Pokemon black (E) freezes

I have my Pokemon Black english rom for some time now, it works.... but it just freezes too much.
Like when i catch a sandile or something, then go in a random battle and the game freezes.... thus losing my progress.I'm using M3 DS Real with the Sakura firmware.
Is there a patch to prevent those random freezes?

Maybe using the (USA) ROM may help...Both (U) and (E) versions are region free for languageAre maybe a backup of games and saves and a good format using panasonic SD formatter

Nope, that doesn't help. :-\

Try installing a secondary firmware on your M3 Sakura. Its either the YSMENU/TTMENU or the Wood. Run the game through that secondary firmware. To find the secondary firmware latest download, instruction, and compatibility list, you can find it in the FLASHCART Section.

Thanks, that helped. :)