The R4 website.
R4i-SDHC or the RTS have the best interface in my opinion. They carry R4i-SDHC, R4i 3DS, R4i RTS and others. All of them work on the current firmware version of DS/DSi/3DS.
No, they don't sell R4i at Walmart but you can visit poshsystems.com to pick one up. They carry R4i-SDHC, R4i 3DS, R4i RTS and others. All of them work on the current firmware version of DS/DSi/3DS. R4i-SDHC or the RTS have the best interface in my opinion.
Download newer firmware (sometime named kernel) from your R4i's website and install it on your microsd. Make sure to download it from the correct website. There are many R4i model and they don't all use the same firmware, so use the one stated on your R4i's label. Before deleting anything from you microsd, I strongly recommend to back it up on your computer.
Typically R4i cards are only bought online - but I wouldn't buy an Ri gold card. It's a fake card (the original R4i is red in colour). Most flash cards are made in china, including the r4i gold card. you can buy the latest version - r4i gold 3ds card online. It usually cost 2 weeks to delivery to you. As before said, the r4i gold 3ds is not the best r4i card. Maybe, the r4i sdhc 3ds is better.
You can check the official website printed on the label, and contact them for solution.
it is easy to setup r4i sdhc card for dsi. 1. Download the latest r4i sdhc V1.40b kernel from official website, and install it to the TF card. 2. Download some games or media files, and copy them to the root directory of TF card. 3. insert TF card to R4i SDHC, and put r4i card to Nintendo console, then it can be played.
of course, new r4i v1.6 kernel can work on all below version of r4i card, including r4i v1.4 kernel.
For r4i gold from r4ids.cn, the latest firmware is wood r4 V1.46; for r4i gold V2.0 from r4ids.com, it is the AKAIO V1.8.6 kernel; for r4i-gold card from r4i-gold.com, the latest software is r4i V1.71b.. Now it is already wood r4i v1.51b.
IF that is happening on your r4i there is something wrong with your r4i. It has nothing to do with the sd card its the r4i.
You can buy R4i cards online.
No. R4i and R4 are not illegal. R4i and R4 are only illegal if they have games on them.
r4i gold and r4i sdhc card are most popular in players. both of them can support 3ds, dsi and ds lite. but personally, I think the r4i gold card has better compatibility.