There is a new kernel version-2.03 for EZ-FLASH IV MicroSD kernel out. It supports GSS switch and individual game GSS switch in KEYSET.CFG, modify the file with your necessary.
EZ-FLASH IV kernel 2.03 changelog:
■ added GSS switch
■ added individual game GSS switch
■ fixed adding data to the end of rom even the GSS is disabled
Download EZ-FLASH IV Kernel 2.03