I am unable to read flash 39vf6401 .. I was getting an error with the device id and noticed in the device text the was incorrect..have amended that and reading device id correctly now..when I try to read the programmer fails at 50 % and gives an error of " address exceeded range . Internal error.. I have checked and device text and the codesize is 8288608 which is correct I can read it with 39vf3201 without any errors but the file size is incorrect Please help