Before we read this news,you need to know sth about R4ds.cn and their two items.
Until now , R4ids.cn team released two different items, their first item is R4i gold for DS/DSi,their recent item is R4i gold 3DS for DS/DSi/3DS. and they have stopped manufacturing R4i gold and you only can buy R4i gold 3DS, because R4i gold 3DS is working on both DS/DSi and 3DS.
Yesterday r4ids.cn has released the update patch for R4i gold 3DS to make it work on V1.4.2, But before R4i gold 3ds came out,lots of guys have already bought R4i gold and now new firmware V1.4.2 released,how do they update their old cards, this is the good news for them!
Today R4ids.cn team has relased the update patch for their old card--R4i gold, after the update, you can use your R4i gold to work on DSi V1.4.2 system and also on 3DS console.....
here is the quote from the official site
R4ids gold(non-3DS) V1.4.2 Patch is released 2011-05-14
Note:This V142 patch is for R4ids Gold(Non-3DS version) released before 3DS. Please read readme.txt attached in detail before updating. After updating with success, R4ids Gold(Non-3DS) version can support 3DS and NDSi V1.4.2
You can download the update patch from here