galaxy S10, S10E, or S10+. The easiest solution would be to turn off your device and remove the SD card. However, in case you don’t want to shut down the device, you must first unmount the SD card from the phone’s Settings sections. Here’s how to do it:

  • Go to Settings -> Storage -> More Options
  • Select Storage Settings
  • Tap on Unmount

You can now extract the microSD tray to remove the SD card.

Check the SD card in another phone

If restarting your device did not fix your issues, then it might be a faulty SD card behind the “SD card not detected” error on Galaxy S10, S10E, or S10+. To see if that’s the case or not, remove the SD card from your Samsung Galaxy S10 device and mount it into another phone. If it’s working, then move on to the next solutions to fix “SD card not detected” error.

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Format the SD card

In case the SD card is not working in another phone, either, you should try to format the SD card once again since the issue might be due to a corrupt format that makes Android impossible to read the external memory. Here’s how to format the SD card:

  • Go to Settings -> Device Maintenance -> Storage
  • Go to More Options -> Storage Settings
  • Press on SD card option
  • Tap Format
  • Confirm your selection

Install another SD card

If none of the before-mentioned solutions worked to fix “SD card not detected” error on Galaxy S10 devices, then your SD card might be faulty. To check out is there’s nothing wrong with the smartphone’s microSD tray, use another SD card. If it works, then the problem is solved, but if it’s not fixing your issue, then you should try some of the next methods.

Reset App preferences

Sometimes, when the Android OS cannot use a system app to read the SD card, the fix is as simple as resetting App preferences. Here’s how to perform that on Galaxy S10, S10E, or S10+:

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  • Go to Settings -> Apps
  • Select More Options and then tap on Reset App Preferences
  • Confirm the selection
  • Reset your device

Use the SD Card in Safe Mode

On some occasions, a conflict between Android system apps might cause the “SD card not detected” error on Galaxy S10, S10E, or S10+. First, you have to enter Safe Mode following the next steps:

  • Turn off your Galaxy S10 smartphone
  • Hold the Power button key and release it when the SAMSUNG logo appears on the display
  • Right away, press and hold the Volume Down button
  • Hold that key until the smartphone restarts, and the Safe Mode text appears in the bottom left corner

Once in Safe Mode, try using the SD card. If it’s working, then the “SD card not detected” error might be due to a third-party app. You can check which application is causing the conflict by taking them out by elimination while in Safe Mode.

Master reset your Galaxy S10 smartphone

If none of the before-mentioned solutions helped you, then the last resort is a factory reset, as always. So, to fix “SD card not detected” error on Galaxy S10, S10E, or S10+, you have to perform a master reset on your device. Here’s how to do that:

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  • Power off your smartphone
  • Press and hold the Volume Up and Bixby buttons for a couple of seconds
  • Press and hold the Power key without releasing the first two
  • Once the Android logo pops up, release all the keys
  • When the Android Recovery Menu opens up, navigate to “Wipe Cache/Factory Reset” and choose Factory Reset
  • Wait until the operation completes

However, if the issue is still present, your device might have a faulty microSD card reader, so you have to contact Samsung for additional support to fix “SD card not detected error” on Galaxy S10, S10E, or S10+.

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