Android SD Card Mounted as Read Only | How to Fix

Daisy updated on Sep 16, 2019 to Partition Master | How-to Articles

How to fix micro SD card that mounted as read-only

"My Android external memory card has turned to read-only all of a sudden. I don't think I played around with any settings to make it happen. I can read it, but no longer write to it or delete it. How to fix it?"

Usually, a memory SD card or USB flash drive itself has been locked into "read-only" mode; it's because the card is getting old, damaged, corrupted or infected by a virus. Here we teach you how to fix read-only SD card to read-write using the command when Android external SD card mounted as read-only that prevents you from writing, deleting, copying or moving data on it.

How to remove read-only from SD card using CMD

Step 1: Plug the read-only micro SD card into Windows.

Step 2: Click "Start" > "Run" and enter cmd.

Step 3: Enter diskpart.

Step 4: Type list volume. Now you'll see all your connected drives, see which one is the memory card drive.

Step 5: Type select volume #. # represents the letter of your memory card drive.

Step 6: Type attributes disk clear readonly > removing the write protection.

CMD alternative - write-protection removal tool

If you are not professional in computing management and not familiar with command lines, don't worry. EaseUS R&D team has promoted a fresh kit for helping you resolve the write-protection issue on your hard drive, external hard drive, USB or SD card, etc., devices.

EaseUS Tools M is a practical computer fixing tool that is safe and light-weighted. It's a perfect alternative to the command line. 

Use this one-click tool to solve the write-protection issues on your own:

Step 1: DOWNLOAD and install EaseUS Tools M for free.

Step 2: Run EaseUS Tools M on your PC, choose the "Write Protection" mode.

Step 3: Select the device which is now "Write-Protected" and click "Disable" to remove the protection.

Remove Write Protection from storage devices.

Now open your SD. You should be able to edit, delete, copy or move files without a hitch.

How to Format Read-only SD Card

Many people tend to format a memory card when mounted as read-only on their Android phones. However, you all end up with failure because of the error that Windows was unable to complete the format, just like how Windows Disk Management fails to format a write-protected SD card. Only when you removed the read-only attribution on the SD card, you can then format it and restore SD card full capacity.

Download EaseUS free partition manager on your Windows computer. Plug in your SD card with the read-only problem fixed by using the command.

Download Now

 Windows 10 is supported


Step 1: Open EaseUS Partition Master. Find your SD card and right-click the partition you want to format and choose "Format".

Format Hard Drive Partition - Step 1

Step 2: Set a new partition label, file system (NTFS/FAT32/EXT2/EXT3), and cluster size to the selected partition, then click "OK".

Format Hard Drive Partition - Step 2

Step 3: Click "OK" on the pop-up window to continue.

Format Hard Drive Partition - Step 3

Step 4: Click the "Execute Operation" button on the toolbar, then click "Apply" to start formatting your SD card.

Format Hard Drive Partition - Step 4

By formatting SD card that was mounted as read-only can help restore its full capacity and make it work as a new storage card.


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