ASUS CRW5232AS and MTKFlash

Hi, I just noticed that MTKFlash (starting @ version 1.80) is able to recognize my CRW 5232AS’ chip. It recognized as SST25vf040 (Serial), but the program can’t read the firmware, and I cant save the firmware as a binary file. I use these method below to read the firmware:

mtkflash 3 R /C
mtkflash 3 R crw5232.bin (180.1)
mtkflash 3 R /B crw5232.bin (180)
mtkflash 3 R /SST crw5232.bin
mtkflash 3 C

but the reading’s stop @ 00%!
Could anyone help me how to save my firmware into a file?