bakugan nds rom failure to load

i download rom but when i put TT card into NDS i get a message saying LOad rom errcode=-7 i also get same code for Kingdom Hearts

Was your card working befor thease games are just them games?You could try theUnnoficial Kernel DSTT v1.17a07.rardsm0079.rarhttp://gamewiki.jp/uploader/dsma/src/dsm0079.rar.htmlGet the latest .dat files hear, place them in the ttmenu folderhttp://sites.google.com/site/weeklyinfolib/
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https://www.romulation.org/forum/index.php?topic=28391.msg483965#msg483965

TT was working ok and i can download some games but others i get this message

Try the infolib.dat and extinfo.dat in your ttmenu folderhttp://sites.google.com/site/weeklyinfolib/

WHAT'S EXTINFO.DAT FOR?extinfo.dat is the file included in DSTT menu 1.17a07, which fixes games with anti-piracy such as Mario and Luigi - Bowser's Inside Story and Chrono Trigger. It is updated as more anti-piracy fixes are made. You put it in the TTmenu folder, and it will NOT work unless you are using 1.17a07. Which leads me to a good point.WHAT'S 1.17a07?This is the latest unofficial DSTT firmware made by ashley and the hacking team at http://gamewiki.jp/uploader/dsma/. For more information about 1.17a07 go to http://gbatemp.net/index.php?showtopic=181996Use. It.

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If this dose not work you can alway reformat your card and go back to your original kernal