Thread: Brand new MicroSD protected from writing

hi, saw few other threads on subject, none have solution, decided start scratch.

so, have microsd works fine here. decided buy new one, sandisk, , found out write-protected. thought of manufacturer, bought kingston(just 1 have , works fine), it's write-protected.

1 works accessed through sd adapter, , both others accuse protection, though they're both new. tried them on vista, can't formatted either. and, yes, i've checked "lock" switch on adapter.

here's line on fstab sd cards:

code:

/dev/mmcblk0p1	/media/sd	auto	user,exec,rw			0	0

and here's got on dmesg working card , 2 cards don't work

code:

[246217.464749] mmc0: new sdhc card @ address 7f73  [246217.466355] mmcblk0: mmc0:7f73 sd04g 3932160kib   [246217.466755]  mmcblk0: p1  [246242.240132] mmc0: card 7f73 removed  [246267.275170] mmc0: new sd card @ address 1234  [246267.276535] mmcblk0: mmc0:1234 sa02g 1927168kib (ro)  [246267.285772]  mmcblk0: p1  [246289.736124] mmc0: card 1234 removed  [246339.929843] mmc0: new sd card @ address 8fe4  [246339.932760] mmcblk0: mmc0:8fe4 su02g 1931264kib (ro)  [246339.933691]  mmcblk0: p1  [246351.372138] mmc0: card 8fe4 removed

in case you're wondering: card 7f73 working kingston, card 1234 write-protected kingston, , card 8fe4 sandisk(also write-protected). attempts writing or mkfs give me error "this filesystem protected writing", if root. tried change user perissions 777 after mounted, still no use.

ideas?

bumping...

ideas on how bypass weird protection?

Forum The Ubuntu Forum Community Ubuntu Official Flavours Support Hardware [ubuntu] Brand new MicroSD protected from writing

Ubuntu