The r4i gold 3ds team released the update patch, but the method is a little different, here is what i did and hope can help you:
What we need:
1. buy r4i gold 3ds
2. sd card
3. a knife
4. a dsi console
1. Download the newest r4i gold 3ds v1.60 wood kernel, even if you did that before, please just re-download it again and cover the old one, download the patch too
2. Unzip the patch, you will find 2 x .nds file and 1 x .doc file, select the dsi update patch, put the patch and kernel in the root of sd card
3. Start your r4i gold 3ds on your dsi, find the .nds file on menu, start it and update your card.
4. After the updating success, reboot your console, the icon will be change
OK, here is the different:
I have 3 r4i gold 3ds in my hands, both 3 cards are the “C” cards which has a C printed on the pcb. 2 of them after the updating, it can work on 3DS v6.0.0-x perfectly, no need use the knife to cut. And just 1 card cannot work, then i did the follow thing:
You will find i don’t cut it, just drill a hole between the C1 and R9, i think cut is a little difficult and just drill a hole has the same effect, and yes, after i drill it, the card work on 3DS with no problem.
So i know for some r4i gold 3ds, you don’t need cut, just use the patch to update your card, it will work, but for other r4i gold 3ds, you need do this. Afdter you update your card, please work it on your 3ds first, maybe you are lucky and no need use knife to cut the pcb.