I was just trying to check if there is enough space in the flash region number 16.
It seems that everything is ok, the dumped file is 1MB and the file being flashed is 1 MB. Also I've checked that "xrgn" handler in ldr.bin doesn't prevent flashing region 16. So I don't know what's wrong.
Let's try another way. Try flashing this RGN file: [Only registered and activated users can see links. ]