Hi, just for future reference (as gotten from the article on mycomputingart, tx Char) because I received and *fixed* the same error with those instructions: When your N900 doesn't mount the vfat partition on mmcblk0p1 anymore and you get 'bad superblock' or "logical sector size is zero", try this: 0. (make a backup of /dev/mmcblk0p1 first if possible!, verify you have the correct "mmcblk0p1" partition *before* pressing enter !) 1. start a terminal on the N900, give these commands: > sudo gainroot > dd if=/dev/mmcblk0p1 of=/home/user/sector6.bin bs=512 skip=6 count=1 > dd if=/home/user/sector6.bin of=/dev/mmcblk0p1 bs=512 count=1 (wait a few seconds) 3.Now try one of these: > mount /dev/mmcblk0p1 /home/user/MyDocs OR > reboot (or simply switch off and switch back on) Sander