Just want to say, thank you for all you A23 guys.
The patient service to get my problem out.
R4i 3DS gold for DSi/DSiXL/ Nintendo 3DS + Sandisk MicroSDHC 4G bundles, Save Even More with Value Bundles! You get more for your money when you buy these popular R4 card alone with memory card together - at one low price.This bundles includes aR4i 3DS card for 3DS (www.r4ids.cn) and a Sandisk MicroSDHC 4G. Somebody also called it R4i Gold 3DS card or Gold R4i 3DS card. R4i3DS gold card contains all functions of R4i gold V1.4.3 card, it support MicroSDHC card up to 32GB, it support games and multi-medias, it is compatible with Nintendo 3DS,DSi V1.4.3,DSiLL,DSiXL,DS and DS lite console.
-Compatible with Woodr4i.
-Compatible with all DS editions of different kinds of language
-Supports 3DS / DSL / DSi / LL / XL
-Supports Action Replay cheat
-Support SDHC (Micro SD 4G,8G,16G,32G)
-2nd generation storage device (no booting tool required)
-Flush fitting slot 1 card
-Uses MicroSD card, FAT16 or 32
-Supports any MicroSD card speed with no lag in game
-Supports Clean ROM, drag and drop. Works on any OS
-Built in NoPass
-Automatically detect save type
-Save directly to MicroSD card, not to onboard chip
-Supports Moonshell and other homebrew.
-User friendly skinnable interface. Touchscreen or button operation
-Supports rumble pak and memory pak
-Supports the WiFi game, DS Rumble Pak, DS Browser
-Supports changes of the background of Operation Interface
-Support Skin DIY by setting background and font colors on Main Menu and Game Menu manually and automatically
-Supports 4-scale-lightness adjustment ( DS Lite only )
-Supports the Soft Reset.
-moonshell 2.02 support Software Reset function( Press START key back to the R4 menu)
Sandisk Micro SDHC 4G
Sandisk MicroSD 4G,Capture a memory every day on SanDisk® Standard SDHC™cards. It's easy with affordable, quality cards from the minds behind flash memory. For use in all kinds of digital devices with SDHC™ card slots and with capacities up to 32GB*, SanDisk Standard cards ensure you have plenty of room to capture and store photos, videos and tunes every day. Plus, they're backed by a five-year limited warranty and priced to give you a lot for a little. SanDisk Standard SDHC cards are built for real life - handling its bumps and turns while capturing life in all its brilliance.