firmware help

Hi,
Hope its ok to post this here.
I am running firmware v4.2a x version on my m3 real.Is this the latest version?If not where can i download the latest and how do i do it like getting it on the card ect?will it affect the games i already have on there now?
thanks so much.

The latest one for M3 Ds Real should be the Sakura one I think.

Here....http://gbatemp.net/index.php?showtopic=89197This should explane everything....

thanks for the info and link.So do i bacically just download it and copy and paste in the m3real folder?will it then replace the exsisting firmware?I mean to update it.?sorry for the confusion but i am very computer illerate.lol.
thanks.

Yes it will. Erase the previous firmware.

ok great.thanks so much for the help:)