Remember to Like and Favorite. This is the Pre-Patch with EXP fix and some errors that make the game randomly freeze. For now it works in Desmume and in most flash cards. I have a DSTWO Super Card and it works perfectly. It has been confirmed that it works in the R4 and R4-SDHC with the latest update. If you have another flashcard try it and if it works let all know in the comments. Downloads: Pokemon Black 2 (U): adf.ly Pokemon White 2 (U): adf.ly Desmume 0.9.8: adf.ly Clean Roms: Pokemon Black 2 (U) (Clean): adf.ly Pokemon White 2 (U) (Clean): adf.ly Status: DSTWO – Working R4i-SDHC – Working R4 – Working Acekard2i – Working Desmume – Working NO$GBA – Not Working (Fix Coming Soon)
Source:
http://nintendo--3ds.info/pokemon-black-2-and-white-2-pre-patch-download-usa-mediafire/