Extreme data recovery

[verduz]

I had a micro-SD card in my Android Tablet that, suddenly, stopped to be recognized.
I put it on my Kubuntu and it is still not recognized.
Using

cd /dev
ls

I found out that, when I have the micro-SD inserted, there is a new entry called "sdb".
That's all I have. Usual commands like parted, testdisk or gpart returns an error like "No medium found".

Any ideas on how to fix this problem and recover data? Or at least, how to format the micro-SD card to use it again.

Thanks

[dibl]

That's an odd combination -- I lost a old USB flash drive just yesterday, but when they go, usually there is nothing listed in /dev either. Open your terminal and issue

sudo fdisk -lu

Does it list the device?

Or at least, how to format the micro-SD card to use it again.

Normally, if the device is listed in /dev as a "sdx" drive, then gparted will see it. Alt-F2 "kdesudo gparted" with no quote marks should launch it, if you have it installed. If gparted sees it, and if the data on it are important, you might be successful in copying and pasting the entire partition to another storage device, and thereby recovering the data. If you're going to reformat it, then you should start by making a new partition table.

[oshunluvr]

Remove the card, open a terminal, type dmesg, re-insert the card, type dmesg again, and post the output that results from the insertion.

[verduz]

@dibl
fdisk doesn't list it and neither does gparted.

@oshunluvr
Here you are:

a lot of stuff too long to be posted

[  889.031714] sd 8:0:0:0: Attached scsi generic sg1 type 0
[  889.654724] sd 8:0:0:0: [sdb] Attached SCSI removable disk

[oshunluvr]

So what does this show?

sudo fdisk -l /dev/sdb

[verduz]

Returns nothing:

verduz@Verduz-EeePC:~$ sudo fdisk -l /dev/sdb
verduz@Verduz-EeePC:~$

[oshunluvr]

My guess is it's dead.