r4 card wont work

can any one help my card was working fine the last time i used it i have come to use it and it wont work it comes up on top screen 'system data error!please check NDS system data@ can any one help me sort this out thanks

Maybe check time and date and reset, of your NDS system.Give this a try first.

thanks tried that but still same can i try anything else please

Maybe backup games / saves format micro SD chip and replace firmware back onto the micro SD chip with your games and saves.But i can not see this for what it is saying....Maybe someone with experience of the same issue can help you. anyone ?...Post Merge: [time]1313354006[/time]
Check for a few ideashttp://www.r4i-sdhc.com/rde.aspOption 3. it means both card date and the nda bios date to both have to set at the correct date each.

thanks for advise i set the date as 2010 and it works !!!!!! thanks im a happy bunny now :) ;)

windowman09thanks for advise i set the date as 2010 and it works !!!!!! thanks I'm a happy bunny now :) ;)

Your welcome.Although set both dates one on your card r4 est and one on the Nintendo BIOS to 2011