
Originally Posted by
simox
Well, to patch the MAIN firmware we need to know how to update the checksums in header. In CID49 (and lower CIDs) header there is one checksum byte per flash block. The formula is known, and there is a tool for this(GFlash). But in cid50,51,52 firmware files for each flash block there are 20 checksum bytes = huge protection, so I don't think that anyone will figure it out soon the algorithm...
In short currently is impossible...