I have tried this solution and it doesnt work.
sudo fdisk -l output is

Disk /dev/sda: 750.2 GB, 750156374016 bytes
255 heads, 63 sectors/track, 91201 cylinders, total 1465149168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x0004a414

Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *        2048      718847      358400    7  HPFS/NTFS/exFAT
/dev/sda2          718848   759897456   379589304+   7  HPFS/NTFS/exFAT
/dev/sda3       759898110  1465147391   352624641    5  Extended
Partition 3 does not start on physical sector boundary.
/dev/sda5      1448615936  1465147391     8265728   82  Linux swap / Solaris
/dev/sda6       759898112  1448615935   344358912   83  Linux

Partition table entries are not in disk order

Disk /dev/sdb: 3960 MB, 3960471552 bytes
31 heads, 30 sectors/track, 8317 cylinders, total 7735296 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Device Boot      Start         End      Blocks   Id  System
/dev/sdb1            8192     7735295     3863552    b  W95 FAT32

When apply
sudo mount --options remount,rw /dev/sdb1
says: mount: cannot remount block device /dev/sdb1 read-write, is write-protected
When apply this: sudo chown -hR waqas /dev/sdb1
it shows changing the permission of files and gives the log files but result is nothing when i goto the card and check the permission its the same.
same case with the sudo chmod -R 777 /dev/sdb1
and the last one i apply gksudo nautilus when navigate to the card and try to change the permission it says: enter image description here and window close after a second. So I am not sure what to do.

Ubuntu 13.10
this card was in Android phone and somehow got messed up with the permissions.
written on card: Micro SD card HC 4GB

  • Can you write to it in any other device? – Ken Sharp Dec 5 '15 at 0:03

I just came across the same problem. The reason for the error message is that there is physical switch that prevents a write to the media. You SD adapters have one. But micro sd doesnt.

Solution: (Obvious :P) Flip the switch in the SD card adapter and plug it in.

  • micro card doesnt have switch on it where it is IMAGE ? – Waqas Jan 26 '14 at 13:13
  • Micro SD card doesnt have any physical switches. But an adapter for it is having one. cheapchips.com.au/resources/image/… In the left side you can see a small plastic movable thing. What did you mean @RanaMuhammadWaqas ? – Jay Aurabind Jan 27 '14 at 5:06
  • I have that unlocked and it doesnt work either a way changed the adapter jacket even i thought you telling me there is a lock on micro sd card – Waqas Jan 27 '14 at 14:16
  • In that case, I am out of option, sorry. Sometimes your adapter itself is damaged. Or perhaps when you plug it in, the switch automatically changes the state (mechanically) due to some congestion. I cant think of anything else. – Jay Aurabind Jan 28 '14 at 10:49

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