If you have an internet connection on your modded 3DS, you can bypass manual file transfers:
The most common CIA found in archival sources is Ver. 1.3 (integrated) , which includes all prior patches. Monster Hunter 4G 3DS -JPN- -Update- CIA
If your 3DS isn't Japanese, Luma3DS automatically bypasses region locks, allowing you to play MH4G flawlessly on NA or EU hardware. If you have an internet connection on your