R4 Revolution for DS

I have downloaded 3 games put them onto my R4.
They open but then come saying "the saved data could not be accessed please turn of the ds and reinsert the card" tried this and says the same thing can anyone help please.

Re: Any help would be appreciated Take a look in the common issues topic.
https://www.romulation.org/forum/index.php?topic=1462.0You need to update your firmware. The R4 is no longer supported by the original team, you will want to use the Ysmenu unofficial firmware.
https://www.romulation.org/forum/index.php?topic=27617.0

Re: Any help would be appreciated R4li website has now taken over the build of the original R4 kernalwww.r4li.comR4 v1.24 kernel 2009-11-25