This post will tell you how to set up your r4i sdhc 3ds rts flashcart, if your card is this one: r4i sdhc 3ds rts, you can use this method to set up and use it. currently r4i sdhc 3ds card can work great on all ds and 3ds console, no matter what version does your console have, this card will be working great on it.
When you receive the r4i sdhc 3ds card, the first thing is to get a micro sd card, any size will be fine, from 2g to 32g, you will need to put the latets kernel and game roms on it.
i would recommend you format the sd card before you use it on the r4i sdhc 3ds card, make sure back up your important files before you do the format.
When everything is ready. let’s get it started.
Step 1 download the latest r4i sdhc 3ds kernel from here: V1.74b , after you downlaod it, you should get a Zip, just extract it and get the kernel files.
Step 2 After you extract it, put all the files below to the root of your sd card, make sure put them on your root of your sd card.
Step 3 you can just also put your games on the root of the sd card or you can create an folder and then put the games on the folder.
so finally your sd card should have the contents below
Step 4 So you have done everything correct, just put the r4i sdhc 3ds card with sd card on your ds or 3ds console and enjoy the games.