It seems that you copied one .3ds game to your microSD card. In fact, the r4 card only supports NDS games, not 3ds games. Please copy .nds rom to your microSD card and test it . You can find more informationhere
Here are manufacturer for R4i SDHS Dual Core: r4isdhc.com and r4isdhc.hk Please make sure the right manufacturer because they have different kernel. More from: http://www.digitopz.com/buy-2015-r4isdhc-dualcore-card-from-r4isdhccom-for-3dsndsixlndsindslnds-p-1282.html
Because the used' dsi console fimrware version is higher then your r4i card firmware. So it didnot work. You need to upgrade your r4 card and here is the tutorial: http://www.digitopz.com/r4i-gold-3ds-tutorials-ezp-7.html
Because your connsole version is higher then your r4i card firmware. You need to upgrade your r4i card. Here is the tutorial: http://www.digitopz.com/r4i-gold-3ds-tutorials-ezp-7.html