eMMC card Broken or Damaged?


 I have ultra Sandisk Memory Card 8 GB .When I am trying to format it under linux -Ubuntu using DIsk Utility I am getting the  error.

=> Are you sure you want to format the drive?

This operation concerns the drive “7.9 GB SecureeDigital/SecureDigital Drive”(SL08G)

=> Error formattig drive

An error occurred while performing an operation on “7.9 GB SecureeDigital/SecureDigital Drive” (SL08G):The operation failed.

Detals : 

Error Creating partition Table:helper exited with exit code 1:Error calling fsync(2) ob /dev/mmcblk0:input/output error


 I am not sure If I have damged it or what?

Also when I try to run the below command : 

export DISK=/dev/mmcblk0

sudo dd if=/dev/zero of=${DISK} bs=1M count=20

I get this error : 

Checking that no-one is using this disk right now …

BLKRRPART: Input/output error


Disk /dev/mmcblk0: 121008 cylinders, 4 heads, 16 sectors/track

read: Input/output error

sfdisk: read error on /dev/mmcblk0 - cannot read sector 0

 /dev/mmcblk0: unrecognized partition table type Old situation:

No partitions found

New situation:

Units = mebibytes of 1048576 bytes, blocks of 1024 bytes, counting from 0

   Device Boot Start   End    MiB    #blocks   Id  System

/dev/mmcblk0p1   *     1     12     12      12288    e  W95 FAT16 (LBA)

/dev/mmcblk0p2        13   3780   3768    3858432   83  Linux

/dev/mmcblk0p3         0      -      0          0    0  Empty

/dev/mmcblk0p4         0      -      0          0    0  Empty

read: Input/output error

sfdisk: read error on /dev/mmcblk0 - cannot read sector 0 Re-reading the partition table …

BLKRRPART: Input/output error

If you created or changed a DOS partition, /dev/foo7, say, then use dd(1) to zero the first 512 bytes:  dd if=/dev/zero of=/dev/foo7 bs=512 count=1 (See fdisk(8).)

lsblk gives this : 

lsblk shows :

NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 298.1G 0 disk ├─sda1 8:1 0 290.2G 0 part / ├─sda2 8:2 0 1K 0 part └─sda5 8:5 0 8G 0 part [SWAP] sdb 8:16 1 499.4M 0 disk └─sdb1 8:17 1 498.4M 0 part sr0 11:0 1 1024M 0 rom mmcblk0 179:0 0 7.4G 0 di

PLease assit me in resolving this.What I have done wrong .Have I deleted any partition?How can I restore my card back.I dotn care about the data right now, I just want my emmc in original condition.

if formatting failed the card is probably bad. If it is under warranty contact sandisk support for replacement. 

But The formattign under Windows works fine.

OK finally i got this thing resolved,What a stupid I was.I was using the san disk emmc with the Kingston MMC adpapter.Was not knowing that they are in-compatible across all the emmc.