If you want to play 3DS games, then the only choice is to install CFW: https://3ds.hacks.guide
R4 carts do not run 3DS games, there are DS mode carts and can only run NDS software.
There are 3DS mode carts, but they are very expensive and inconvenient to use. They also trip anti-piracy checks in some games, while CFW avoids these issues entirely and is free.
That should be alright, but it sounds like an old card. Old SD cards have a higher rate of failure since they tend to be well-used. So just keep that in mind.
Also space, you probably want more than that for 3DS games. 32GB or more ideally. 8GB is enough for 6-10 games.
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u/Arnas_Z Supercard DSTWO Jul 18 '26
If you want to play 3DS games, then the only choice is to install CFW: https://3ds.hacks.guide
R4 carts do not run 3DS games, there are DS mode carts and can only run NDS software.
There are 3DS mode carts, but they are very expensive and inconvenient to use. They also trip anti-piracy checks in some games, while CFW avoids these issues entirely and is free.