Thank you very much, I have bought new card reader and tried again. I have installed new firmware ( M3_G03A05_V312_sugar-ref001_20140403.img ) already.
another question , I have still found a firmware (A20_M3_SDK20_DDR1G_20140626_BHOA-V4.0.0 ) for Mele M3, M5 & M6, is the latest?
friend is SDK MeLE M3,M5,M6 the Menu is better. change img.