Make sure you are using latest client and firmware..
firmware 1.7
client software 2.58 with latest dat (if you are not sure you have the latest inforom.dat file redownload client 2.58 from supercard.cn, it will have the latest .dat included) ... an old 2.58 will not have the latest .dat file.
You should also use a bigger save file from the one the client produces, either use the 'copy' command to merge 2 256kb blank save files together to make 1 512kb one or use a hex editor and append an extra 256kb to the save file.
happy gaming.