restore SD card capacity

> Paul wrote:

>

>

> \\?\Device\Harddisk3\Partition0 link to \\?\Device\Harddisk3\DR15

> Removable media other than floppy. Block size = 512

> size is 8019509248 bytes

> \\?\Device\Harddisk3\Partition1 link to \\?\Device\Harddisk3\DP(1)0-0+10

> Removable media other than floppy. Block size = 512

> size is 8013233152 bytes

>

> If I run PTEDIT32 by double clicking it, it shows me the contents

of the MBR.

>

Hello, I got a problem with my 1G Sandisk microSD, I can neither write

to the card nor format the card, but I can use the filesin the card.

When i try to format it from windows, it says, format can no t be

finished, not like the write protected thing. And when using HP

formation tool, it can not recognize the card even.

After some study of this thread I try to use dd and PTEDIT32 to fix it

, but not that successful. Firstly after i input "dd --list"

what I got is:

rawwrite dd for windows version 0.5.

Written by John Newbigin

This program is covered by the GPL. See copying.txt for details

Win32 Available Volume Information

\\.\Volume{778cf001-92ea-11dc-97a0-806d6172696f}\

link to \\?\Device\HarddiskVolume2

fixed media

Mounted on \\.\c:

\\.\Volume{778cf002-92ea-11dc-97a0-806d6172696f}\

link to \\?\Device\HarddiskVolume3

fixed media

Mounted on \\.\e:

\\.\Volume{778cf003-92ea-11dc-97a0-806d6172696f}\

link to \\?\Device\HarddiskVolume4

fixed media

Mounted on \\.\d:

\\.\Volume{778cf000-92ea-11dc-97a0-806d6172696f}\

link to \\?\Device\CdRom0

CD-ROM

Mounted on \\.\f:

\\.\Volume{c6d4c893-a4e6-11dd-adae-0013e8522d39}\

link to \\?\Device\CdRom1

CD-ROM

Mounted on \\.\g:

\\.\Volume{31f9c54f-e95e-11de-af8a-0013e8522d39}\

link to \\?\Device\Harddisk1\SP0

removeable media

Mounted on \\.\h:

NT Block Device Objects

\\?\Device\CdRom0

size is 2147483647 bytes

\\?\Device\CdRom1

Removable media other than floppy. Block size = 2048

size is 987738112 bytes

\\?\Device\Harddisk0\Partition0

link to \\?\Device\Harddisk0\DR0

Fixed hard disk media. Block size = 512

size is 160041885696 bytes

\\?\Device\Harddisk0\Partition1

link to \\?\Device\HarddiskVolume1

Fixed hard disk media. Block size = 512

size is 1572864000 bytes

\\?\Device\Harddisk0\Partition2

link to \\?\Device\HarddiskVolume2

\\?\Device\Harddisk0\Partition3

link to \\?\Device\HarddiskVolume3

\\?\Device\Harddisk0\Partition4

link to \\?\Device\HarddiskVolume4

Virtual input devices

/dev/zero (null data)

/dev/random (pseudo-random data)

- (standard input)

Virtual output devices

- (standard output)

the removable media exsits in the first part concering volume things,

but not on the second NT Block Device Objects part. So I can not get

which on is the real object name of this removable media h. Then I

try to use the volume link directly

\\?\Device\Harddisk1\SP0

to point the MicroSD card. and use the command

[code:1:fda6f2ad16]dd if=/dev/zero of=\\?\Device\Harddisk1\SP0 bs=512

count=10000[/code:1:fda6f2ad16] to erase part of the card, but after

it finished with

[code:1:fda6f2ad16]

1000+0 records in

1000+0 records out

[/code:1:fda6f2ad16]

I find no change has been made to the micorSD, at least I can still

use the files in it, and can not format the card still.

Now, how can I do to fix this card now, please to so kind to give a

help, thanks.