I'm trying to carve NAND flash raw dumps for SMS:s (for school, digital forensics), following the information on dreamfabric.com, but I'm having some trouble. First of all, the specification isn't complete as I'm seeing SMS:s that strays from this, and I feel there is a lot of noise in the data that conforms to the dreamfabric info (no clear header or trailer, fields can have widely varying values etc).
My current method is simply starting at each logical sector (512 bytes) and checking for 0, 1, 3, 5 or 7, and then do some simple sanity checks, but this results in a heap of false positives.
Any suggestions? Links to further info?