If You have fw 2.30, then only option left for You is FunTuna but it will not be loaded with console start, needs user actions on each boot and back to OSDSYS (browser).
If You have 2.20, it should works if FMCB was installed on this specific Memory Card and for this model (or cross region installed).
Boot Free DVDBoot and check ROMVER in uLE/wLE under misc>>debug. This will show Your firmware ID where also fw version is displaying.