It is the first time that I try to write Flash eprom M29f400BB with psop44 but I receive message ''write address failed 0x002000'' The steps that I do is : 1. I choose the flash thatI will work 2. I put the eprom in adapter psop44 3. I read the eprom 4. I erase the eprom 5. I do blank check everthing is ok 6.I try to write eprom and I receive the message above. I have try to remove the adapter psop44 and epro 29f400 and put it again to the programmer but the problem still remain.