Troubleshooting Four Common microSD Card errors with Samsung Galaxy Note 2 [Part 2 of 2]


//This is the continuation and last part of the prior post on four common microSD card errors with Samsung Galaxy Note 2.

C. microSD Card Unmounting Problems

There also some instance when you cannot unmount the microSD card, possibly because the microSD card is being used by any active application in the background. In this case, you have to let the application finishes its current action and have it closed to proceed with unmounting the card.


  1. Open the Task Manager. To do so, just press and hold the Home key for 1 to 2 seconds and touch the pie icon to continue.
  2. From the available tabs, select the Active applications tab.
  3. Touch End all.
  4. Read and review the prompt and touch OK to continue.
  5. Try to unmount the card again by following these steps:
    1. Touch the Menu icon from the home screen.
    2. Touch to select Settings.
    3. Touch to select More options for storage.
    4. Touch Unmount SD card.

D. microSD Card Unable to Format

When you cannot format the microSD card, it is possible that you are using unsupported microSD card or it is write protected. In this case, we recommend you to follow the standard process to determine the cause and then get the problem solved.

  1. Remove the battery for 30 seconds with the device still on. Wait for a moment and replace the battery.
  2. Turn on the device.
  3. If you were able to use the card in other device, it is possible that the card may be write-protected. If it is write-protected, it cannot be formatted.
  4. Remove the write protection to enable the card. To do so, you have to install the card in the original device and remove the write protection. If you do not have the original device, then you have to use a different card in this device instead.


  1. Check for any signs of liquid damage on the device. See the LDI inside the battery well and on the battery itself and see if they are in solid white or white with visible pink/purple Xs. Otherwise, the device is experiencing liquid damage, especially if it has been exposed to moisture. In this case, the device needs repair or physical restoration before you can proceed with the formatting process.
  2. Also check the microSD card slot and microSD card for any possible signs of physical damages like the connectors are bent, broken, corroded, pushed in or scratched. If so, then have an authorized technician check and restore it.

If all else fail to resolve the problem and you still cannot format the microSD card, then you should consider replacing it with a new or functional microSD card instead.

[Back to Part 1]

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