Pen drive write protected - Unable to format

Question

I have a usb pen drive mounted. I cannot create any folder or delete any file. It says read only mode.
I also tried to formate it using the gparted tool, it says partition read only
I tried dd command it also says partition is read only file system
sudo dd if=/dev/zero of=/dev/sdb1
Even dmesg gives some errors
sdb: error -123 sending status comand
sdb: error -123 sending read/write command, response 0x0, card status 0x0
end_request: I/O error, dev sdb, sector 168
I just want my pend drive to work. I am willing to erase all the data. I have searched on google, but there is no answer from linux side. From windows side they have a tool called "HP USB Disk Storage Format Tool SP27608" which does. I dont want to shift to windows for this reason.except that i got a link for a windows software

Answer 1

$mount
proc on /proc type proc (rw,relatime)
sys on /sys type sysfs (rw,relatime)
udev on /dev type devtmpfs (rw,nosuid,relatime,size=10240k,nr_inodes=215447,mode=755)
/dev/disk/by-uuid/f3a6d5c8-57db-48d7-afff-e6762a184f55 on / type ext3 (rw,commit=0)
fusectl on /sys/fs/fuse/connections type fusectl (rw,relatime)
none on /dev/pts type devpts (rw)
none on /dev/shm type tmpfs (rw)
/dev/sda2 on /media/GAUR type fuseblk (rw,nosuid,nodev,allow_other,blksize=4096)
gvfs-fuse-daemon on /home/simha/.gvfs type fuse.gvfs-fuse-daemon (rw,nosuid,nodev,user=simha)
/dev/sdb1 on /media/disk type vfat (ro,nosuid,nodev,uhelper=hal,uid=1000,utf8,shortname=mixed,flush)