microSD card detected with wrong size/capacity

[Lonni J Friedman]

I've got a weird one here.  A microSD card which came with a junky old
Android phone claims to be 4GB on its label, however there's some
weird marketing nonsense about how "3GB reserved for music".  When I
plug the card into a reader attached to a linux box, its always
detected as a 1GB card:
[3181684.541224] scsi 10:0:0:0: Direct-Access     Generic  STORAGE
DEVICE   0207 PQ: 0 ANSI: 0
[3181684.541593] sd 10:0:0:0: Attached scsi generic sg7 type 0
[3181685.004787] sd 10:0:0:0: [sdg] 1934848 512-byte logical blocks:
(990 MB/944 MiB)


I'm guessing that there's something weird going on with the card that
hides 3GB from the OS somehow.  Has anyone run into this before?  Any
tips on how to unhide the missing 3GB?

thanks

-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
L. Friedman                                    netllama at gmail.com
LlamaLand                       http://netllama.linux-sxs.org