Changes

'''/dev/flash''' provides a raw interface to the NAND flash memory. On older [[IOS]] revisions, file system permissions restrict the access to the NAND memory, however, the contents are encrypted. This was fixed on newer revisions.

'''/dev/flash''' provides a raw interface to the NAND flash memory. On older [[IOS]] revisions, file system permissions do not restrict the access to the NAND memory, however, the contents are encrypted. This was fixed on newer revisions.

Be careful when using these interfaces! Calling the wrong ioctl (or calling write() instead of read()) could have unfortunate results.

Be careful when using these interfaces! Calling the wrong ioctl (or calling write() instead of read()) could have unfortunate results.