With the Nintendo 3DS eShop officially closed as of March 27, 2023, the transfer app is . If you have a fresh CFW install on a 3DS that never downloaded the tool before, you cannot get it from Nintendo. The only way to obtain the application now is via a pre-dumped CIA file.
On your Switch, select Receive Save Data . Once the download finishes, your 3DS hunter will be ready to hunt on the Switch. Cross-Region Transfers (MHGen to MHXX) Monster Hunter Generations Ultimate Save Data Transfer App With the Nintendo 3DS eShop officially closed as
: Open the Save Data Transfer App on both the device with the save data you wish to transfer (the source device) and the device to which you want to transfer the data (the target device). On your Switch, select Receive Save Data
(Switch). While the official servers for this transfer typically rely on the Nintendo eShop—which has faced significant service closures—users with modified consoles can still access and use the app via CIA files. Application Overview (Switch)
Then the is an essential piece of software. It is the digital bridge between two generations of Monster Hunter, and thanks to the archival efforts of the CFW community, that bridge remains standing even after Nintendo closed the gates.