TTDS help with new games, too confused

Right so I have a TTDS(original for the DS/DS Lite), I can get the older games working no problem but I don't understand how to get new games working (Pokemon White 2 in particular), I have heard stuff about "new extinfo.dat" is how you fix it but I have no clue what that is... I am using a "pre-patched rom" that I can get working on emulators but not on a TTDS... any help is much appreciatedP.S. the game half loads and says "error code 4" I don't know how to repair this

See RGF firmware, they are instructions in download on how to use it .http://forum.romulation.net/index.php?topic=43121.0

I followed all the steps (properly I am pretty sure) but now I get a error code 5 instead of 4, does the game being a pre-patched cause this? (pre-patched isn't a clean rom right?)

Pre-patched = patched rom = not clean rom
Un-patched = cleanMake sure to use the proper folder content as indicated by RetroGameFan's (RGF) document in the downloaded MultiCart file, then you replace the 'extindo.dat', 'infolib.dat', and 'savlib.dat' from the very last page of that topic posted by Jhon 591. Make sure also to back up your SD Micro content before hand, format the SD Micro so that it become blank, then you return all backed up files to the Micro, then add the TTMENU/YSMENU files as indicated by RGF and Jhon 591. By then you should be able to run clean roms via running ysmenu.nds / ttmenu.nds first before launching the rom you'd want to play.

They are also other possible causes of errcode=-5

errcode=-4/-5/-6/-8 :
Required loading data missing in infolib or kernel can't interpret ARM9
Also caused by outdated ttpatch.dat/r4patch.dat/m3patch.dat (file depends on which cart you are using)errcode=-81/-82/-83 :
Caused by fragmentation on your µSD. Backup microSD to PC, then Full format with the Panasonic SD Formatter to rectify.Any other error codes during loading, please refer to your carts website

Yes: Only Clean ROMs should be used , No patched are cracked versions.

Jhon you're a top bloke I've got everything working now, (I had made one mistake the first time... whoops)

Replying to #6

Glad to hear glad you got it working, Enjoy your games ;)What was it ??? xd .

I misread the part that says "-All carts except for DSTT/i need to keep their original firmware and then load YSMenu.nds or TTMenu.nds"... and also my rom was pre-patched so yeah