This post is a step by step guide to use the r4i gold 3ds card for your 3ds V6.1.10-11. And this guide is also used for dsi and ds lite console.
Before you follow the guide, you need to know the r4i gold 3ds card in this guide is this one : R4i Gold 3DS Wood R4i 3DS flashcard For DS DSi 3DS if you have other r4i gold card, please do not use this guide, you need to download the correct kernel for your card.
Step 1 Format your sd card, remember to back up your contents if you have some important files on the sd card.
Step 2 download the latest wood firmware from the r4i gold 3ds card official site, currently the latest version is V1.60
Step3 extract it, and you will get the wood contents. put all the files, folders on the root of your sd card, make sure put them on the root of your sd card.
Step4 At last, just put your roms on the sd card and enjoy your games.