I keep getting a system date error with the r4i v1.09

I'm using the r4i which doesn't have the 1.4 on it. I was playing it last night and it worked fine but now when it is on the loading screen it says System date error! Please check NDS system date. How do I fix this? Thanks

weird... to check the date on your DS just turn it on without a game or cart in it and go to the settings... though I've never seen that error before... Hopefully one of the nerdier types can help you, they're awesome. =]

Did you by chance update to 1.4 by accident? Turn on your DSi without the flashcart in it, and check the top screen for your firmware level.

Try setting the date to 1 day earlier than what it really is.

Replying to #4

or to 2007 as got same issue on friends card and he has put date to 2007 and now works fine.

The top screen top left corner says $↑ëVè- the symbol after the - is a circle with a small circle inside. Laos I went three days before and my r4 booted up but it wont load cause it says theres no save file, but I do have one.
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Please can anyone help with this? Needs to finish Devil Survivor